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"pharynx" Definitions
  1. the soft area at the top of the throat where the passages to the nose and mouth connect with the throatTopics Bodyc2
"pharynx" Antonyms

918 Sentences With "pharynx"

How to use pharynx in a sentence? Find typical usage patterns (collocations)/phrases/context for "pharynx" and check conjugation/comparative form for "pharynx". Mastering all the usages of "pharynx" from sentence examples published by news publications.

This drawing of pharynx vessels is computer-created, and more simplified.
Rather, it is absorbed into veins in the mouth, pharynx and esophagus.
Could there be an abscess seeded deep in his oral pharynx from some earlier infection?
There is also probably evidence of an association for cancers of the mouth, pharynx and larynx.
Higher-risk strains, which can cause mouth and pharynx cancer, appeared in 4% of the sample group.
"It's about the ability to relax and dilate your throat, the pharynx and the epiglottis," he said.
"There is no use in developing a new treatment if it doesn't work on the pharynx," Dr. Alirol said.
However, when a "disgusting" agent is put into the mouth, molecules reach the olfactory receptors via the nasal pharynx retronasally.
Connor's report found there is strong evidence that alcohol causes cancer of the liver, colon, rectum, esophagus, larynx, pharynx and female breast.
Usually it's your tonsils or the lining of your throat itself (called the pharynx) that get inflamed, which causes the ache, he says.
But I did go, and sure enough, it was a severe swelling of my pharynx probably caused by all those days breathing in sawdust.
"Conjunctiva is modified mucus membrane, like the inside of your mouth or the inside of your nose or nasal cavity and pharynx," Steinemann said.
The female then stimulates the male "by moving her stylets [mouth-like openings] and contracting the sucking pharynx [the throat]," according to the study authors.
The researchers noted that the man's specific injury was extremely rare; most cases of a torn pharynx are caused by wayward surgery or neck trauma.
"That strep organism, that is really common, somehow that went from his pharynx in his throat and made its way into his abdominal cavity," she said.
Those risks multiply for people who both drink and regularly smoke, particularly when it comes to cancers of the mouth, pharynx, larynx and esophagus, Connor said.
Finally, there's some limited research suggesting that gonorrhea can be transmitted between the rectum and pharynx, as researchers at Melbourne University in Australia proposed in 2017.
They are spread by sneezes and coughs, which produce medium-size droplets that can be carried though the air to the nose and pharynx of nearby people.
Tardigrades have eight legs with claws at the end, a brain and central nervous system, and a sucker-like pharynx behind their mouth, which can pierce food.
In his medical records, he had written that Jahi's right carotid artery appeared abnormally close to the pharynx, a congenital condition that can potentially raise the risk of hemorrhaging.
The rate of oral cavity and pharynx (throat) cancers has gone down by 2% in black men and women, but increased by 1.2% in whites, according to the ACS.
It failed to take into account scientific information on certain types of cancers clearly linked to asbestos, including ovarian cancer; colorectal cancer; and cancers of the stomach, esophagus, larynx and pharynx.
Subsequent imaging tests found that the force of the man's inward sneeze inadvertently punctured his pharynx, the section of the throat behind the mouth and nose found before the esophagus and larynx.
Respiratory illnesses generally fall into two categories: upper respiratory — infections in the nose, pharynx, or larynx, like the common cold and seasonal influenza; and lower respiratory illnesses, like pneumonia, which infect the lungs.
But excessive drinking — more than about a drink a day for women and two drinks a day for men — is also linked to several types of cancer, including breast, colon, pharynx, larynx and esophageal.
Among men, increases in mortality rates were recorded for oral and pharynx cancers, as well as cancers affecting the soft tissue of the heart, brain and other nervous systems, as well as pancreatic cancer.
Khoomei means "pharynx", and performers imitate the sounds of nature, emitting a melody of harmonics alongside a continuous drone, UNESCO, which added the art form to its intangible heritage listing in 2009, says on a website describing it.
The delicate hyoids connect the back of the mouth, or pharynx, to the openings of the esophagus, which is the tube connecting the throat to the stomach, and the larynx, the "voice box" that provides an air passage to the lungs.
It's unclear what type of throat cancer Moran had, but the term is usually used to describe either cancer of the larynx (also known as the voicebox) or the pharynx (the upper portion of the throat, behind the mouth and nasal cavity).
The pseudomembrane develops because the bacteria that cause the disease, Corynebacterium diphtheriae, make a potent toxin, a poison that spreads in the blood and destroys the cells that line the mouth and pharynx, creating the debris of the pseudomembrane (it can also damage the heart and kidneys).
The results also showed that a smoking a pack of cigarettes a day led to an average 97 mutations in each cell in the larynx, 39 mutations for the pharynx, 23 for the mouth, 18 for the bladder, and six mutations in every cell of the liver each year.
Much like how fan groups have their own moniker, each group's lightstick also has its own name — EXO has the "Pharynx," TWICE has the "Candy Bong" (bong means "stick," ya stoners), and BTS has the "ARMY Bomb" (which we don't recommend saying near any kind of security or police).
"715 (Creeks)" presents his voice alone, naked and unaccompanied, except when little bubbles of double-tracked electronic air erupt through his pharynx, elongating vowels, warping consonants, and stretching out the contours of natural singing until one's conscious mind mutters ironic distance and the unconscious writhes at the earnest expression of pain.
A handy graphic from Los Alamos breaks it down for us:Image: Los Alamos National LaboratoryIf you smoke a pack a day for a year, you're giving yourself approximately 150 mutations per lung cell, 97 per larynx cell, 39 per pharynx cell, 6 per liver cell, 18 per bladder cell, and 23 per oral cavity cell.
As soon as the bolus of food is received in the pharynx, the elevator muscles relax, the pharynx descends, and the constrictors contract upon the bolus, and convey it downward into the esophagus. During deglutition, they contract and cause peristaltic movement in the pharynx.
As soon as the bolus of food is received in the pharynx, the elevator muscles relax, the pharynx descends, and the constrictors contract upon the bolus, and convey it downward into the esophagus.
The function of the red spots in the pharynx is unclear.
As its name implies, the pharyngeal region is occupied mainly by the pharynx. The large buccal siphon opens into the pharynx, acting like a mouth. The pharynx itself is ciliated and contains numerous perforations, or stigmata, arranged in a grid-like pattern around its circumference. The beating of the cilia sucks water through the siphon, and then through the stigmata.
The oropharynx, at the back of the mouth, forms a circle and includes the base of the tongue (posterior third) below, the tonsils on each side, and the soft palate above, together with the walls of the pharynx, including the anterior epiglottis, epiglottic valleculae and branchial cleft at its base. The oropharynx is one of three divisions of the interior of the pharynx based on their relation to adjacent structures (nasal pharynx (nasopharynx), oral pharynx (oropharynx) and laryngeal pharynx (laryngopharynx - also referred to as the hypopharynx), from top to bottom). The pharynx is a semicircular fibromuscular tube joining the nasal cavities above to the larynx (voice box) and oesophagus (gullet), below, where the larynx is situated in front of the oesophagus. The oropharynx lies between the mouth (oral cavity) to the front, and the laryngopharynx below, which separates it from the larynx.
Mutations in HEL308 are associated with cancer of the pharynx and mouth.
The pharynx forms the first part of the digestive system. The endostyle produces a supply of mucus which is then passed into the rest of the pharynx by the beating of flagella along its margins. The mucus then flows in a sheet across the surface of the pharynx, trapping planktonic food particles as they pass through the stigmata, and is collected in the ridge on the dorsal surface. The ridge bears a groove along one side, which passes the collected food downwards and into the oesophageal opening at the base of the pharynx.
In order to ingest snails and large slugs, O. ladislavii pierces the prey's body with its pharynx and sucks its contents, apparently after releasing digestive enzymes. Small slugs may be entirely sucked by the pharynx into the intestine.
All vertebrates have a pharynx, used in both feeding and respiration. The pharynx arises during development in all vertebrates through a series of six or more outpocketings on the lateral sides of the head. These outpocketings are pharyngeal arches, and they give rise to a number of different structures in the skeletal, muscular, and circulatory systems. The structure of the pharynx varies across the vertebrates.
Pharyngeal aspiration introduces a substance into the pharynx for aspiration into the lungs. It is less technically difficult than intratracheal instillation the pharynx is higher in the respiratory system than the trachea. Pharyngeal aspiration is the introduction of a substance into the pharynx and its subsequent aspiration into the lungs. It is used to test the respiratory toxicity of a substance in animal testing.
As soon as the bolus of food is received in the pharynx, the elevator muscles relax, the pharynx descends, and the constrictors contract upon the bolus, and convey it downward into the esophagus. They also have respiratory mechanical effects.
Inflammation of the pharynx, or pharyngitis, is the painful inflammation of the throat.
Two oval anterior suckers lies at the anterior end of the body.The haptor has 28-30 clamps. The mouth, which opens at the anterior end of the body leads into the pharynx. The pharynx lies in contact with two anterior suckers.
The word pharynx (OED 2nd edition, 1989.Entry "pharynx" in Merriam-Webster Online Dictionary, retrieved 2012-07-28.) is derived from the Greek φάρυγξ phárynx, meaning "throat". Its plural form is pharynges or pharynxes , and its adjective form is pharyngeal ( or ).
The ecology of Polyclinum planum is not well documented, though like almost all other tunicates it makes its living by filter feeding, also known as suspension feeding. Rows of small cilia-lined openings called stigmata are found in the wall of this each zooid's large pharynx. Beating of cilia pulls water and small particles into the pharynx through the incurrent oral siphon. At the same time a long thin structure called the endostyle that is located along the ventral wall of the pharynx secretes a thin sheet of mucous that is continuously drawn dorsally along the inner walls of the pharynx.
Water that enters the pharynx passes through the mucous sheet but particles including phytoplankton, detritus, etc., become trapped in the mucus which is continuously rolled into a rope and swallowed by the zooid at the dorsal margin of the pharynx. Water exiting the pharynx enters a space called the atrium and then exits the body via the cloacal siphon (excurrent opening). It's not a particularly exciting life style, but it's a living.
The generic name comes from Greek, "" means "darkness" and Greek name "" for "pharynx" with "" means "teeth".
Behind this organ is the velum, which acts as an internal filter before food enters the pharynx. The food particles adhere to secreted mucus on the pharyngeal bars before being brought to the epibranchial groove on the dorsal side of the pharynx. Following this, the food is transferred to the gut, and excess water is pumped from the pharynx through the pharyngeal slits. This excess water passes through the atriopore and is then excreted from the body.
Species identification was performed thereafter by observing the cibarial armatures, spermatheca and the pharynx using identification keys.
The middle layer is also known as the pretracheal fascia. It envelopes the strap muscles (sternohyoid, sternothyroid, thyrohyoid, and omohyoid muscles). It also surrounds the pharynx, larynx, trachea, esophagus, thyroid, parathyroids, buccinators, and constrictor muscles of the pharynx. The deep layer is also known as the prevertebral fascia.
The stylopharyngeus is a muscle in the head that stretches between the temporal styloid process and the pharynx.
Ventral bar 55 µm long; dorsal bar 46 µm long. Hook 11 µm long. Pharynx 45 µm wide.
Swallowed objects are more likely to lodge in the esophagus or stomach than in the pharynx or duodenum.
Erinaceusyllis cirripapillata shows simple and unidentate, dorsal chaetae from chaetiger 7, showing marginal spines; its ventral simple chaetae are slender and smooth, present on the posterior parapodia. Its acicula is solitary and acuminate. The pharynx is slender, spanning 3 segments. Its pharyngeal tooth is located on the opening of the pharynx.
Oropharyngeal dysphagia arises from abnormalities of muscles, nerves or structures of the oral cavity, pharynx, and upper esophageal sphincter.
The word velopharyngeal uses combining forms of velo- + pharyng-, referring to the soft palate (velum palatinum) and the pharynx.
If the recurrent larangyl nerve is targeted, the pharynx will begin to atrophy and voice function may be lost.
It communicates with the nasal and oral cavities, infratemporal fossa, orbit, pharynx, and middle cranial fossa through eight foramina.
They feed on detritus, and most species have unusually muscular stomachs and a complex pharynx to help in digestion.
The pharynx is long, spanning approximately 4 to 5 segments. Its pharyngeal tooth is small and rhomboidal, without papillae on its opening. Its proventricle is similar in length to the pharynx, with 21–22 muscle cell rows. Its pygidium is small, with 2 anal cirri, similar to its dorsal cirri but rather longer.
Lampreys have seven pairs of pouches, while hagfishes may have six to fourteen, depending on the species. In the hagfish, the pouches connect with the pharynx internally. In adult lampreys, a separate respiratory tube develops beneath the pharynx proper, separating food and water from respiration by closing a valve at its anterior end.
Lampreys have seven pairs of pouches, while hagfishes may have six to fourteen, depending on the species. In the hagfish, the pouches connect with the pharynx internally. In adult lampreys, a separate respiratory tube develops beneath the pharynx proper, separating food and water from respiration by closing a valve at its anterior end.
The human pharynx is conventionally divided into three sections: the nasopharynx, oropharynx, and laryngopharynx. It is also important in vocalization. In humans, two sets of pharyngeal muscles form the pharynx and determine the shape of its lumen. They are arranged as an inner layer of longitudinal muscles and an outer circular layer.
Pharyngeal consonants are made by retracting the root of the tongue far enough to almost touch the wall of the pharynx. Due to production difficulties, only fricatives and approximants can produced this way. Epiglottal consonants are made with the epiglottis and the back wall of the pharynx. Epiglottal stops have been recorded in Dahalo.
The CNS consists of a bilobed brain (cerebral ganglia, or supra-pharyngeal ganglion), sub-pharyngeal ganglia, circum-pharyngeal connectives and a ventral nerve cord. Earthworms' brains consist of a pair of pear-shaped cerebral ganglia. These are located in the dorsal side of the alimentary canal in the third segment, in a groove between the buccal cavity and pharynx. A pair of circum-pharyngeal connectives from the brain encircle the pharynx and then connect with a pair of sub-pharyngeal ganglia located below the pharynx in the fourth segment.
The only other musculature is the circular sphincter muscles which control the size of the siphons. The siphons each have six or more pointed lobes and the opening into the pharynx is surrounded by ten large and ten small tentacles, designed to prevent the entry of particle too large for the animal to cope with. The pharynx occupies most of the body cavity and is surrounded by a water-filled atrium. This is criss-crossed by various mesenteries which provide support for the pharynx and the rest of the gut.
The gullet, at the lower end of the pharynx, links it to a loop of gut which terminates near the atrial siphon. The walls of the pharynx are perforated by several bands of slits, known as stigmata, through which water escapes into the surrounding water- filled cavity, the atrium. This is criss-crossed by various rope-like mesenteries which extend from the mantle and provide support for the pharynx, preventing it from collapsing, and also hold up the other organs. The Thaliacea, the other main class of tunicates, is characterised by free- swimming, pelagic individuals.
Tegumental scales with rounded anterior margins extending from peduncle anteriorly into posterior trunk. Cephalic region broad, with terminal and two bilateral poorly developed lobes, three bilateral pairs of head organs, pair of bilateral groups of cephalic-gland cells at level of pharynx. Two pairs of eyespots lacking lenses immediately anterior to pharynx; one to all eyespots poorly defined, apparently replaced by dissociated chromatic granules; accessory chromatic granules small, irregular in outline, usually present in cephalic region. Pharynx subspherical to subovate; esophagus short to nonexistent; intestinal ceca blind, extending posteriorly to near peduncle.
The inner muscles of the pharynx are divided in two layers. Kenkiidae species are not pigmented and they are usually blind.
They may have had a lifestyle similar to modern tunicates, filter-feeding by pumping water through gill slits in their pharynx.
The presence of the cibarial armature, for example, is an efficient tool for damaging microfilariae as they pass through the pharynx.
The pharynx connects the mouth to the gastrovascular cavity. This structure branches throughout the body allowing nutrients from food to reach all extremities. Planaria eat living or dead small animals that they suck up with their muscular mouths. Food passes from the mouth through the pharynx into the intestines where it is digested by the cells lining the intestines.
A URTI may be classified by the area inflamed. Rhinitis affects the nasal mucosa, while rhinosinusitis or sinusitis affects the nose and paranasal sinuses, including frontal, ethmoid, maxillary, and sphenoid sinuses. Nasopharyngitis (rhinopharyngitis or the common cold) affects the nares, pharynx, hypopharynx, uvula, and tonsils generally. Without involving the nose, pharyngitis inflames the pharynx, hypopharynx, uvula, and tonsils.
The upper portion of the larynx and lower portion of the pharynx are also found in the front part of this space.
With infections, there can be rare cases where an expression of fluid is projected into the pharynx causing other problems within the neck.
Cross section of the head and inner neck, including the 201x201pxThe performer must first lean the head back, hyper-extending the neck, and relax the upper esophageal sphincter (a generally involuntary muscle that contracts the top of the esophagus). Retching must be controlled while the sword, lubricated by saliva, is inserted through the mouth and past the pharynx. According to a study on 8 "normal subjects", the transverse diameter of the pharynx at its smallest point is on average 1.7±0.5 cm. Once past the pharynx and esophageal sphincter the sword passes swiftly, assisted by gravity, straightening the flexible esophagus.
Numerous tegumental scales with rounded anterior margins extending from posterior ends of intestinal ceca into peduncle. Cephalic region broad, with rounded terminal and two poorly developed bilateral lobes; three bilateral pairs of head organs; pair of bilateral groups of cephalic-gland cells at level of pharynx. Four eyespots lacking lenses immediately anterior to pharynx; members of posterior pair larger, equidistant or slightly closer together than those of anterior pair; accessory chromatic granules small, irregular in outline, uncommon or absent in cephalic region. Pharynx ovate, muscular; esophagus short to nonexistent; intestinal ceca blind, extending posteriorly to level of peduncle.
The pharynx acts as a suction pump; its muscular walls draw in food. In the pharynx, the pharyngeal glands secrete mucus. Food moves into the esophagus, where calcium (from the blood and ingested from previous meals) is pumped in to maintain proper blood calcium levels in the blood and food pH. From there the food passes into the crop and gizzard.
Radical consonants either use the root of the tongue or the epiglottis during production. Pharyngeal consonants are made by retracting the root of the tongue far enough to touch the wall of the pharynx. Due to production difficulties, only fricatives and approximants can produced this way. Epiglottal consonants are made with the epiglottis and the back wall of the pharynx.
Species of Arthurdendyus are characterized by a bell-shaped pharynx and ovaries placed laterally to the male copulatory apparatus, while most land planarians species have ovaries located much more anteriorly, usually close to the brain or to the pharynx. Other characteristic shared with closely related genera, such as Artioposthia and Newzealandia, is the presence of adenodactyls in the copulatory apparatus.
Erinaceusyllis ettiennei shows simple, dorsal chaetae from midbody, unidentate and smooth; its ventral simple chaetae being slender and present on the posterior parapodia. Its acicula is solitary and acuminate, with tiny subdistal spines present. The pharynx is long and slender, spanning 4 segments. Its pharyngeal tooth is small and is located near the opening of the pharynx, without papillae on its anterior rim.
In the hagfish, the pouches connect with the pharynx internally and a separate tube which has no respiratory tissue (the pharyngocutaneous duct) develops beneath the pharynx proper, expelling ingested debris by closing a valve at its anterior end. Lungfish larvae also have external gills, as does the primitive ray-finned fish Polypterus, though the latter has a structure different from amphibians.
Ventral bar 78 μm long; dorsal bar 50 μm long. Hook 12 μm long. Pharynx 54 μm wide. Male copulatory organ 114 μm long.
The epiglottis is normally pointed upward during breathing with its underside functioning as part of the pharynx. There are taste buds on the epiglottis.
It was our priority to investigate the vector that were transmitting the disease by exposing the identification features like spermatheca, pharynx and cibarial teeth.
Jaws are absent. The long, ciliated oesophagus emerges posterodorsally from the pharynx and is flanked by longitudinal muscles. One pair of large salivary glands discharges into the oesophagus via narrow salivary gland ducts directly behind the pharynx. The large, sac-like digestive gland is placed at the left side of the visceral hump flanking the ovotestis and extends almost up to the end of the visceral hump.
The voiceless upper-pharyngeal plosive or stop is a rare consonant. Pharyngeal consonants are typically pronounced at two regions of the pharynx, upper and lower. The lower region is epiglottal, so the upper region is often abbreviated as merely 'pharyngeal'. Among widespread speech sounds in the world's languages, the upper pharynx produces a voiceless fricative and a voiced sound that ranges from fricative to (more commonly) approximant, .
The voiced upper-pharyngeal plosive or stop is a rare consonant. Pharyngeal consonants are typically pronounced at two regions of the pharynx, upper and lower. The lower region is epiglottal, so the upper region is often abbreviated as merely 'pharyngeal'. Among widespread speech sounds in the world's languages, the upper pharynx produces a voiceless fricative and a voiced sound that ranges from fricative to (more commonly) approximant, .
An earthworm's digestive system consists of a mouth, pharynx, esophagus, crop, gizzard, and intestine. The mouth is surrounded by strong lips, which act like a hand to grab pieces of dead grass, leaves, and weeds, with bits of soil to help chew. The lips break the food down into smaller pieces. In the pharynx, the food is lubricated by mucus secretions for easier passage.
The stomochord is a flexible, hollow tube found in hemichordates. Stomochords arise in embryonic development as an outpocketing from the roof of the embryonic gut anterior to the pharynx. In adults, they extend dorsally from the pharynx into the proboscis, and serve to communicate with the oral cavity. Their walls are composed primarily of epithelial cells, but ciliated and glandular cells are also present.
Pharyngeal arches are characteristic features of vertebrates whose origin can be traced back through chordates to basal deuterostomes who also share endodermal outpocketings of the pharyngeal apparatus. Similar patterns of gene expression can be detected in the developing pharynx of amphioxus and hemichordates. However, the vertebrate pharynx is unique in that it gives rise to endoskeletal support through the contribution of neural crest cells.
The mouth is located at the forward end of the animal, and opens into a muscular, pumping pharynx. The pharynx connects, via a short oesophagus, to one or two blind-ending caeca, which occupy most of the length of the body. In some species, the caeca are themselves branched. As in other flatworms, there is no anus, and waste material must be egested through the mouth.
There are also two buccal suckers anterior to the pharynx at the anterior extremity. The digestive organs include an anterior, terminal mouth, a pharynx, and a posterior intestine with two lateral branches. Each adult contains male and female reproductive organs. The reproductive organs include an genital atrium, armed with numerous conical spines, a single ovary, vitellarium glands and testes which are posterior to the ovary.
This worm lives submerged, head-down in the sediment, with its thread-like gills on the surface, presumably to facilitate oxygen take-up. It is a deposit feeder and the pharynx is eversible. It is presumed that the worm scoops up dollops of sediment with the pharynx and then extracts the nutrients from what is swallowed as the main bulk passes through the long, coiled gut.
Levenstein's figure of Bathynotalia also shows about 22 pairs of terminal papillae on the pharynx, which if verified is many more than for any other Polynoidae.
Once surrounded, the mata mata turtles will open their mouths and contract their pharynx, causing a rush of water that pushes the prey into their mouth.
For the pharyngeal phase to work properly all other egress from the pharynx must be occluded—this includes the nasopharynx and the larynx. When the pharyngeal phase begins, other activities such as chewing, breathing, coughing and vomiting are concomitantly inhibited. 5) Closure of the nasopharynx The soft palate is tensed by tensor palatini (Vc), and then elevated by levator palatini (pharyngeal plexus—IX, X) to close the nasopharynx. There is also the simultaneous approximation of the walls of the pharynx to the posterior free border of the soft palate, which is carried out by the palatopharyngeus (pharyngeal plexus—IX, X) and the upper part of the superior constrictor (pharyngeal plexus—IX, X). 6) The pharynx prepares to receive the bolus The pharynx is pulled upwards and forwards by the suprahyoid and longitudinal pharyngeal muscles – stylopharyngeus (IX), salpingopharyngeus (pharyngeal plexus—IX, X) and palatopharyngeus (pharyngeal plexus—IX, X) to receive the bolus.
It generally occurs in perimenopausal women. Its identification and follow-up is considered relevant due to increased risk of squamous cell carcinomas of the esophagus and pharynx.
Pharynx is located immediately posterior to oral sucker. Acetabulum is located at anterior third level of body. Both female and male organs are found within the body.
The scale was developed to describe the disordered physiology of a person's swallow using the numbers 1-8. Other scales also exist for this purpose. A patient can also be assessed using videoendoscopy, also known as flexible fiberoptic endoscopic examination of swallowing (FFEES). The instrument is placed into the nose until the clinician can view the pharynx and then he or she examines the pharynx and larynx before and after swallowing.
Scanning electron micrographs showing morphological variation of bdelloid rotifers and their jaws. The coronal cilia create a current that sweeps food into the mouth. The mouth opens into a characteristic chewing pharynx (called the mastax), sometimes via a ciliated tube, and sometimes directly. The pharynx has a powerful muscular wall and contains tiny, calcified, jaw-like structures called trophi, which are the only fossilizable parts of a rotifer.
A long ciliated groove, or endostyle, runs along one side of the pharynx, and a projecting ridge along the other. The endostyle may be homologous with the thyroid gland of vertebrates, despite its differing function. The pharynx is surrounded by an atrium, through which water is expelled through a second, usually smaller, siphon. Cords of connective tissue cross the atrium to maintain the general shape of the body.
The mouth opens into a flattened pharynx. This consists of an in-folding of the body wall, and is therefore lined by the animal's epidermis. The pharynx typically runs for about one third the length of the body before opening into the gastrovascular cavity that occupies the remainder of the body. The gastrovascular cavity itself is divided into a number of chambers by mesenteries radiating inwards from the body wall.
Frederiksenia is a genus of bacteria from the family of Pasteurellaceae with one known species (Frederiksenia canicola). Frederiksenia canicola has been isolated from the pharynx of a dog.
Its inner end is abrupt, and at the left of the middle line is the opening of the oesophagus, very much smaller than the pharynx in diameter. The proboscis proper is very short (in spirits), only about one-sixth as long as the pharynx, and therefore, unless capable of great extension in the living state, probably can not be extruded from the oral opening. The pharynx of the specimen examined was partly filled with a dark-greenish matter, apparently of a mucous character, which showed no traces of organization, leading to the supposition that the pharynx was adapted to the engorgement of large masses of protoplasmic matter rather than the pursuit of living animals of a higher order, as in most Toxoglossa. The modification is analogous to that by which Turcicula, a derivative from a phytophagous stock, has become adapted to gorging itself witb large quantities of foraminifera, algae being absent from its habitat.
The middle ear of tetrapods is analogous with the spiracle of fishes, an opening from the pharynx to the side of the head in front of the main gill slits. In fish embryos, the spiracle forms as a pouch in the pharynx, which grows outward and breaches the skin to form an opening; in most tetrapods, this breach is never quite completed, and the final vestige of tissue separating it from the outside world becomes the eardrum. The inner part of the spiracle, still connected to the pharynx, forms the eustachian tube. In reptiles, birds, and early fossil tetrapods, there is a single auditory ossicle, the columella (that is homologous with the stapes, or "stirrup" of mammals).
Tegumental scales absent. Cephalic region with terminal and two bilateral poorly developed lobes; three pairs of head organs; pair of bilateral groups of cephalic-gland cells at level of pharynx. Two pairs of eyespots anterior to pharynx lacking lenses; chromatic granules small, irregular in outline; accessory granules usually absent in cephalic region. Pharynx subspherical; esophagus short to nonexistent; intestinal ceca blind, extending posteriorly into anterior portion of peduncle. Haptor with dorsal and ventral anteromedial lobes containing respective squamodiscs and lateral lobes having hook pairs 2–4, 6, 7. Squamodiscs subequal, with 12 or 13 concentric U-shaped rows of rodlets; innermost rows of ventral squamodisc (three) and dorsal squamodisc (two) closed, forming ovals.
Capitella teleta feeds on the enriched sediment in which it burrows. C. teleta has a complex, regionalized alimentary canal consisting of a foregut, midgut and hindgut. It ingests the sediment by everting its proboscis, which contains a ciliated, muscular dorsal pharynx. Presence of a dorsal pharynx is uncommon in marine polychaetes, and this adaptation may have evolved independently in the family Capitellidae through selective pressures on feeding mode in the benthic marine niche they occupy.
When prey is swallowed, it is liquefied in the pharynx by enzymes and by muscular contractions of the pharynx. The resulting slurry is wafted through the canal system by the beating of the cilia, and digested by the nutritive cells. The ciliary rosettes in the canals may help to transport nutrients to muscles in the mesoglea. The anal pores may eject unwanted small particles, but the most unwanted matter is regurgitated via the mouth.
The stapes is then attached to the inner ear, where the sound waves will be transduced into a neural signal. The middle ear is connected to the pharynx through the Eustachian tube, which helps equilibrate air pressure across the tympanic membrane. The tube is normally closed but will pop open when the muscles of the pharynx contract during swallowing or yawning. Mechanoreceptors turn motion into electrical nerve pulses, which are located in the inner ear.
The horse's respiratory system consists of the nostrils, pharynx, larynx, trachea, diaphragm, and lungs. Additionally, the nasolacrimal duct and sinuses are connected to the nasal passage. The horse's respiratory system not only allows the animal to breathe, but also is important in the horse's sense of smell (olfactory ability) as well as in communicating. The soft palate blocks off the pharynx from the mouth (oral cavity) of the horse, except when swallowing.
The retropharyngeal lymph nodes, from one to three in number, lie in the buccopharyngeal fascia, behind the upper part of the pharynx and in front of the arch of the atlas, being separated, however, from the latter by the Longus capitis. Their afferents drain the nasal cavities, the nasal part of the pharynx, and the auditory tubes. Their efferents pass to the superior deep cervical lymph nodes. They are in the retropharyngeal space.
Four eyespots immediately anterior to pharynx, lacking lenses; members of posterior pair slightly larger, closer together than those of anterior pair; accessory chromatic granules small, irregular in outline, usually absent in cephalic region. Pharynx ovate, muscular; esophagus short to nonexistent; intestinal ceca blind, extending posteriorly to peduncle, diverging posterior to testis. Peduncle broad. Haptor subtriangular, with dorsal and ventral anteromedial lobes containing respective squamodiscs and lateral lobes having hook pairs 2–4, 6, 7.
The family Dendrocoelidae is characterized by an unusual arrangement of the muscle layers of the pharynx. While in most planarians the inner musculature of the pharynx is composed of two muscle layers, one circular and one longitudinal, in Dendrocoelidae the circular and longitudinal fibers are intermingled, forming a mixed layer. Dendrocoelidae is the sister group of Kenkiidae. Both families have an anterior adhesive organ, which is considered a synapomorphy of the group.
Located at the anterior part of the worm is the funnel-shaped mouth that is connected to the pharynx which is larger than the buccal suckers, followed by the long wide oesophagus esophagus that is smaller in diameter compared to the pharynx. The esophagus then divides into intestinal crura, which extends further posteriorly. The cruca is divided into pouches, which extend between vitellaria. Vitallaria are glands that secrete yolk around the egg.
The Stylopharyngeus is the only muscle in the pharynx innervated by the glossopharyngeal nerve (CN IX) through branchial motor fibers that originate in the rostral part of the nucleus ambiguus.
Lancelets feed through a process of filter feeding using buccal cirri, velar tentacles, velum, wheel organ, Hatschek's pit, and the tracts in the pharynx called the endostyle and epibranchial groove.
Pharyngeal place of articulation A pharyngeal consonant is a consonant that is articulated primarily in the pharynx. Some phoneticians distinguish upper pharyngeal consonants, or "high" pharyngeals, pronounced by retracting the root of the tongue in the mid to upper pharynx, from (ary)epiglottal consonants, or "low" pharyngeals, which are articulated with the aryepiglottic folds against the epiglottis in the lower larynx, as well as from epiglotto- pharyngeal consonants, with both movements being combined. Stops and trills can be reliably produced only at the epiglottis, and fricatives can be reliably produced only in the upper pharynx. When they are treated as distinct places of articulation, the term radical consonant may be used as a cover term, or the term guttural consonants may be used instead.
In some, the pharyngeal part of the animal degenerates, and the abdomen breaks up into patches of germinal tissue, each combining parts of the epidermis, peritoneum, and digestive tract, and capable of growing into new individuals. In yet others, budding begins shortly after the larva has settled onto the substrate. In the family Didemnidae, for instance, the individual essentially splits into two, with the pharynx growing a new digestive tract and the original digestive tract growing a new pharynx.
There is no coelom (body cavity) and the interior of the animal is filled with poorly differentiated connective tissue. In the macrodasyidans, Y-shaped cells, each containing a vacuole, surround the gut and may function as a hydrostatic skeleton. The mouth is at the anterior end and opens into an elongated muscular pharynx with a triangular or Y-shaped lumen, lined by myoepithelial cells. The pharynx opens into a cylindrical intestine, which is lined with glandular and digestive cells.
To obtain enough food, an average ascidian needs to process one body-volume of water per second. This is drawn through a net lining the pharynx which is being continuously secreted by the endostyle. The net is made of sticky mucus threads with holes about 0.5 µm in diameter which can trap planktonic particles including bacteria. The net is rolled up on the dorsal side of the pharynx, and it and the trapped particles are drawn into the oesophagus.
Internal tensions pull the mouth into a slit-shape, and the ends of the slit lead into two grooves in the pharynx wall called siphonoglyphs. The coelenteron is subdivided by a number of vertical partitions, known as mesenteries or septa. Some of these extend from the body wall as far as the pharynx and are known as "complete septa" while others do not extend so far and are "incomplete". The septa also attach to the oral and pedal discs.
The esophagus of snakes is remarkable for the distension it undergoes when swallowing prey. In most fish, the esophagus is extremely short, primarily due to the length of the pharynx (which is associated with the gills). However, some fish, including lampreys, chimaeras, and lungfish, have no true stomach, so that the esophagus effectively runs from the pharynx directly to the intestine, and is therefore somewhat longer. In many vertebrates, the esophagus is lined by stratified squamous epithelium without glands.
A set of "valve cells" connects the pharynx to the intestine, but how this valve operates is not understood. After digestion, the contents of the intestine are released via the rectum, as is the case with all other nematodes. No direct connection exists between the pharynx and the excretory canal, which functions in the release of liquid urine. Males have a single-lobed gonad, a vas deferens, and a tail specialized for mating, which incorporates spicules.
The laryngotracheal groove is a precursor for the larynx and trachea. The rudiment of the respiratory organs appears as a median longitudinal groove in the ventral wall of the pharynx. The groove deepens and its lips fuse to form a septum which grows from below upward and converts the groove into a tube, the laryngotracheal tube. The cephalic end opens into the pharynx by a slit- like aperture formed by the persistent anterior part of the groove.
They get attached to the gut epithelial lining where they multiply rapidly by binary fission. (They are also capable of sexual reproduction by genetic hybridisation in the sandfly gut.) They then migrate back towards the anterior part of the digestive system such as pharynx and buccal cavity. This process is known as anterior station development, which is unique in Leishmania. A heavy infection of pharynx can be observed within 6 to 9 days after initial blood meal.
A stertor is a respiratory sound characterized by heavy snoring or gasping. It is caused by partial obstruction of airway above the level of the larynx and by vibrations of tissue of the naso-pharynx, pharynx or soft palate (this distinguishes it from stridor, which is caused by turbulent air flow below or in the larynx). It is low-pitched, non-musical, and occurs during the inspiratory phase only. In general terms it is a snoring or snuffly sound.
In sequence from the lowest within the body to the highest, these areas are the chest, the tracheal tree, the larynx itself, the pharynx, the oral cavity, the nasal cavity, and the sinuses.
In sequence from the lowest within the body to the highest, these areas are the chest, the tracheal tree, the larynx itself, the pharynx, the oral cavity, the nasal cavity, and the sinuses.
Having passed through the gill slits, the water enters an atrium surrounding the pharynx, then exits the body via the atriopore. Both adults and larvae exhibit a "cough" reflex to clear the mouth or throat of debris or items too large to swallow. In larvae the action is mediated by the pharyngeal muscles while in the adult animal it is accomplished by atrial contraction. The remainder of the digestive system consists of a simple tube running from the pharynx to the anus.
The mouth opens into a triradiate, muscular, sucking pharynx. The stylets are lost when the animal molts, and a new pair is secreted from a pair of glands that lie on either side of the mouth. The pharynx connects to a short esophagus, and then to an intestine that occupies much of the length of the body, which is the main site of digestion. The intestine opens, via a short rectum, to an anus located at the terminal end of the body.
The pharynx is muscular and lined by teeth. The anus is terminal, although in Priapulus one or two hollow ventral diverticula of the body-wall stretch out behind it. The nervous system consists of a nerve ring around the pharynx and a prominent cord running the length of the body with ganglia and longitudinal and transversal neurites consistent with an orthogonal organisation. The nervous system retains a basiepidermal configuration with a connection with the ectoderm, forming part of the body wall.
Lamellibrachian tube worms have no gut and gain nutrients from chemoautotrophic bacteria living inside them. Feeding structures in the mouth region vary widely, and have little correlation with the animals' diets. Many polychaetes have a muscular pharynx that can be everted (turned inside out to extend it). In these animals the foremost few segments often lack septa so that, when the muscles in these segments contract, the sharp increase in fluid pressure from all these segments everts the pharynx very quickly.
The epipharyngeal groove is a ciliated groove along the dorsal side of the inside of the pharynx in some plankton-feeding early chordates, such as Amphioxus. It helps to carry a stream of mucus with plankton stuck in it, through the pharynx into the gut to be digested. The subnotochordal rod or hypochord is a transient structure that appears ventral to the notochord in the heads of embryos of some vertebrates. Its appearance is stimulated by a chemical secreted by the notochord.
The pharyngeal arches give rise to a number of different structures in the skeletal, muscular and circulatory systems in a manner which varies across the vertebrates. Pharyngeal arches trace back through chordates to basal deuterostomes who also share endodermal outpocketings of the pharyngeal apparatus. Similar patterns of gene expression can be detected in the developing pharynx of amphioxus and hemichordates. However, the vertebrate pharynx is unique in that it gives rise to endoskeletal support through the contribution of neural crest cells.
Within the thin periciliary liquid layer the cilia beat in a coordinated fashion directed to the pharynx where the transported mucus is either swallowed or coughed up. This movement towards the pharynx is either upward from the lower respiratory tract or downwards from the nasal structures clearing the mucus that is constantly produced. Each cilium is about 7 μm in length, and is fixed at its base. Its beat has two parts the power stroke, or effector stroke, and the recovery stroke.
The repositioning of the larynx resulted in a longer cavity called the pharynx, which is responsible for increasing the range and clarity of the sound being produced. Other primates have almost no pharynx; therefore, their vocal power is significantly lower. Our species is not unique in this respect: goats, dogs, pigs and tamarins lower the larynx temporarily, to emit loud calls. Several deer species have a permanently lowered larynx, which may be lowered still further by males during their roaring displays.
The brain generally forms a ring round the pharynx (throat), consisting of a pair of ganglia (local control centers) above and in front of the pharynx, linked by nerve cords either side of the pharynx to another pair of ganglia just below and behind it. The brains of polychaetes are generally in the prostomium, while those of clitellates are in the peristomium or sometimes the first segment behind the prostomium. In some very mobile and active polychaetes the brain is enlarged and more complex, with visible hindbrain, midbrain and forebrain sections. The rest of the central nervous system, the ventral nerve cord, is generally "ladder-like", consisting of a pair of nerve cords that run through the bottom part of the body and have in each segment paired ganglia linked by a transverse connection.
They possess digestive systems, which allows them to process complex dietary items. They possess a protrusible pharynx to collect food.Martín-Durán J.M., Egger, B. (2012) Developmental diversity in free-living flatworms. Evodevo 3(7).
A study found that, "Increasing but moderate alcohol consumption in women was determined to be associated with an increased risk of cancers of the oral cavity and pharynx, esophagus, larynx, rectum, breast, and liver…".
In: Mesozoic Vertebrate Life. Ed.s Tanke, D. H., Carpenter, K., Skrepnick, M. W. Indiana University Press. Page 29. The Eustachian tubes, passages that connect the middle ear with the pharynx, are very complex in crocodilians.
The ventral surface is paler. The number of pigment granules observed in the histological sections are variable among individuals. They have two eye cups where head narrows. The pharynx is located posteriorly in the body.
The laryngeal cavity (cavity of the larynx) extends from the laryngeal inlet downwards to the lower border of the cricoid cartilage where it is continuous with that of the trachea."Pharynx" Emory University Anatomy Manual.
Uvularization is a secondary articulation of consonants or vowels by which the back of the tongue is constricted toward the uvula and upper pharynx during the articulation of a sound with its primary articulation elsewhere.
The mouth of polychaetes is located on the peristomium, the segment behind the prostomium, and varies in form depending on their diets, since the group includes predators, herbivores, filter feeders, scavengers, and parasites. In general, however, they possess a pair of jaws and a pharynx that can be rapidly everted, allowing the worms to grab food and pull it into their mouths. In some species, the pharynx is modified into a lengthy proboscis. The digestive tract is a simple tube, usually with a stomach part way along.
The siphonoglyph is a ciliated groove at one or both ends of the mouth of sea anemones and some corals. The siphonoglyph extends into a pharynx and is used to create currents of water into the pharynx. These water currents are important for respiration and maintenance of internal pressure. The presence of a siphonoglyph (or two siphonoglyphs) in several anthozoans (including species from the orders Zoantharia, Ceriantharia, Antipitharia, and Octocorallia) introduces an element of bilateral symmetry into the particular species' body plan (Beklemishev 1969).
Salps and doliolids have a transparent barrel-shaped body through which they pump water, propelling them through the sea and from which they extract food. The bulk of the body consists of the large pharynx. Water enters the pharynx through the large buccal siphon at the front end of the animal, and is forced through a number of slits in the pharyngeal wall into an atrium lying just behind it. From here, the water is expelled through an atrial siphon at the posterior end.
Instead, when the moray bites prey, it first bites normally with its oral jaws, capturing the prey. Immediately thereafter, the pharyngeal jaws are brought forward and bite down on the prey to grip it; they then retract, pulling the prey down the moray eel's gullet, allowing it to be swallowed. All vertebrates have a pharynx, used in both feeding and respiration. The pharynx arises during development through a series of six or more outpocketings called pharyngeal arches on the lateral sides of the head.
Choking was the fourth most common cause of unintentional injury-related death in the US in 2011. Deaths from choking most often occur in the very young (children under 2 years old) and in the elderly (adults over 75 years). Obstruction of the airway can occur at the level of the pharynx or the trachea. Foods that can adapt their shape to that of the pharynx (such as bananas, marshmallows, or gelatinous candies) can be a danger not just for children but for persons of any age.
The main symptoms of a hyoid bone fracture include pain when the affected person rotates their neck, trouble swallowing (dysphagia), and painful swallowing (odynophagia). Other symptoms can be crepitus or tenderness over the bone, suffocation when sticking out the tongue, dyspnea, dysphonia, and subcutaneous emphysema. On laryngoscope examination, lacerations on the pharynx, bruises, swelling, and/or hyoid bone fragments can be seen. If the hyoid bone is fractured, there is a high likelihood that the larynx, pharynx, mandible, and/or cervical spine may be injured as well.
Nose examination: The mucosa is usually boggy and edematous with clear mucoid secretions. The turbinates are congested and hypertrophic. Pharynx examination: Mucosal injection and lymphoid hyperplasia involving tonsils, adenoids and base of tongue may be seen.
Contaminated food can result in outbreaks, but this is rare. Of children with no signs or symptoms, 12% carry GAS in their pharynx, and, after treatment, approximately 15% of those remain positive, and are true "carriers".
Failure of treatment with penicillin is generally attributed to other local commensal organisms producing β-lactamase, or failure to achieve adequate tissue levels in the pharynx. Certain strains have developed resistance to macrolides, tetracyclines, and clindamycin.
DAHANCA 1 (1976-79, 153 pts) - BMV-induction chemotherapy and irradiation in St. 3-4 larynx and pharynx (phase 2) DAHANCA 2 (1979-85, 626 pts) - Randomized study of Misonidazole as hypoxic radiosensitizer in larynx and pharynx DAHANCA 3 (1979-87, 85 pts) - Predictive value of EBV titre in NPC. DAHANCA 4 (1988-90, 35 pts) - Randomized study of induction chemotherapy (5-FU, cisDDP) in oral cavity (part of Scandinavian trial, 461 pts) DAHANCA 5, 1986-90, 422 pts) - Randomized study of Nimorazole as hypoxic sensitizer. DAHANCA 6 (1992-99, 694 pts) - Randomized study of 5 vs 6 fx / week in glottic larynx DAHANCA 7 (1992-96, 791 pts) - Randomized study of 5 vs 6 fx / week (plus Nimorazole) in supraglottic, oral cavity and pharynx. DAHANCA 8 (1998-2003, 70 pts) - Vineralbine and 5-FU in advanced head and neck cancer (phase 2).
They reported there is sufficient evidence that paan chewing, even without tobacco, leads to tumours in the oral cavity and oesophagus, and that paan with added tobacco is a carcinogen to the oral cavity, pharynx and oesophagus.
Water passes from the mouth into the large pharynx, which is lined by numerous gill-slits. The ventral surface of the pharynx contains a groove called the endostyle, which, connected to a structure known as Hatschek's pit, produces a film of mucus. Ciliary action pushes the mucus in a film over the surface of the gill slits, trapping suspended food particles as it does so. The mucus is collected in a second, dorsal groove, known as the epipharyngeal groove, and passed back to the rest of the digestive tract.
Extracellular digestion in humans occurs from the mouth to the stomach The initial components of the gastrointestinal tract are the mouth and the pharynx, which is the common passage of the oral and nasal cavities. The pharynx leads to the esophagus, a muscular tube that delivers food to the stomach, where some preliminary digestion occurs; here, the digestion is extracellular. From the stomach, food passes to the small intestine, where a battery of digestive enzymes continue the digestive process. The products of digestion are absorbed across the wall of the intestine into the bloodstream.
FEESST is an outpatient procedure involving the passing of a thin flexible scope through the nose to the pharynx. The exam consisting of two parts. First part assesses sensation in the pharynx and airway protection. The airway protection is assessed by sending air-pulses to the throat area that is innervated by the vagus nerve, which is the region of the throat between the top of the vocal folds to the tip of the epiglottis in order to stimulate an airway protective reflex called the laryngeal adductor reflex (LAR).
The polyp is largely embedded within the colonial skeleton, with only the uppermost surface, including the tentacles and mouth, projecting about the surface. The mouth is slit-like, with a single ciliated groove, or siphonoglyph, at one side to help control water flow. It opens into a tubular pharynx that projects down into a gastrovascular cavity that occupies the hollow interior. The pharynx is surrounded by eight radial partitions, or mesenteries, that divide the upper part of the gastrovascular cavity into chambers, one of which connects to the hollow space inside each tentacle.
Cribbing, or crib biting, involves a horse grasping a solid object such as the stall door or fence rail with its incisor teeth, arching its neck, and contracting the lower neck muscles to retract the larynx caudally. This movement is coincided with an in-rush of air through the crico- pharynx into the oesophagus producing the characteristic cribbing sound or grunt. Usually, air is not swallowed but returns to the pharynx. It is considered to be an abnormal, compulsive behavior or stereotypy, and often labelled as a stable vice.
The endostyle is found in the pharynx. The food particles suspended in the water adhere to the mucus it produces. The filtered water is expelled through the gill slits, while the food and mucus is then passed, by the sweeping movement of cilia that coats the endostyle, through the pharynx of the organism and into the esophagus. The endostyle in larval lampreys (ammocoetes) metamorphoses into the thyroid gland in adults, and is regarded as being homologous to the thyroid gland in vertebrates due to its iodine-concentrating activity.
Posterior pair of eyespots lacking lenses, lying immediately anterior to pharynx (two specimens lacking one member of the pair); anterior pair usually absent, often represented by few poorly associated chromatic granules (one specimen with well-developed anterior eyespots lacking lenses); accessory chromatic granules small, irregular, usually anterior to posterior pair of eyespots. Pharynx with muscular wall; esophagus short to nonexistent; intestinal ceca blind, extending posteriorly to near anterior limit of peduncle. Peduncle broad, tapered posteriorly. Haptor with dorsal and ventral anteromedial lobes containing respective squamodiscs and lateral lobes having hook pairs 2–4, 6, 7.
A large pharynx occupies much of the interior and the surrounding muscular body wall is known as the mantle. The pharynx opens into a horizontally aligned gut which loops around to terminate near the atrial siphon. There are four bands of "stigmata" on the inside of the mantle, a fact that this species has in common with Perophora regina but which distinguishes it from several other western Atlantic members of the genus Perophora which have five bands. The outer surface of the zooid is known as a tunic and is gelatinous and translucent.
The palatine velum is slightly raised by the levator veli palatini and made tense by the tensor veli palatini; the palatopharyngeus muscles, by their contraction, pull the pharynx upward over the bolus of food and nearly come together, the uvula filling up the slight interval between them. By these means the bolus is prevented from passing into the nasopharynx; at the same time, the palatopharyngeus muscles form an inclined plane, directed obliquely downward and backward, along the under surface of which the bolus descends into the lower part of the pharynx.
The salpingopharyngeus muscle arises from the superior border of the medial cartilage of the pharyngotympanic tube (Eustachian tube), in the nasal cavity, making the posterior welt of the torus tubarius; it passes downward and blends with the posterior fasciculus of the palatopharyngeus muscle. The salpingopharyngeus is known to raise the pharynx and larynx during deglutition (swallowing) and laterally draws the pharyngeal walls up. In addition, it opens the pharyngeal orifice of the pharyngotympanic tube during swallowing. This allows for the equalization of pressure between the auditory canal and the pharynx.
Floor of pharynx of embryo between 35 and 37 days after fertilization. In the development of the embryo, at 3–4 weeks gestational age, the thyroid gland appears as an epithelial proliferation in the floor of the pharynx at the base of the tongue between the tuberculum impar and the copula linguae. The copula soon becomes covered over by the hypopharyngeal eminence at a point later indicated by the foramen cecum. The thyroid then descends in front of the pharyngeal gut as a bilobed diverticulum through the thyroglossal duct.
Two openings are found in the body wall: the buccal siphon at the top through which water flows into the interior, and the atrial siphon on the ventral side through which it is expelled. A large pharynx occupies most of the interior of the body. It is a muscular tube linking the buccal opening with the rest of the gut. It has a ciliated groove known as an endostyle on its ventral surface, and this secretes a mucous net which collects food particles and is wound up on the dorsal side of the pharynx.
About three quarters of leech species are parasites that feed on the blood of a host, while the remainder are predators. Leeches either have a pharynx that they can protrude, commonly called a proboscis, or a pharynx that they cannot protrude, which in some groups is armed with jaws. In the proboscisless leeches, the jaws (if any) of Arhynchobdellids are at the front of the mouth, and have three blades set at an angle to each other. In feeding, these slice their way through the skin of the host, leaving a Y-shaped incision.
Most fish exchange gases using gills on either side of the pharynx (throat), forming the Splanchnocranium; the Splanchnocranium being the portion of the skeleton where the cartilage of the cranium converges into the cartilage of the pharynx and its associated parts. Gills are tissues which consist of threadlike structures called filaments. These filaments have many functions and are involved in ion and water transfer as well as oxygen, carbon dioxide, acid and ammonia exchange. Each filament contains a capillary network that provides a large surface area for the exchange of gases and ions.
The pharynx (plural: pharynges) is the part of the throat behind the mouth and nasal cavity, and above the esophagus and larynx – the tubes going down to the stomach and the lungs. It is found in vertebrates and invertebrates, though its structure varies across species. In humans, the pharynx is part of the digestive system and the conducting zone of the respiratory system. (The conducting zone—which also includes the nostrils of the nose, the larynx, trachea, bronchi, and bronchioles—filters, warms and moistens air and conducts it into the lungs).
Since the anemone lacks a rigid skeleton, the contractile cells pull against the fluid in the gastrovascular cavity, forming a hydrostatic skeleton. The anemone stabilizes itself by flattening its pharynx which acts as a valve, keeping the gastrovascular cavity at a constant volume and making it rigid. When the longitudinal muscles relax, the pharynx opens and the cilia lining the siphonoglyphs beat, wafting water inwards and refilling the gastrovascular cavity. In general, the sea anemone inflates its body to extend its tentacles and feed, and deflates it when resting or disturbed.
However, bluegills rely heavily on sight to feed, especially in their foraging. Optimal vision occurs in the daylight hours. The mouth of the bluegill is very small and requires the use of the pharynx to suck in prey.
It then anastomoses with the ascending pharyngeal and occipital arteries. The pharyngeal branches of the inferior thyroid artery supply the pharynx. The glandular branches of the inferior thyroid artery are small branches which directly supply the thyroid gland.
Digestive tract is complete. Liver and pyloric glands are present. Respiration is with the help of branchial sac. Water enters the body from the region of mouth or branchial aperture, passes through the pharynx where food is picked up.
Cydippida is an order of comb jellies. They are distinguished from other comb jellies by their spherical or oval bodies, and the fact their tentacles are branched, and can be retracted into pouches on either side of the pharynx.
Cetacaine can and has been used for surgeries that include bronchi, ear, esophagus, larynx, mouth, nose, pharynx, rectal, and vaginal procedures. These procedures can include periodontal treatment, pre-probing, pre- scaling/root planning procedures, pre-injection, and laser dentistry.
Closely related to the gag reflex, in which food or other foreign substances are forced back out of the pharynx, swallowing generally pushes food through the digestive system into the stomach. This reflex in particular functions as a protective system for the upper respiratory tract as it not only forces the glottis to close, thereby preventing any substances getting into the airways, but also clears the pharynx of any residual substances by a swallow. This particular reflex is simply one of several aero digestive reflexes, including also the pharyngoglottal closure reflex (in which no swallowing occurs yet the glottis still closes) and the pharyngo-upper esophageal sphincter contractile reflex, which occurs mainly during gastroesophageal reflux episodes. All either forcibly close the glottis or allow the pharynx to remove particles into the digestive tract that may have been forced back up by both this tract and the upper respiratory tract.
In a third process of speech production, articulation, mobile and immobile structures of the face (articulators) adjust the shape of the mouth, pharynx and nasal cavities (vocal tract) as the vocal fold vibration sound passes through producing varying resonant frequencies.
The pharyngeal plexus (venous) is a network of veins beginning in the pharyngeal plexus on the outer surface of the pharynx, and, after receiving some posterior meningeal veins and the vein of the pterygoid canal, end in the internal jugular.
The anterior suckle is aspinous and is lacking the peduncle and is unusually small. The pharynx of this parasite is absent in its structure. The intestine also has a U shape in the anatomical structure. Posterior oesphageal swelling is also present.
The ideal location for pH measurement to confirm the diagnosis of the laryngopharyngeal reflux is the pharynx and new studies have focused on the development of a new pH sensor which can function in the challenging environment of the oropharynx.
Internally the body wall has numerous drop-shaped gonads (called polycarps) and the pharynx wall is perforated with many bands of stigmata (slits).Picton, B.E. & Morrow, C.C. (2015). Polycarpa pomaria (Savigny, 1816). [In] Encyclopedia of Marine Life of Britain and Ireland.
The morphology of a redia is elongated and cylindrical. It has a well-developed anterior pharynx and a long intestinal tract. Birth pore is found between first and second quarter of body. Lateral processes are near posterior tip of body.
The cercaria has two suckers: a ventral sucker and rounded subterminal sucker. Intestinal ceca bifurcate posterior to pharynx. Excretory bladders are located at posterior end of the cercarial body. The metacercarial cyst is elongated and oval-shaped with sensory papillae.
However, note the use of the first-person in "The Man Whose Pharynx Was Bad". Although Stevens held that "All of our ideas come from the natural world: Trees = Umbrellas",Kermode and Richardson, p. 903. his imagination revealed nature as enigmatic.
A group of land planarians of the species Endeavouria septemlineata feeding on a land snail, Bradybaena similaris Land planarians are carnivorous and most species are active predators, but some are mainly scavengers. All planarians feed through a muscular and eversible pharynx located slightly posteriorly to the middle of the body length and opening through a ventral mouth. The pharynx is an extensible tube-like organ bearing a complex muscular coat. It specializes as a penetration organ for those planarians that feed on arthropods; or as a grasping organ for those planarians that feed on other soft bodied invertebrates such as earthworms.
12) Esophageal peristalsis Like the pharyngeal phase of swallowing, the esophageal phase of swallowing is under involuntary neuromuscular control. However, propagation of the food bolus is significantly slower than in the pharynx. The bolus enters the esophagus and is propelled downwards first by striated muscle (recurrent laryngeal, X) then by the smooth muscle (X) at a rate of 3–5 cm/s. The upper esophageal sphincter relaxes to let food pass, after which various striated constrictor muscles of the pharynx as well as peristalsis and relaxation of the lower esophageal sphincter sequentially push the bolus of food through the esophagus into the stomach.
In most mammals, it is a long, flat structure contained largely within the mouth. It is attached at the rear to the hyoid bone, situated below the oral level in the pharynx. In humans, the tongue has an almost circular sagittal (midline) contour, much of it lying vertically down an extended pharynx, where it is attached to a hyoid bone in a lowered position. Partly as a result of this, the horizontal (inside-the-mouth) and vertical (down-the-throat) tubes forming the supralaryngeal vocal tract (SVT) are almost equal in length (whereas in other species, the vertical section is shorter).
The uniting character is the nervous system organization with a circumpharyngeal brain and somata–neuropil–somata pattern.The neuromuscular system of Pycnophyes kielensis (Kinorhyncha: Allomalorhagida) investigated by confocal laser scanning microscopy - EvoDevo The name derives from the position of the brain around the pharynx.
Aphthous ulcers involving the tongue, lips, palate, and pharynx. Pyoderma gangrenosum with large ulcerations affecting the back. As UC is believed to have a systemic (i.e., autoimmune) origin, people with UC may present with comorbidities leading to symptoms and complications outside the colon.
Raising wind starts from diaphragm. On the way it touches 8 vocal organs. Head the oral cavity, pharynx, larynx are the three places where they touch. Teeth, lip, tongue, nose and palate are the five places where they play before producing voice.
Prosphaerosyllis battiri shows a solitary, slender and acuminate acicula. The pharynx is long, spanning through approximately 4-5 segments. Its pharyngeal tooth is large and rhomboidal, located in its anterior half. Its proventricle spans 3 segments, with about 26 muscle cell rows.
The planarian has very simple organ systems. The digestive system consists of a mouth, pharynx, and a gastrovascular cavity. The mouth is located in the center of the underside of the body. Digestive enzymes are secreted from the mouth to begin external digestion.
The deep parotid lymph nodes are lymph nodes found below the parotid gland. The afferents of the subparotid glands drain the nasal part of the pharynx and the posterior parts of the nasal cavities. Their efferents pass to the superior deep cervical glands.
Paired openings connecting the pharynx to the outside run down the sides. These features are interpreted as possible primitive gill slits. Vetulicola rectangulata could be up to 7 cm long, and up to 4 cm in height (most specimens being 3.6 cm high).
Horses are unable to breathe through the mouth as the free apex of the rostral epiglottis lies dorsal to the soft palate in a normal horse. In ruminants the tonsils are a compact mass which point towards the lumen of the pharynx.
Although it had no jaws, the mouth of Sacabambaspis janvieri was lined with nearly 60 rows of small bony oral plates which were probably movable in order to provide more efficient suction-action through expansion and contraction of the oral cavity and pharynx.
The tonsillar branch of the facial artery ascends between the pterygoideus internus and styloglossus muscles, and then along the side of the pharynx, perforating the constrictor pharyngis superior, to ramify in the substance of the palatine tonsil and root of the tongue.
Other side effects of gold salts include kidney damage, itching rash, and ulcerations of the mouth, tongue, and pharynx. Approximately 35% of patients discontinue the use of gold salts because of these side effects. Kidney function must be monitored continuously while taking gold salts.
The pharyngeal veins begin in the pharyngeal plexus on the outer surface of the pharynx, and, after receiving some posterior meningeal veins and the vein of the pterygoid canal, end in the internal jugular. They occasionally open into the facial, lingual, or superior thyroid vein.
The pharynx is long, spanning through approximately 4 segments. Its pharyngeal tooth is small. Its proventricle is similar in length to the prostomium, spanning 3 segments, with about 18 muscle cell rows. Its pygidium is small, with 2 anal cirri, similar to its dorsal cirri.
Birds affected by this form usually recover within a few weeks. The second form is spread by inhalation of the virus and causes a diphtheritic membrane to form in the mouth, pharynx, larynx, and sometimes the trachea. The prognosis for this form is poor.
Digestion is a complex process controlled by several factors. pH plays a crucial role in a normally functioning digestive tract. In the mouth, pharynx and esophagus, pH is typically about 6.8, very weakly acidic. Saliva controls pH in this region of the digestive tract.
From the pharyngeal side, they are covered with a stratified squamous epithelium, whereas a fibrous capsule links them to the wall of the pharynx. Through the capsule pass trabecules that contain small blood vessels, nerves and lymphatic vessels. These trabecules divide the tonsil into lobules.
Riddle, D. L., & Albert, P. S. (1997). 26 Genetic and Environmental Regulation of Dauer Larva Development. Cold Spring Harbor Monograph Archive, 33, 739-768. Dauer larvae have constricted pharynx, double the thickness of a normal cuticle and increase of lipid droplets in their cytoplasm.
The characters which distinguish Austropolaria from other scale worm genera in the predominantly deep sea subfamily Macellicephalinae are seven pairs of papillae on the pharynx, nine pairs of reduced elytrophores, ventral cirri inserted subdistally on the neuropodia, and a ventral keel at the posterior end.
The genus Acanthozoon is physically characterized by a dorsal side with small raised papillae and ruffled edges. Their body is elongate oval. The species of this genus have a complex and very folded pharynx. They also have small pseudo-tentacles that prick up like ears.
It arises from the back part of the external carotid, near the commencement of that vessel, and ascends vertically between the internal carotid and the side of the pharynx, to the under surface of the base of the skull, lying on the longus capitis.
Most oligochaetes are detritus feeders, although some genera are predaceous, such as Agriodrilus and Phagodrilus. The digestive tract is essentially a tube running the length of the body, but has a powerful muscular pharynx immediately behind the mouth cavity. In many species, the pharynx simply helps the worm suck in food, but in many aquatic species, it can be turned inside out and placed over food like a suction cup before being pulled back in. The remainder of the digestive tract may include a crop for storage of food, and a gizzard for grinding it up, although these are not present in all species.
The patient must have an open airway—that is, an unobstructed passage that allows air to travel from the open mouth or uncongested nose, down through the pharynx and into the lungs. Conscious people maintain their own airway automatically, but those who are unconscious (with a GCS of less than 8) may be unable to do so, as the part of the brain that manages spontaneous breathing may not be functioning. Whether conscious or not, the patient may be placed in the recovery position, laying on their side. In addition to relaxing the patient, this can have the effect of clearing the tongue from the pharynx.
Branchiostoma floridae (the Florida lancelet) is a lancelet of the genus Branchiostoma. The genome of this species has been sequenced, revealing that among the chordates, the morphologically simpler tunicates are actually more closely related to vertebrates than lancelets. An embryo of a Florida amphioxus (Branchiostoma floridae) has a larval pharynx with gill slits that is asymmetrical. The gill slits in the larval pharynx form in the center of the embryo when it is in its earliest stage of development (primordial) meaning the thick layer of endoderm is overlapped by a thin layer; which aids into making the B. floridae asymmetrical from left to right.
As the salivary glands produce fluid and carbohydrate-digesting enzymes (mostly amylases), strong muscles in the pharynx pump fluid into the buccal cavity, lubricating the food like the salivarium does, and helping blood feeders, and xylem and phloem feeders. From there, the pharynx passes food to the esophagus, which could be just a simple tube passing it on to the crop and proventriculus, and then onward to the midgut, as in most insects. Alternately, the foregut may expand into a very enlarged crop and proventriculus, or the crop could just be a diverticulum, or fluid-filled structure, as in some Diptera species. Bumblebee defecating.
The body of Maotianshania is worm-like, up to 4 cm in length and 2 mm wide, having 3-4 rings (or annuli) per mm. Like its relatives Cricocosmia and Palaeoscolex, it is usually preserved as a very thin pink impression on the buff-colored matrix that is characteristic for the Maotianshan shales. The front of the body consists of a presumably protrusive and retractable elongate pharynx, armed with tooth- or spine-like outgrowths, arranged in rows and circles and which stand alternately between adjacent rings with the mouth at the very tip. Behind the pharynx is a collar-like "introvert" which also has rows of hooks, spines or scalids.
In sequence from the lowest within the body to the highest, these areas are the chest, the tracheal tree, the larynx itself, the pharynx, the oral cavity, the nasal cavity, and the sinuses. Research has shown that the larynx, the pharynx and the oral cavity are the main resonators of vocal sound, with the nasal cavity only coming into play in nasal consonants, or nasal vowels, such as those found in French. This main resonating space, from above the vocal folds to the lips is known as the vocal tract. Many voice users experience sensations in the sinuses that may be misconstrued as resonance.
A colony of Morchellium argus consists of a clump of vase- shaped zooids up to long, each supported by a conical stalk about wide, to which sand adheres. Each zooid has a buccal siphon with eight flaps and a tongue-like process underneath. This siphon opens into a large pharynx through which water is drawn into the interior, but the colony has a single exit siphon through which the water from several zooids is expelled. The zooids are translucent white, pale pink or red and there are four small red spots at the entrance to the pharynx, which distinguishes this tunicate from similar species.
Individuals of species of Microcotyle, like any typical polyopisthocotylean monogenean, have an anterior organ called prohaptor, which is mainly used for feeding and attachment. Although the prohaptor is not the primary attachment organ, it is used to anchor the body of the parasite while the opisthaptor is being repositioned. The opisthaptor is found in all Microcotyle species and it is an important attachment organ that allows these ectoparasites to latch onto their hosts. Located at the anterior part of the worm is the funnel-shaped mouth that is connected to the pharynx, followed by the esophagus that is smaller in diameter compared to the pharynx.
A sea cucumber atop gravel, feeding A pharynx lies behind the mouth and is surrounded by a ring of ten calcareous plates. In most sea cucumbers, this is the only substantial part of the skeleton, and it forms the point of attachment for muscles that can retract the tentacles into the body for safety as for the main muscles of the body wall. Many species possess an oesophagus and stomach, but in some the pharynx opens directly into the intestine. The intestine is typically long and coiled, and loops through the body three times before terminating in a cloacal chamber, or directly as the anus.
Some turbellarians have a simple pharynx lined with cilia and generally feed by using cilia to sweep food particles and small prey into their mouths, which are usually in the middle of their undersides. Most other turbellarians have a pharynx that is eversible (can be extended by being turned inside-out), and the mouths of different species can be anywhere along the underside. The freshwater species Microstomum caudatum can open its mouth almost as wide as its body is long, to swallow prey about as large as itself. Most turbellarians have pigment-cup ocelli ("little eyes"); one pair in most species, but two or even three pairs in others.
Gray's Anatomy of the Human Body, 20th ed. 1918. Coronal section of larynx and upper part of trachea. Sagittal section of nose mouth, pharynx, and larynx. The production of speech is a highly complex motor task that involves approximately 100 orofacial, laryngeal, pharyngeal, and respiratory muscles.
Beroe sp. swimming with open mouth, at left. This animal is 3–6 cm long. The Beroida, also known as Nuda, have no feeding appendages, but their large pharynx, just inside the large mouth and filling most of the saclike body, bears "macrocilia" at the oral end.
Expression is relatively low for c4orf21 compared to other proteins. Expression of c4orf21 is slightly elevated compared to its average expression in tissue in the hematopoietic and lymphatic systems, and is above average in the brain also. Lower averages exist in liver, pharynx, and skin tissue.
The pharyngeal plexus is a network of nerve fibers innervating most of the palate and pharynx. (Larynx, which is innervated by superior and recurrent laryngeal nerve from vagus nerve (CN X), is not included) It is located on the surface of the middle pharyngeal constrictor muscle.
The mouth is located between the proboscis and the collar. The trunk is the longest part of the animal. It contains the pharynx, which is perforated with gill slits (or pharyngeal slits), the esophagus, a long intestine, and a terminal anus. It also contains the gonads.
The six pairs of mesenteries are complete, in that their sheetlike membranes join the gastrodermis of the body wall with that of the pharynx, and are sterile, in that they do not bear gonads. The nematocysts consist of a mixture of spirocysts, basitrichs and microbasic p-mastigophors.
The evil cadejo ranges in size according to different tales in various regions. It lurks in graveyards and dark alleys, waiting to attack a passing victim. It has a distinctive smell of concentrated urine and burning sulphur. It rattles with a jerking motion, contracting its pharynx.
Paired oral tube glands are flanking the oral tube and discharge in its anterior part. The muscular pharynx is bulbous and narrows to the posterior; it contains the hook-shaped radula. The upper ramus is longer than the lower one. The radula formula could not be examined.
B. kewense is a known predator of earthworms. It immobilizes the prey using muscular movements and possibly toxins and then everts its pharynx, connecting it to the earthworm's body and beginning digestion. The digestion seems to be at least partially extracorporeal by means of a collagenolytic enzyme.
The blades of these compound chaetae possess short, marginal spines which are longer on the most dorsal chaetae. Sphaerosyllis bardukaciculata shows four simple chaetae on the posterior parapodia. It counts with a single acicula, bent distally to a right angle. The pharynx spans approximately three segments.
"The Man Whose Pharynx Was Bad" is a poem from Wallace Stevens's first book of poetry, Harmonium. First published in 1921, it is in the public domain in the United States.Buttel, p. 179. One point of entry into this poem is Stevens's attitude towards the weather.
The wing aspect ratio of this species is very high in comparison to many Microchiroptera, allowing these bats to fly long distances at fast speeds. The lips of these bats are large, perhaps allowing for focusing of the soundwaves that are emitted from their pharynx during echolocation.
In the trunk there are 25 segments (myomeres) with rearward- facing chevrons. There is a notochord, a pharynx and a digestive tract that may run all the way to the rear tip of the animal. The mouth cannot be clearly identified. There may be a pericardial cavity.
A squamous cell papilloma is a generally benign papilloma that arises from the stratified squamous epithelium of the skin, lip, oral cavity, tongue, pharynx, larynx, esophagus, cervix, vagina or anal canal. Squamous cell papillomas are typically associated with human papillomavirus (HPV) while sometimes the cause is unknown.
Spionids have a single pair of flexible feeding tentacles with grooves, arising directly from the prostomium. The mouth has no jaws and the pharynx is partly eversible. Some species have small eye spots and some a central sensory lobe. Some of the anterior segments paired gills.
Chest anatomy There are seven areas that may be listed as possible vocal resonators. In sequence from the lowest within the body to the highest, these areas are the chest, the tracheal tree, the larynx itself, the pharynx, the oral cavity, the nasal cavity, and the sinuses.
Cricopharyngeal spasms occur in the cricopharyngeus muscle of the pharynx. These spasms are frequently misunderstood by the patient to be cancer due to the 'lump in the throat' feeling (Globus pharyngis) that is symptomatic of this syndrome. Cricopharyngeal spasm is an uncomfortable but harmless and temporary disorder.
These are fully motile and capable of binary fission. Multiplication and migration towards thoracic midgut cause congestion of the pharynx and buccal cavity. Here they secrete promastigote secretory gel (PSG), which is composed of soluble acid phosphatase and phosphoglycoprotein. #After 6–9 days the promastigotes become metacyclic.
Villaret's syndrome combines ipsilateral paralysis of the last four cranial nerves (IX, X, XI, XII) and Horner syndrome (enophthalmos, ptosis, miosis). Sometimes cranial nerve VII is also involved. It may also involve the cervical ganglia of the sympathetic trunk. Paralysis is caused by a lesion in the retroparotid space, which is bounded posteriorly by the cervical vertebrae, superiorly by the skull near the jugular foramen, anteriorly by the parotid gland, laterally by the sternocleidomastoid muscle, and medially by the pharynx. The clinical features are dysphonia (paralysis of the vocal cords) and anesthesia of the larynx; dysphagia (difficulty in swallowing solids caused by paralysis of the superior constriction of the pharynx); paralysis of soft palate and fauces with anesthesia of these parts and of the pharynx; loss of taste in the posterior third of the tongue and tongue deviation to affected side; weakness of sternocleidomastoid (caused by paralysis of the sternocleidomastoid and trapezius), Horner’s syndrome (due to paralysis of the cervical sympathetic nerves), ipsilateral lower motor neurone facial weakness.
Some sources state that the palatoglossus is innervated by fibers from the cranial part of the accessory nerve (CN XI) that travel via the pharyngeal plexus.Section 3, Chapter 35 - Neck and Upper Aerodigestive Tract - Pharynx. In: Standring, S, editors. Gray's Anatomy: The Anatomical Basis of Clinical Practice, 39th Edition.
The postganglionic axons of the SCG innervate the internal carotid artery and form the internal carotid plexus. The internal carotid plexus carries the postganglionic axons of the SCG to the eye, lacrimal gland, mucous membranes of the mouth, nose, and pharynx, and numerous blood-vessels in the head.
Asexual stages in mollusc intermediate hosts feed mostly by direct absorption, although the redia stage found in some groups does have a mouth, pharynx and simple gut and may actively consume host tissue or even other parasites. Encysted metacercarial stages and free-living cercarial stages do not feed.
At the base of the pharynx, separated from the teeth by an unarmed region, sits a ring of spines. Behind this, at the front of the trunk, lies a series of hooks and spines, arranged in a quincunx pattern like the five dots on a domino or die.
The term "Macrostomum", meaning "big-mouthed", derives from the Greek μάκρος makros, "large", and στόμα, stoma, mouth. Relative to other turbellaria, Macrostomum species have indeed a long mouth, connected to the gut by a muscular pharynx which can expand, in certain species, to almost the width of the animal.
The adult body is elongate or occasionally oval or subglobular. sometimes with fine spines. The suckers are well-developed and usually at the anterior end. There is usually a prepharynx, the pharynx is muscular, the oesophagus, if present, is short and the caeca long, terminating near the posterior end.
No trace of the membrane is found in the adult; and the communication just mentioned must not be confused with the permanent isthmus faucium. The lips, teeth, and gums are formed from the walls of the stomodeum, but the tongue is developed in the floor of the pharynx.
Erinaceusyllis kathrynae shows dorsal simple chaetae from chaetiger 1, provided sometimes with short marginal spines. The ventral simple chaetae are slender and unidentate, arising from the midbody. Its acicula is solitary and acuminate, with a rather long and filiform tip. The pharynx is slender and spans approximately 3 segments.
The ventral simple chaetae on posterior parapodia are smooth, sigmoid and distally hooked, provided with a long subdistal spine. Its parapodia count with a single acicula each, bent to a right angle. The pharynx spans approximately 3 segments. Its pharyngeal tooth is probably located on its anterior rim.
The air is nearly sufficient to fill the lungs. This is followed by one cycle of buccal (mouth) pumping, which "tops off" the lungs, with the surplus air from the buccal pumping process discharged through the pharynx. According to one hypothesis, Devonian tetrapods may have inhaled in this way.
In some species, the pharynx secretes enzymes to digest the host's skin, allowing the parasite to feed on blood and cellular debris. Others graze externally on mucus and flakes of the hosts' skins. The name "Monogenea" is based on the fact that these parasites have only one nonlarval generation.
Inflammation of the epiglottis is known as epiglottitis. Epiglottitis is mainly caused by Haemophilus influenzae. A person with epiglottitis may have a fever, sore throat, difficulty swallowing, and difficulty breathing. For this reason, acute epiglottitis is considered a medical emergency, because of the risk of obstruction of the pharynx.
The palatopharyngeal arch (pharyngopalatine arch, posterior pillar of fauces) is larger and projects farther toward the middle line than the palatoglossal arch; it runs downward, lateralward, and backward to the side of the pharynx, and is formed by the projection of the palatopharyngeal muscle, covered by mucous membrane.
The ventral side is cream with the same marginal bands and a median brown longitudinal stripe. The pseudotentacles are somewhat pointed formed by folds of the anterior margin. The cerebral cluster of eyes is obscured due to dark pigment of the median line. Ruffle pharynx with elaborated folds.
The inner layer of the epidermis contains a nerve net, and myoepithelial cells that act as muscles. The internal cavity forms: a mouth that can usually be closed by muscles; a pharynx ("throat"); a wider area in the center that acts as a stomach; and a system of internal canals. These branch through the mesoglea to the most active parts of the animal: the mouth and pharynx; the roots of the tentacles, if present; all along the underside of each comb row; and four branches around the sensory complex at the far end from the mouth – two of these four branches terminate in anal pores. The inner surface of the cavity is lined with an epithelium, the gastrodermis.
Thus, in older healthy adults it is not uncommon for the bolus to be adjacent to an open airway by pooling or pocketing in the pharyngeal recesses, for more time than in younger adults. Whereas older adults demonstrate a delay in the onset of specific pharyngeal events, such as opening of the upper esophageal sphincter (UES) to permit bolus passage from the pharynx into the esophagus, an equally critical finding is that the range of UES opening is diminished. A scintigraphic study revealed increased pharyngeal residue with age, possibly related to the limited UES opening. Again, these findings indicate exposure of an open airway to material retained in the pharynx, increasing the risk for aspiration in older individuals.
Here, digestion starts as partially chewed food is broken down by saliva from the salivary glands. As the salivary glands produce fluid and carbohydrate-digesting enzymes (mostly amylases), strong muscles in the pharynx pump fluid into the buccal cavity, lubricating the food like the salivarium does, and helping blood feeders, and xylem and phloem feeders. From there, the pharynx passes food to the esophagus, which could be just a simple tube passing it on to the crop and proventriculus, and then on ward to the midgut, as in most insects. Alternately, the foregut may expand into a very enlarged crop and proventriculus, or the crop could just be a diverticulum, or fluid filled structure, as in some Diptera species.
The palatopharyngeal folds on each side of the pharynx are brought close together through the superior constrictor muscles, so that only a small bolus can pass. 7) Opening of the auditory tube The actions of the levator palatini (pharyngeal plexus—IX, X), tensor palatini (Vc) and salpingopharyngeus (pharyngeal plexus—IX, X) in the closure of the nasopharynx and elevation of the pharynx opens the auditory tube, which equalises the pressure between the nasopharynx and the middle ear. This does not contribute to swallowing, but happens as a consequence of it. 8) Closure of the oropharynx The oropharynx is kept closed by palatoglossus (pharyngeal plexus—IX, X), the intrinsic muscles of tongue (XII) and styloglossus (XII).
11) Bolus transits pharynx The bolus moves down towards the esophagus by pharyngeal peristalsis which takes place by sequential contraction of the superior, middle and inferior pharyngeal constrictor muscles (pharyngeal plexus—IX, X). The lower part of the inferior constrictor (cricopharyngeus) is normally closed and only opens for the advancing bolus. Gravity plays only a small part in the upright position—in fact, it is possible to swallow solid food even when standing on one’s head. The velocity through the pharynx depends on a number of factors such as viscosity and volume of the bolus. In one study, bolus velocity in healthy adults was measured to be approximately 30–40 cm/s.
The anatomy of catenulids is simple and lacks hard parts. The mouth is located anteriorly and connects to a simple pharynx and a simple intestine that forms a ciliated sac. They possess two pairs of nerve cords and often a statocyst, as well as a single protonephridium. The gonads are unpaired.
The upper teeth are embedded in the upper jaw and the lower teeth in the lower jaw, which articulates with the temporal bones of the skull. The lips are soft and fleshy folds which shape the entrance into the mouth. The buccal cavity empties through the pharynx into the oesophagus.
Harvestman eating a skink tail The foregut (stomodeum) develops from the ectoderm. It is called pharynx before passing through the central nervous system, and esophagus inside the CNS. Shortly afterwards it empties into the midgut. The midgut (mesenteron) is the largest organ in harvestmen and fills most of the opisthosoma.
The human mouth utilises the lips, tongue and jaws for articulation. The articulation of vowels and phrases produces clear speech that is intelligible. The resonance of speech is produced by the pharynx and some sinuses of the cranium. These sinuses contain air-filled cavities that are lined with mucus membranes.
In this case; the artery passes backward along the pterygoid canal with the corresponding nerve. It is distributed to the upper part of the pharynx and to the auditory tube, sending into the tympanic cavity a small branch which anastomoses with the other tympanic arteries. It can end in the oropharynx.
The pharyngeal branches of the glossopharyngeal nerve are three or four filaments which unite, opposite the Constrictor pharyngis medius, with the pharyngeal branches of the vagus and sympathetic, to form the pharyngeal plexus. Branches from this plexus perforate the muscular coat of the pharynx and supply its muscles and mucous membrane.
Most freshwater species are parthenogenetic. The smooth or complex cuticle has a variable number of adhesive tubes, and the pharyngeal lumen of Chaetonotids is Y-shaped. A valve may be present at the junction of the pharynx and midgut. The epidermis in most organisms in this order is partly syncytial.
The pharynx usually shows no papillae around its opening, but they are present in larger species. Its proventricle is long and wide, barrel-shaped, with thin muscle cell rows, counting with around 15 to 22. Mature males exhibit natatory chaetae, while females brood eggs dorsally by means of capillary notochaetae.
This is created by producing the air supply needed for phonation in the pharynx and creating a replacement for the glottis using the tongue and the upper alveolus, the palate, or the pharyngeal wall.Weinberg B, Westerhouse J. (1973). A study of pharyngeal speech. J Speech Hear Disord. 38(1):111-8.
Supraglottic techniques include the use of supraglottic tubes, such as oropharyngeal and nasopharyngeal airways, and supraglottic devises such as laryngeal masks. Common for all supraglottic devises are that they are introduced into the pharynx, ensuring the upper respiratory tract remains open, without passing through the glottis and thereby entering the trachea.
The gills of fish form a number of slits connecting the pharynx to the outside of the animal on either side of the fish behind the head. Originally there were many slits, but during evolution, the number reduced, and modern fish mostly have five pairs, and never more than eight.
Dugesia digestion tract consists of a central non-pigmented tubular pharynx. Like the other triclads, Dugesia's gut consists in three ramified branches. Each branch consists of ceca, which delivers the nutrients to the body. This worm has a sac digestive plan, that is, it does not have a separate opening for waste excretion.
The terminal lappet is present and bears two pairs of anchors. Also, two buccal suckers occur at the anterior extremity. The digestive organs include an anterior, terminal mouth, a pharynx, an oesophagus, and a posterior intestine with two lateral branches provided with numerous secondary branches. Each adult contains male and female reproductive organs.
The anterior or lingual surface of the epiglottis is curved forward, and covered on its upper, free part by mucous membrane which is reflected on to the sides and root of the tongue, forming a median and two lateral glossoepiglottic folds; the lateral folds are partly attached to the wall of the pharynx.
Thysanozoon nigropapillosum is quite common along the external reef in the shallow sub-tidal zone. It can swim by undulating and rhythmically contracting the body margins. It feeds on tunicates, using its mouth and large pharynx to engulf Didemnum spp., and later regurgitates food pellets containing the calcareous spicules present in their tunics.
Diuronotus aspetos is one of the largest chaetonotid gastrotrich with more than 500 μm length. The pharynx is approximately one third of the body length. The mouth forms a muzzle surrounded by a ciliary band connecting the ventral ciliated field. There are no eye spots but there are four to six cephalic cilia.
Wilhelm Dietz, older than the others, contributed paintings of the neck and pharynx during his two years on the project. Elfie von Siber painted facial muscles. The third volume, covering the head and neck, was released in 1952. At the time of his death, Pernkopf was hard at work on the fourth volume.
Cinctans have been hypothesized to be epibenthic suspension feeders, with a lifestyle similar to modern tunicates. They likely rested on the seafloor parallel to the current, with their mouth and porta oriented downstream. They likely fed by actively pumping water through their pharynx. Cinctans grew largely by the expansion of the plates.
The pharyngeal nerve is a small branch of the maxillary nerve, arising from the posterior part of the pterygopalatine ganglion. It passes through the palatovaginal canal with the pharyngeal branch of the maxillary artery, and is distributed to the mucous membrane of the nasal part of the pharynx, behind the auditory tube.
The pharynx spans approximately 4 segments. Its pharyngeal tooth is placed near the opening. Its proventricle is long and wide, barrel-shaped, spanning 3 to 4 segments, with 18-20 muscle cell rows. Its pygidium is semicircular, with 2 anal cirri, similar to its dorsal cirri but rather longer and with papillae.
The nucleus ambiguus controls the motor innervation of ipsilateral muscles of the soft palate, pharynx, larynx and upper esophagus. Lesions of nucleus ambiguus results in nasal speech, dysphagia, dysphonia, and deviation of the uvula toward the contralateral side. Preganglionic parasympathetics to the heart also flow through the external formation of the nucleus.
Sphaerosyllis goorabantennata does not show parapodial glands. The pharynx spans approximately 3 segments and is relatively slender. Its proventricle spans through 1 or 2 segments, with 15 muscle cell rows. Its pygidium is small, with a few small papillae and 2 anal cirri, which are similar to its dorsal cirri but longer.
Pharynx of Phlebotomus mascittii Adults are about 1.5–3.0 mm long and yellowish in colour, with conspicuous black eyes, and hairy bodies, wings, and legs. The oval lanceolate wings are carried erect on the humped thorax. Males possess long prominent genital terminalia known as claspers. Females have a pair of anal recti.
It may have continued into the reign of Commodus. Galen, who was in Rome when the plague spread to the city in 166,Haas, pp. 1093–1098. mentioned that 'fever, diarrhoea, and inflammation of the pharynx, along with dry or pustular eruptions of the skin after nine days' were among the symptoms.Murphy, Verity.
In some fish, capillary blood flows in the opposite direction to the water, causing countercurrent exchange. The gills push the oxygen-poor water out through openings in the sides of the pharynx. Some fish, like sharks and lampreys, possess multiple gill openings. However, bony fish have a single gill opening on each side.
As of 1999, no cases of S. cerevisiae-induced vaginitis in women, who worked in bakeries themselves, were reported in scientific literature. Some cases were linked by researchers to the use of the yeast in home baking. Cases of infection of oral cavity and pharynx caused by S. cerevisiae are also known.
The dorsal simple chaetae from chaetiger 1 are unidentate and show long marginal spines. Its ventral simple chaetae on the posterior parapodia are sigmoid, smooth and unidentate. Its acicula is solitary, with tips bent to a right angle. The pharynx spans approximately 3 segments and is relatively slender, its pharyngeal tooth located anteriorly.
The Chaetonotida is an order of gastrotrichs. They generally have a tenpin or bottle-like shape. Chaetonotids inhabit both freshwater and marine environments. They can be distinguished from other gastrotrichs by the absence of pores in the pharynx, and by the presence of adhesive glands at the posterior end of the animal only.
This coral is a hermaphrodite. Gametes are shed into the body cavity and pass through the mouths of the polyps into the sea. After fertilisation, the planula larvae are planktonic for a time. When sufficiently developed, they start developing tentacles, a pharynx and septa before settling on the sea bed and completing metamorphosis.
The greatest degree of pharyngealisation is found in the strident vowels of the Khoisan languages, where the larynx is raised, and the pharynx constricted, so that either the epiglottis or the arytenoid cartilages vibrate instead of the vocal cords. Note that the terms pharyngealized, epiglottalized, strident, and sphincteric are sometimes used interchangeably.
Neutral lipids are instead stored in the intestine, epidermis, and embryos. The epidermis corresponds to the mammalian adipocytes by being the main triglyceride depot. The pharynx is a muscular food pump in the head of C. elegans, which is triangular in cross- section. This grinds food and transports it directly to the intestine.
It differs in dogs, horses, and ruminants. In dogs a single duct connects the nasopharynx to the nasal cavity. The tonsils are a compact mass which point away from the lumen of the pharynx. In the horse the auditory tube opens into the guttural pouch and the tonsils are diffuse and raised slightly.
Neisseria gonorrhoeae is a sexually transmitted pathogen that causes gonorrhea, a sexually transmitted disease that can result in discharge and inflammation at the urethra, cervix, pharynx, or rectum. It can cause pelvic pain, pain on urination, penile and vaginal discharge, as well as systemic symptoms. It can also cause severe reproductive complications.
Terrazoanthus onoi is a species of uncertain validity (taxon inquirendum) of macrocnemic zoanthid first found in the Galapagos. It is potentially a junior synonym of Terrazoanthus patagonichus. It can be distinguished by its bright red oral disk colour, having about 32–40 tentacles, and having only basitrichs and mastigophores present in its pharynx.
Terrazoanthus sinnigeri is a species of uncertain validity (taxon inquirendum) of macrocnemic zoanthid first found in the Galapagos. It is potentially a junior synonym of Terrazoanthus patagonichus. It can be distinguished by commonly occurring on rubble and rocks on sandy bottoms, having about 30–36 tentacles, and numerous nematocysts in its pharynx.
This worm lives buried in the sediment with its head down and with its filamentary gills at the surface, presumably to enhance oxygen uptake. It is a detritivore, scooping up and swallowing quantities of mud with its eversible pharynx, and absorbing nutrients as the bulk of material passes along the long, convoluted gut.
Instead, the mouth is surrounded by cilia that pull strings of mucus containing food particles towards a series of grooves around the mouth. Digestive and circulatory systems of a regular sea urchin: a = anus ; m = madreporite ; s = aquifer canal ; r = radial canal ; p = podial ampulla ; k = test wall ; i = intestine ; b = mouth The lantern, where present, surrounds both the mouth cavity and the pharynx. At the top of the lantern, the pharynx opens into the esophagus, which runs back down the outside of the lantern, to join the small intestine and a single caecum. The small intestine runs in a full circle around the inside of the test, before joining the large intestine, which completes another circuit in the opposite direction.
There are also two buccal suckersslightly smaller than the pharynx at the anterior extremity. The digestive organs include an anterior, terminal mouth, a globular pharynx, and a posterior intestine with two branches provided with irregular outer and inner branches; the right branch ends at the posterior end the body proper while the left one extends into the haptor. Each adult contains male and female reproductive organs. The reproductive organs include a reniform genital atrium, surrounded by radiating muscle fibers and covered inside with short spines except for the median anterodorsal areas, an oval to elliptical unarmed vagina opening middorsally at the anterior end, a single ovary in form of an interrogation mark, 8-20 testes that occupy the whole postovarian intercecal field.
It forms the epithelial lining of the whole of the digestive tract except part of the mouth and pharynx and the terminal part of the rectum (which are lined by involutions of the ectoderm). It also forms the lining cells of all the glands which open into the digestive tract, including those of the liver and pancreas; the epithelium of the auditory tube and tympanic cavity; the trachea, bronchi, and alveoli of the lungs; the bladder and part of the urethra; and the follicle lining of the thyroid gland and thymus. The endoderm forms: the pharynx, the esophagus, the stomach, the small intestine, the colon, the liver, the pancreas, the bladder, the epithelial parts of the trachea and bronchi, the lungs, the thyroid, and the parathyroid.
Additionally, the larynx is pulled up with the pharynx under the tongue by stylopharyngeus (IX), salpingopharyngeus (pharyngeal plexus—IX, X), palatopharyngeus (pharyngeal plexus—IX, X) and inferior constrictor (pharyngeal plexus—IX, X). This phase is passively controlled reflexively and involves cranial nerves V, X (vagus), XI (accessory) and XII (hypoglossal). The respiratory center of the medulla is directly inhibited by the swallowing center for the very brief time that it takes to swallow. This means that it is briefly impossible to breathe during this phase of swallowing and the moment where breathing is prevented is known as deglutition apnea. 10) Hyoid elevation The hyoid is elevated by digastric (V & VII) and stylohyoid (VII), lifting the pharynx and larynx up even further.
A hagfish generally respires by taking in water through its pharynx, past the velar chamber, and bringing the water through the internal gill pouches, which can vary in number from five to 16 pairs, depending on species. The gill pouches open individually, but in Myxine, the openings have coalesced, with canals running backwards from each opening under the skin, uniting to form a common aperture on the ventral side known as the branchial opening. The esophagus is also connected to the left branchial opening, which is therefore larger than the right one, through a pharyngocutaneous duct (esophageocutaneous duct), which has no respiratory tissue. This pharyngocutaneous duct is used to clear large particles from the pharynx, a function also partly taking place through the nasopharyngeal canal.
The inferior ganglion of the glossopharyngeal nerve (petrosal ganglion) is a sensory ganglion. It is larger than and below the superior ganglion of the glossopharyngeal nerve. It is located within the jugular foramen. The pseudounipolar neurons of the inferior ganglion of the glossopharyngeal nerve provide sensory innervation to areas around the tongue and pharynx.
Their pharynx is completely develop and connected to the cecum of the small intestines. Their sucker(mouth) is covered with spikes and its covering the genital opening. This means, they share one hole for eating and reproduction. Their testes is located at the posterior of the parasite and the testes are side by side.
The cilia of the respiratory epithelium move the secreted mucus and particulate matter posteriorly towards the pharynx where it passes into the esophagus and is digested in the stomach. The nasal cavity also houses the sense of smell and contributes greatly to taste sensation through its posterior communication with the mouth via the choanae.
The pharyngeal tubercle is a part of the occipital bone of the head and neck. It is located on the lower surface of the basilar part of occipital bone, about 1 cm. anterior to the foramen magnum. The pharyngeal tubercle gives attachment to the fibrous raphe of the pharynx, also known as the pharyngeal raphe.
These results are attributable to thermal damage inflicted by the laser beam. The laser may induce progressive palatal fibrosis, accompanied by medial traction of the posterior tonsillar pillars i.e., scar tissue reduces the airspace in the pharynx leading to velopharyngeal insufficiency. The scar tissue can also make the airway more prone to collapse during sleep.
Blood meal digestion in ticks is similar in all species. The digestive system in both Ixodid and argasid ticks is histologically divided into foregut, midgut and hindgut. The foregut comprises the sucking pharynx and the oesophagus. The midgut contains a ventriculus with a valve, a variable number of blind diverticula (caeca), and a rectal tube.
In some fish, capillary blood flows in the opposite direction to the water, causing counter- current exchange. The gills push the oxygen-poor water out through openings in the sides of the pharynx. Some fish, like sharks and lampreys, possess multiple gill openings. However, bony fish have a single gill opening on each side.
S. hystrix can be distinguished from S. levantina by showing smooth or finely serrated posterior falcigers, even when the spine is present. Concomitantly, blades of the dorsalmost falcigers show anteroposterior gradation in length in hystrix, whereas in levantina they are of similar length throughout its body. S. hystrix also possesses a considerably narrower pharynx.
When a child is born with Möbius syndrome, there may be difficulty in closing the mouth or swallowing. The tongue may fasciculate (quiver) or be hypotonic (low muscle tone). The tongue may be larger or smaller than average. There may be low tone of the muscles of the soft palate, pharynx, and the masticatory system.
The epiglottis arises from the fourth pharyngeal arch. It can be seen as a distinct structure later than the other cartilage of the pharynx, visible around the fifth month of development. The position of the epiglottis also changes with ageing. In infants, it touches the soft palate, whereas in adults, its position is lower.
Animals with few sweat glands, such as dogs, accomplish similar temperature regulation results by panting, which evaporates water from the moist lining of the oral cavity and pharynx. Although sweating is found in a wide variety of mammals, relatively few (exceptions include humans and horses) produce large amounts of sweat in order to cool down.
A longer trachea is, however, found in some long-necked salamanders, and in caecilians. While there are irregular cartilagenous nodules on the amphibian trachea, these do not form the rings found in amniotes. The only vertebrates to have lungs, but no trachea, are the lungfish and the Polypterus, in which the lungs arise directly from the pharynx.
In mammalian development, the absence of fibronectin leads to defects in mesodermal, neural tube, and vascular development. Similarly, the absence of a normal fibronectin matrix in developing amphibians causes defects in mesodermal patterning and inhibits gastrulation. Fibronectin is also found in normal human saliva, which helps prevent colonization of the oral cavity and pharynx by pathogenic bacteria.
Acute tissue reaction occurs when several worms get lost during this migration and accumulate in other organs of the body. The juveniles migrate from the lung up the respiratory tract to the pharynx where they are swallowed. They begin producing eggs within 60–65 days of being swallowed. These are produced within the small intestine, where the juveniles mature.
The pharynx (the largest part of buccal mass) is so large, occupying almost the whole length of the visceral cavity. The esophagus enters to the buccal cavity dorsally in the anterior fourth. The stomach forms a simple elongated sac. The reproductive system is remarkable for extreme reduction of male organs and the absence of receptaculum seminis (spermatheca).
The family Monstrillidae is characterised by having a well-developed fourth pair of swimming legs, but a rudimentary or absent fifth pair. Adults have no oral appendages, and the mouth leads only to a short, blind pharynx. They also lack second antennae, but show large, multiramous and setatious antennulae. These antennulae are rigid and anteriorly oriented.
The digestive organs include an anterior, terminal mouth, a muscular pharynx, and a posterior intestine with two lateral blind-ending branches. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, with spines, a dorsal vagina, a single ovary, and a number of testes which are posterior to the ovary.
3D reconstruction of the digestive system of Pseudunela cornuta shows for example: mouth (mo), pharynx (ph), salivary glands (sgd, sgr, sgl) and digestive gland (dg, hepatopancreas). Digestive system: The mouth opening lies ventrally between the labial tentacles. The paired anterior pedal glands discharge ventral to the mouth opening to the exterior. The oral tube is long and not ciliated.
Macrostomidans are small (~0.5 to 5 mm in length), and generally highly transparent microturbellarians, usually round in cross section, and with only the largest forms being dorsoventrally flattened. They are distinguished from related animals by the possession of a simple pharynx and intestine, and a single pair of lateral nerve cords, and by the absence of a statocyst.
The presence of gill slits (in blue) in an acorn worm (left) and a tunicate (right). Pharyngeal slits are filter-feeding organs found among deuterostomes. Pharyngeal slits are repeated openings that appear along the pharynx caudal to the mouth. With this position, they allow for the movement of water in the mouth and out the pharyngeal slits.
The pharynx spans approximately 3-4 segments and is longer than the proventricle. Its pharyngeal tooth is conical and located on its anterior margin. Its proventricle is short and spans through 2-2.5 segments, with 13 muscle cell rows. Its pygidium is small and bilobed, with 2 long anal cirri, which are longer than the animal's median antenna.
The tongue is the primary propulsive agent for pumping food through the mouth, into the pharynx while bypassing the airway and through to the esophagus. Recent findings clearly reveal that an age-related change in lingual pressures is another contributing factor to presbyphagia. Healthy older individuals demonstrate significantly reduced isometric (i.e., static) tongue pressures compared with younger counterparts.
Upper gastrointestinal bleeding is from a source between the pharynx and the ligament of Treitz. An upper source is characterised by hematemesis (vomiting up blood) and melena (tarry stool containing altered blood). About half of cases are due to peptic ulcer disease (gastric or duodenal ulcers). Esophageal inflammation and erosive disease are the next most common causes.
EST Profile data shows the gene expression of the LRRN3 gene.Gene Expression data has shown that the LRRN3 gene is expressed at very high levels in humans, about 2.3 times the average gene. It is most highly expressed in brain, heart, and testes tissues. It is also slightly expressed in kidney, muscle, pharynx, placental, and thymus tissue.
Some species are considered air-breathing fishes because of their ability to breathe by highly vascularized buccopharyngeal pouches (pharynx modified for breathing air). They usually are active only at night. They feed on benthic invertebrates, especially larvae, and fishes. At least some of the species of the family Synbranchidae, that is, O. infernale, are sexually dimorphic.
The vagina includes a sclerotized part, which is a complex structure. The redescription by Kritsky, Bakenhaster & Adams in 2015 includes the following: Body dorsoventrally flattened. Tegument smooth, scales absent. Cephalic region broad, with two terminal and two bilateral poorly developed lobes, three bilateral pairs of head organs, pair of bilateral groups of cephalic-gland cells at level of pharynx.
These organs are probably of sensory nature, and are comparable to the lateral sense organs of capitellids. The mouth and cloacal opening are generally at opposite ends of the bottom surface. The former leads to a protrusible pharynx, from which the esophagus opens into a wide intestinal chamber with branching lateral diverticula. There appears to be no vascular system.
Watchful waiting does not rule out the possibility of repeated biopsies. If the lesion changes in appearance repeat biopsies are especially indicated. Since smoking and alcohol consumption also places individuals at higher risk of tumors occurring in the respiratory tract and pharynx, "red flag" symptoms (e.g. hemoptysis - coughing blood) often trigger medical investigation by other specialties.
The superior pharyngeal constrictor muscle is a muscle in the pharynx. It is the highest located muscle of the three pharyngeal constrictors. The muscle is a quadrilateral muscle, thinner and paler than the inferior pharyngeal constrictor muscle and middle pharyngeal constrictor muscle. The muscle is divided into four parts: A pterygopharyngeal, buccopharyngeal, mylopharyngeal and a glossopharyngeal part.
Illustration of the superior view of the larynx. Tissues lining laryngeal structures, including the vocal folds, may be damaged in LPR. LPR is often regarded as a subtype of GERD that occurs when stomach contents flow upward through the esophagus and reach the level of the larynx and pharynx. However, LPR is associated with a distinct presentation of symptoms.
The trunk of Oikopleura cophocerca is oval and slightly arched and a few millimetres in length. A mouth at one end opens into a funnel-shaped pharynx and the anus is half way along the ventral surface. The endostyle is small and equidistant between the mouth and the anus. The branched ovary lies between the two testes.
Particles can deposit in the nose, mouth, pharynx and larynx (the head airways region), deeper within the respiratory tract (from the trachea to the terminal bronchioles), or in the alveolar region.Hinds, 1999, p.233 The location of deposition of aerosol particles within the respiratory system strongly determines the health effects of exposure to such aerosols.Hinds, 1999, p.
The thyroid appears as an epithelial proliferation in the pharynx floor between the copula linguae and the tuberculum impar. This point later will be the foramen cecum. Later, the thyroid descends in front of the pharyngeal gut when it already has a belobed diverticulum shape. The thyroglossal duct keeps the thyroid joined to the tongue until it disappears.
The cilia are mounted on short transverse plates which are bioluminescent. It is the beating of the cilia in synchrony that allows the animal to swim and that gives it an iridescent appearance. The body is transparent and the comb rows milky white. The tentacles, sheaths and pharynx are also milky white, or dull orange in some individuals.
Metastasis to the thyroid is rare and represents 5.5 % of biopsied thyroid malignancies. It is commonly found with cancers originating from the breast, renal cell, lung, melanoma, and colon. Direct invasion from adjacent structures such as the pharynx, larynx, trachea, or oesophagus has been reported (Fig. 10). Metastatic disease has a non-specific appearance. Fig. 10.
Beta-defensin 3 is a protein that in humans is encoded by the DEFB3 gene. HBD-3 was first isolated from human lesional psoriatic scales. RT-PCR showed HBD-3 to be expressed highly in skin, trachea, tongue and tonsils, with lower levels found salivary glands, uterus, kidney, bone marrow, thymus, colon, stomach, adenoid, pharynx, and larynx.
Sloth bears lack lower central incisors and use their protusible lips for sucking up the termites on which they feed. The general dental formula for living bears is: . The structure of the larynx of bears appears to be the most basal of the caniforms. They possess air pouches connected to the pharynx which may amplify their vocalizations.
The diameter of the tube is not uniform throughout, being greatest at the pharyngeal opening, least at the junction of the bony and cartilaginous portions, and again increased toward the tympanic cavity; the narrowest part of the tube is termed the isthmus. The position and relations of the pharyngeal opening are described with the nasal part of the pharynx. The mucous membrane of the tube is continuous in front with that of the nasal part of the pharynx, and behind with that of the tympanic cavity; it is covered with ciliated pseudostratified columnar epithelia and is thin in the osseous portion, while in the cartilaginous portion it contains many mucous glands and near the pharyngeal orifice a considerable amount of adenoid tissue, which has been named by Gerlach the tube tonsil.
Reconstruction of Pambdelurion, a smaller relative known from much more complete remains. Reconstruction of Megadictyon, which may have been the bearer of the Omnidens mouth apparatus. Omnidens is only known from mouthparts. The preserved mouthparts would have formed a short muscular, potentially protrusible pharynx surrounded by circles of spiny sclerites, which were reminiscent of the scalids of priapulids, kinorhynchs, and loriciferans.
Just behind the tentacles is a group of small ossicles, calcareous stiffening plates, forming a short tube surrounding the pharynx. These provide a skeletal support for the muscles and internal organs. The skin is thick and leathery and the tube feet are scattered rather than being in orderly rows, protruding as soft finger- like projections from the body wall.Sclerodactyla briareus Invertebrate Anatomy OnLine.
The surrounding region does not show any sign or inflammation or any other constitutional signs. The disease usually shows spontaneous regression. One patient who was diagnosed with Keratosis Pharyngis had white spots on the base of the tongue and on the pharynx, and hurt a little when swallowing. No treatment was found to help, but the condition went away by itself eventually.
There are also two buccal suckers at the anterior extremity. The digestive organs include an anterior mouth, an oval pharynx, a simple oesophagus and a posterior intestine that bifurcates at or near level of genital pore in two lateral branches. The intestinal branches terminate in the distal portion of the haptor region. Each adult contains male and female reproductive organs.
A cephalochordate (from Greek: ', "head" and ', "chord") is an animal in the chordate subphylum, Cephalochordata. They are chordates with all 5 synapomorphies, the characteristics all chordates have during the larval or adulthood stages. These synapomorphies include: notochord, dorsal hollow nerve cord, endostyle, pharynx and post-anal tail. Cephalochordates are represented in modern oceans by the Amphioxiformes (lancelets, also known as amphioxus).
The vestibule is a passage for both food entrance and waste exit. The vestibular membranes push the food inwards, where they then congregate in a spindle-shaped food vacuole in the pharynx. Once the food vacuoles leave the non-ciliated pharyngeal tube, they become rounded. When the water flows outwards, contractile vacuoles and full food vacuoles may empty their contents.
Digestion is accomplished by means of a syncytium that forms a vacuole around ingested food. There are no epithelial cells lining the digestive vacuole, but there is sometimes a short pharynx leading from the mouth to the vacuole. All other bilateral animals (apart from tapeworms) have a gut lined with epithelial cells. As a result, the acoels appear to be solid- bodied.
The pharynx is the region of the vocal tract below the velum and above the larynx. Vowels may be made pharyngealized (also epiglottalized, sphincteric or strident) by means of a retraction of the tongue root. Vowels may also be articulated with advanced tongue root. There is discussion of whether this vowel feature (ATR) is different from the Tense/Lax distinction in vowels.
When feeding, the parasite attaches its anterior end to the fish with cephalic glands. It everts its pharynx through the mouth and releases a digestive solution with proteolytic enzymes which dissolves the salmon skin. Mucus and dissolved skin are then sucked into the gut. Attachment of many parasites can cause large wounds, damaging the epidermis of the host fish, which allows secondary infections.
None of the Platyzoa groups have a respiration or circulation system because of their small size, flat body or parasitic lifestyle. The Platyhelminthes and Gastrotricha are acoelomate. The other phyla have a pseudocoel, and share characteristics such as the structure of their jaws and pharynx, although these have been secondarily lost in the parasitic Acanthocephala. They form a monophyletic subgroup called the Gnathifera.
The voiceless pharyngeal fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is an h-bar, . In the transcription of Arabic, Hebrew and other scripts, it is often written , . Typically characterized as a fricative in the upper pharynx, it is often characterized as a whispered [h].
The nervous system is relatively simple. The brain consists of two ganglia, one on either side of the pharynx, connected by a commissure. From these lead a pair of nerve cords which run along either side of the body beside the longitudinal muscle bands. The primary sensory organs are the bristles and ciliated tufts of the body surface which function as mechanoreceptors.
Mucociliary action carries it down from the nasal passages, and up from the rest of the tract to the pharynx, with most of it being swallowed subconsciously. Sometimes in times of respiratory illness, or inflammation, mucus can become thickened with cell debris, bacteria, and inflammatory cells. It is then known as phlegm which may be coughed up as sputum to clear the airway.
The pharyngeal jaws of the moray eel Oral and pharyngeal jaws of a cichlid. The photographs show a Malawi eyebiter (Dimidiochromis compressiceps). Pharyngeal jaws are a "second set" of jaws contained within an animal's throat, or pharynx, distinct from the primary or oral jaws. They are believed to have originated as modified gill arches, in much the same way as oral jaws.
Mammal throats consist of two bones, the hyoid bone and the clavicle. The "throat" is sometimes thought to be synonymous for the fauces. It works with the mouth, ears and nose, as well as a number of other parts of the body. Its pharynx is connected to the mouth, allowing speech to occur, and food and liquid to pass down the throat.
Compound setae present. Notopodia are distinct (rarely reduced), usually with more flattened lobes, notosetae compound falcigers and/or spinigers (rarely notosetae absent). They have two prostomial antennae (absent in Micronereis). Their pharynx, when everted, clearly consists of two portions, with a pair of strong jaws on the distal portion and usually with conical teeth on one or more areas of both portions.
Tobacco is the greatest single cause of oral and pharyngeal cancer. It is a known multi-organ carcinogen, that has a synergistic interaction with alcohol to cause cancers of the mouth and pharynx by directly damaging cellular DNA. Tobacco is estimated to increase the risk of oral cancer by 3.4–6.8 and is responsible for approximately 40% of all oral cancers.
Detail of anterior region of L. abundans showing the small eyes and the clear halos around the dorsal eyes in the two most marginal stripes. Ventral view of L. abundans eating a woodlouse. The pharynx can be seen penetrating the venter of the woodlouse. Luteostriata abundans is a small to medium-sized land planarian with an elongate body and parallel margins.
Acute proliferative glomerulonephritis (post-streptococcal glomerulonephritis) is caused by an infection with streptococcus bacteria, usually three weeks after infection, usually of the pharynx or the skin, given the time required to raise antibodies and complement proteins.Marianne Gausche-Hill, Susan Fuchs, Loren Yamamoto, American Academy of Pediatrics, American College of Emergency Physicians. "APLS: The Pediatric Emergency Medicine Resource". Jones & Bartlett Learning; 2004.
The mucus mesh lies over two clefts in the pharynx, one on either side, rather than the much larger number of clefts found in most other tunicates. Furthermore, the Appendicularia retain the ancestral Chordate characteristics of having the clefts, and the anus open directly to the outside, and by the lack of the atrium and the atrial siphon found in related classes.
Stratified columnar epithelium is a rare type of epithelial tissue composed of column shaped cells arranged in multiple layers. Stratified columnar epithelia are found in the conjunctiva of the eye, in parts of the pharynx, anus, the uterus, and the male urethra and vas deferens. It is also found in the lobar ducts in salivary glands. The cells function in secretion and protection.
The pharynx is both a respiratory organ and a digestive one, filtering food from the water with the aid of a net of mucus slowly pulled across the slits by cilia. Doliolids and salps alternate between asexual and sexual life stages. Salp colonies can be several meters in length. Doliolids and salps rely on muscular action to propel themselves through surrounding sea water.
They do not have many teeth on the edges of their jaws, but they have heavy crushing tooth plates inside the pharynx. They habitually eat fish, octopuses, and crustaceans. Some species prefer to ambush their prey, while other species are active predators. Reports of fatal attacks on humans by the largest species, such as the giant grouper (Epinephelus lanceolatus) are unconfirmed.
This snail family is distinguished from other gastropods on the basis of several anatomical features: They have no dart apparatus (see love dart), the muscles which allow the eyes and pharynx to be retracted are united into a single band, and the jaws are ribbed.Pilsbry, Henry A. 1939. Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol.
The stomodeum is lined by ectoderm, and is separated from the anterior end of the fore-gut by the buccopharyngeal membrane. This membrane is devoid of mesoderm, being formed by the apposition of the stomodeal ectoderm with the fore-gut endoderm; at the end of the third week it disappears, and thus a communication is established between the mouth and the future pharynx.
"Otomy" means cutting into a part of the body; a gastrotomy would be cutting into, but not necessarily removing, the stomach. And also "pharyngo" means pharynx, "laryngo" means larynx, "esophag" means esophagus. Thus, "pharyngolaryngoesophagectomy" refers to the surgical removal of the three. The field of minimally invasive surgery has spawned another set of words, such as arthroscopic or laparoscopic surgery.
However, he later got another chance, when the band was reformed in 1999 and made one more album, Six Complete, in 2006. The songs on this album were penned by Robson and Jukka Tolonen. Robson has released five solo albums. He hopes to do at least one more, although in 2013 he was diagnosed with a cancer of the pharynx.
All basal vertebrates breathe with gills. The gills are carried right behind the head, bordering the posterior margins of a series of openings from the esophagus to the exterior. Each gill is supported by a cartilaginous or bony gill arch. The gills of vertebrates typically develop in the walls of the pharynx, along a series of gill slits opening to the exterior.
All basal vertebrates breathe with gills. The gills are carried right behind the head, bordering the posterior margins of a series of openings from the esophagus to the exterior. Each gill is supported by a cartilaginous or bony gill arch. The gills of vertebrates typically develop in the walls of the pharynx, along a series of gill slits opening to the exterior.
Surgical interventions can be given to improve functionality and correct cosmetic abnormalities. Osteotomy (bone cutting) and zetaplasty surgeries are used to cut away abnormal tissue growths at the piriform aperture around and pharynx to reduce airway obstruction. Rhinoplasty surgery is used to restore normal appearance and function of the nose. Heart surgery may also be required to close a patent ductus arteriosus.
Specimens are long and wide. The pharynx is long, and along with the gonopore is located in the hindmost third of the body. While it lacks eyes, the head has a pair of ciliated sensory organs approximately 140 µm back from the body's anterior end. The intestine extends into the brain and connects with the reproductive system via a genito- intestinal duct.
S. squamata (top centre), published in A monograph of the British marine annelids 1915. S. squamata lives in a mucous reinforced, vertical burrow in the sediment. It uses the long palps to feed on organic particles on the nearby seabed. The palps do not have a ciliated groove, so the particles are brought to the pharynx by a contraction of the whole palp.
Circulatory systems are absent in some animals, including flatworms. Their body cavity has no lining or enclosed fluid. Instead a muscular pharynx leads to an extensively branched digestive system that facilitates direct diffusion of nutrients to all cells. The flatworm's dorso-ventrally flattened body shape also restricts the distance of any cell from the digestive system or the exterior of the organism.
Its is warmed and moistened as it flows through the nose and pharynx. By the time it reaches the trachea the inhaled air's temperature is 37 °C and it is saturated with water vapor. On arrival in the alveoli it is diluted and thoroughly mixed with the approximately 2.5–3.0 liters of air that remained in the alveoli after the last exhalation.
Cases of mild or severe injury caused by rough and inexperienced use of laryngoscopes have been reported. These include minor damage to the soft tissues within the throat which causes a sore throat after the operation to major injuries to the larynx and pharynx causing permanent scarring, ulceration and abscesses if left untreated. Additionally, there is a risk of causing tooth damage.
Each pseudotentacle is formed by a broad simple fold of the anterior margins of the body. Also pharynx is formed by highly elaborated folds. This species is a simultaneous hermaphrodite, so it can make cross fecundation. There is a single male reproductive organ, that penetrates in any part of the mate's body, and the females have a short vagina directed backwards.
The spiny dogfish (pictured) is a known prey item of the bramble shark. Bramble shark embryo with external yolk sac. Sluggish in nature, the bramble shark feeds on smaller sharks (including the spiny dogfish, Squalus acanthias), bony fishes (including ling, catfishes, and lizardfishes), and crabs. The large size of its pharynx, relative to its mouth, suggests that it may capture prey by suction.
Notopterids have specialized swim bladders. The organ extends throughout the body and even into the fins in some cases. Although the swim bladder is not highly vascularised, it can absorb oxygen from air and also functions to produce sound by squeezing air through a narrow passage into the pharynx. At least some species prepare nests and guard the eggs until they hatch.
Vitamin pastilles Duovit Krka’s non-prescription products are aimed at preventing diseases and treating minor illnesses which do not require medical attention. They include products with an effect on the mouth cavity and the pharynx (Septolete), vitamin and mineral products (Pikovit and Duovit), medicines for cough and cold (Herbion syrups), a preparation promising improved memory and concentration (Bilobil), and an analgesic (Nalgesin S).
There are also two buccal suckers at the anterior extremity. The digestive organs include an anterior subterminal mouth, a pharynx, an oesophagus and a posterior intestine that bifurcates near the level of the genital atrium in two lateral branches. The intestinal branches are ramified medially and laterally and are not confluent posteriorly. Each adult contains male and female reproductive organs.
Symptoms that may indicate lung dysfunction include dyspnea (difficult breathing or shortness of breath), cough, and pharyngitis (inflammation of the pharynx, resulting in sore throat). Both hepatotoxicity and interstitial pneumonitis are said to be extremely rare events with bicalutamide. A few cases of photosensitivity have been reported with bicalutamide. Hypersensitivity reactions (drug allergy) like angioedema and hives have also uncommonly been reported in association with bicalutamide.
The inside of the pharynx was also lined with several rows of pharyngeal sclerites. Based on the large size of its preserved mouthparts, Omnidens is estimated to have reached a length of up to . Its overall appearance was likely similar to that of its close relative Pambdelurion. Spines preserved near the mouthparts of Omnidens may belong to frontal appendages like those of other stem-group arthropods.
This mollusc is at an early stage of becoming parasitic and has relatively few modifications to adopt this lifestyle. The ventral surface has a central mouth and adheres to the starfish by suction created by the muscular pharynx. Nourishment is derived from grazing the host's tissues and the suction eventually forms a lesion. On larger individuals, a proboscis is inserted deeper into the host's tissues.
Internally the anatomy offers several points of interest. Within the oral orifice is an immense " crop " or pharynx (22 mm. long in the specimen examined), which, from the deep longitudinal wrinkles of its surface, is evidently capable of being greatly distended. It has a smooth, rather tough, lining without any horny appendages, and is lubricated by the discharge of several muciparous glands of rather small size.
The movement of gas through the larynx, pharynx and mouth allows humans to speak, or phonate. Vocalization, or singing, in birds occurs via the syrinx, an organ located at the base of the trachea. The vibration of air flowing across the larynx (vocal cords), in humans, and the syrinx, in birds, results in sound. Because of this, gas movement is vital for communication purposes.
There are also two buccal suckers at the anterior extremity. The digestive organs include an anterior mouth, a pharynx, an oesophagus and a posterior intestine that bifurcates at about the level of genital pore in two lateral branches. The intestinal branches terminate at posterior end of body proper, the left limb extends along the haptor and reaches the lappet. Each adult contains male and female reproductive organs.
The number of collar spines varies between Echinostoma species, but there are usually between 27 and 51. These spines can be arranged in one or two circles around the sucker, and their arrangement may be a characteristic feature of an Echinostoma species. Echinostoma have a digestive system consisting of a pharynx, oesophagus and an excretory pore. Echinostoma are hermaphrodites, and have both male and female reproductive organs.
Solifuges are aggressive hunters and voracious opportunistic feeders and have been recorded as feeding on snakes, small lizards, birds, and rodents. Prey is located with the pedipalps and killed and cut into pieces by the chelicerae. The prey is then liquefied and the liquid ingested through the pharynx. Although they do not normally attack humans, their chelicerae can penetrate human skin, and painful bites have been reported.
Species in the family Kenkiidae are characterized by a thickened marginal epidermis, i.e., the epidermis of the body margins have larger cells provided with bigger rhabdites than the epidermis of the rest of the body. Kenkiidae species have the testicles situated anterior to the pharynx, feature also common in the Dugesiidae and Planariidae. They have an anterior adhesive organ, which is also found in the family Dendrocoelidae.
Pyura chilensis is a tunicate that somewhat resembles a mass of organs inside a rock. It is often found in dense aggregations in the intertidal and subtidal coast of Chile and Peru. It is a filter feeder that eats by sucking in seawater and filtering out microorganisms. P. chilensis has some basic characteristics common to chordates, such as the notochord and a perforated pharynx.
Nearly 800 species of gastrotrich have been described. Gastrotrichs have a simple body plan with a head region, with a brain and sensory organs, and a trunk with a simple gut and the reproductive organs. They have adhesive glands with which they can anchor themselves to the substrate and cilia with which they move around. They feed on detritus, sucking up organic particles with their muscular pharynx.
Lepidodermella squamata (Chaetonotida) Gastrotrichs vary in size from about in body length. They are bilaterally symmetrical, with a transparent strap-shaped or bowling pin-shaped body, arched dorsally and flattened ventrally. The anterior end is not clearly defined as a head but contains the sense organs, brain and pharynx. Cilia are found around the mouth and on the ventral surface of the head and body.
Digestive glands are found in this region of the gut, producing enzymes that start to break down the food. In stylet-bearing species, these may even be injected into the prey. No stomach is present, with the pharynx connecting directly to a muscleless intestine that forms the main length of the gut. This produces further enzymes, and also absorbs nutrients through its single-cell- thick lining.
The digestive organs include an anterior, terminal mouth, a pharynx, an oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous very spines, a medio-dorsal vagina , a single ovary and a number of testes which are posterior to the ovary.
Apart from the sensory and head cilia mentioned above, the ventral ciliation is continuous and dense, extending from the posterior edge of the mouth to the two-thirds of the pharynx. Then, the ciliary field separates in two bands running until the posterior part of the body. The very anterior part of the ciliary continuous dorsal field is wider than the more posterior part.
Killian's dehiscence (also known as Killian's triangle) is a triangular area in the wall of the pharynx between the cricopharyngeus and thyropharyngeus which are the two parts of the inferior constrictors(also see Pharyngeal pouch). It can be seen as a locus minoris resistentiae. Similar triangular area between circular fibres of cricopharyngeus and longitudinal fibres of esophagus is Lamier's triangle or Lamier-hackermann's area.
The digestive organs include an anterior, terminal mouth, a pharynx, an oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous very spines, a medio- dorsal vagina, a single tubular ovary and 15 testes which are posterior to the ovary.Hadi, R. (2009).
The digestive organs include an anterior, terminal mouth, a pharynx, an oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous very spines, a medio-dorsal vagina , a single ovary and a number of testes which are posterior to the ovary.
The digestive organs include an anterior, terminal mouth, a pharynx, an oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous very spines, a medio-dorsal vagina, a single ovary and a number of testes which are posterior to the ovary.
In mammals, taste stimuli are encountered by axonless receptor cells located in taste buds on the tongue and pharynx. Receptor cells disseminate onto different neurons and convey the message of a particular taste in a single medullar nucleus. This pheromone detection system deals with taste stimuli. The pheromone detection system is distinct from the normal taste system, and is designed like the olfactory system.
The digestive organs include an anterior, terminal mouth, a pharynx, an oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous very spines, a medio-dorsal vagina, a single ovary and a number of testes which are posterior to the ovary.
The digestive organs include an anterior, terminal mouth, a pharynx, an oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous very spines, a medio-dorsal vagina, a single ovary and a number of testes which are posterior to the ovary.
260px To collect the sample, the swab is inserted in the nostril and gently moved forward into the nasopharynx, a region of the pharynx that covers the roof of the mouth. The swab is then rotated for a specified period time to collect secretions, then the swab is removed and placed into a sterile viral transport media, which preserves the sample for the subsequent analysis.
The digestive organs include an anterior, terminal mouth, a pharynx, an oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous very spines, a medio- dorsal vagina, a single ovary and a number of testes which are posterior to the ovary.
Perophora viridis is a filter feeder. It draws water in through the buccal siphon and food particles such as bacteria and zooplankton get trapped in a mucus net that lines the pharynx. This gets rolled up and moved along by cilia and passes into the gut where digestion takes place. The anus is near the atrial siphon and waste products get swept out with the exhalent water.
The body ends with a single tail spine which formerly thought to be a pair of cerci. It also had well-developed pharynx and arthropod-like gut glands. The spiny frontal appendages suggest that it may have been a predator; however, fossils indicate total size of approximately 175 mm and, with a relatively small mouth, indicating that it would have been restricted to very small prey.
The same lesions are also present in pharynx, oesophagus, and on mucus-producing epithelia of the gut, from abomasum to rectum. Zebra-striped lesions on coecum and colon are said to be typical in some cases. Rarely, also petechiae are on the rumen mucosa.Tligui, Observations nécropsiques sur les premiers cas confirmés de peste des petits ruminants au Maroc, oral presentation, El Jadida, 31-07-2008.
Stages of the trematode life-cycle Adult worms are characterized by a flesh-colored body containing an egg-filled uterus that appears black by reflected light. The worms contain a cuticula with a subterminal oral sucker. They also contain a muscular pharynx, ventral sucker, and ceca. The gonads of the worm are arranged in a triangle, containing an ovary with an anterior and posterior testis.
The column can be up to across and including the extended tentacles. The scapus is generally reddish, orange or buff, the scapulus is grey, and the oral disc and tentacles are patterned in brown, cream and red. Internally, the pharynx has a single siphonoglyph (ciliated groove) and the gastrovascular cavity is subdivided by complete mesenteries, no incomplete mesenteries being present. The retractor muscles are strong.
Six cases of Spondweni virus infections have been well documented, and the signs and symptoms parallel closely to Zika fever. Symptoms included fever, headache, nausea, myalgia, greyish mucoid lining on the posterior pharynx, arthralgia, vertigo, conjunctivitis, maculopapular and pruritic rash, epistaxis, photophobia, vomiting, and disorientation.Wolfe MS, Calisher CH, McGuire K (1982) Spondweni virus infection in a foreign resident of Upper Volta. Lancet 2: 1306–1308.
The alimentary canal basically comprises a short narrow pharynx, a widened expansion, the crop and a poorly developed gizzard. After there is a midgut, that varies in dimensions between species, with a large amount of cecum, with a hingut, with varying lengths. There are typically four to six Malpighian tubules. The nervous system in beetles contains all the types found in insects, varying between different species.
Careful attention must be made while inserting an OPA. The user must avoid pushing the tongue further down the patient's throat. This is usually done by inserting the OPA with its curve facing cephalad and rotating it 180 degrees as you enter the posterior pharynx. Extraglottic devices are another family of supraglottic devices that are inserted through the mouth to sit on top of the larynx.
Food is ingested through the mouth and when swallowed passes first into the pharynx and then into the esophagus. The esophagus is thus one of the first components of the digestive system and the gastrointestinal tract. After food passes through the esophagus, it enters the stomach. When food is being swallowed, the epiglottis moves backward to cover the larynx, preventing food from entering the trachea.
In addition, the intermediate stages that live in snails reproduce asexually. Adults of different species infest different parts of the definitive host - for example the intestine, lungs, large blood vessels, and liver. The adults use a relatively large, muscular pharynx to ingest cells, cell fragments, mucus, body fluids or blood. In both the adult and snail-inhabiting stages, the external syncytium absorbs dissolved nutrients from the host.
Saccopharynx is a genus of deep-sea eels with large mouths, distensible stomachs and long, scaleless bodies. Commonly, these fish are called gulpers or gulper eels. It is the only genus in the family Saccopharyngidae, and is part of the derived lineage of the "saccopharyngiforms," which includes other mid-water eel species. The name is from Latin saccus meaning "sack" and Greek φάρυγξ, pharynx.
The type species, Vetulicola cuneata (Hou, 1987) has a body composed of two distinct parts of approximately equal length. The anterior part is rectangular with a carapace-like structure of four rigid cuticular plates, with a large mouth at the front end. The posterior section is slender, strongly cuticularised and placed dorsally. Paired openings connecting the pharynx to the outside run down the sides.
Diagnosis can be accomplished by clinical signs and direct exam or culture. Clinical signs of trichomoniasis include pronounced swallowing motions, excessive salivation and caseous-diphtheritic membranes of the mouth, crop and pharynx. Characteristic yellowish-white nodules in the oral cavity, esophagus and crop strongly suggest trichomoniasis. The infection is confirmed by finding the organism during microscopic examination of the greenish fluids, cheesy material or the lesion.
Macrodasys caudatus is an aquatic, microscopic worm (body length 0,06-3,0 mm), which can be found in marine waters. It is meiobenthic and lives between the sand grains and particles (interstitial) on the seabed. Macrodasys caudatus is acoelomate and swallows its food by powerful sucking action of the muscular pharynx. It is a detritivore and its diet consists of small protozoans, microalgae and bacteria.
Its diet consists of fishes, including luderick, scorpionfishes, basses, and rays, and various invertebrates, such as crabs, lobsters, and octopuses. Like all wobbegongs, it has a short mouth and broad pharynx, which allow it to suck up prey more easily. The species' prey have been known to wander right up to it, including near its mouth, sometimes nibbling its tentacles. The spotted wobbegong gathers in groups.
Food is moved down the gut by muscular contractions called peristalsis. Stylised diagram of insect digestive tract showing Malpighian tubule (Orthopteran type) # Stomatodeum (foregut): This region stores, grinds and transports food to the next region. Included in this are the buccal cavity, the pharynx, the oesophagus, the crop (stores food), and proventriculus or gizzard (grinds food). Salivary secretions from the labial glands dilute the ingested food.
Behavioural and olfactometer experiments indicate that crocodiles detect both air-borne and water-soluble chemicals and use their olfactory system for hunting. When above water, crocodiles enhance their ability to detect volatile odorants by gular pumping, a rhythmic movement of the floor of the pharynx. Crocodiles close their nostrils when submerged, so olfaction underwater is unlikely. Underwater food detection is presumably gustatory and tactile.
Holothurians in this order are characterised by ten to thirty much branched tentacles which are sometimes digitate. They also have ring structures composed of ten calcareous plates circling the pharynx. They have both retractor and introvert muscles which means they can retract the tentacles into the mouth when not feeding.An illustrated key to the sea cucumbers of the South Atlantic Bight Retrieved 2012-02-12.
In birds, the trachea runs from the pharynx to the syrinx, from which the primary bronchi diverge. Swans have an unusually elongated trachea, part of which is coiled beneath the sternum; this may act as a resonator to amplify sound. In some birds, the tracheal rings are complete, and may even be ossified. In amphibians, the trachea is normally extremely short, and leads directly into the lungs, without clear primary bronchi.
Keratosis Pharyngis is a medical condition where keratin grows on the surface of the pharynx, that is the part of the throat at the back of the mouth. Keratin is a protein that normally occurs as the main constituent of hair and nails. It is characterized by the presence of whitish-yellow dots on the pharyngeal wall, tonsils or lingual tonsils. They are firmly adherent and cannot be wiped off.
During the actual swallow, the camera is blocked from viewing the anatomical structures. A rigid scope, placed into the oral cavity to view the structures of the pharynx and larynx, can also be used, though this prevents the patient from swallowing. Other less frequently used assessments of swallowing are imaging studies, ultrasound and scintigraphy and nonimaging studies, electromyography (EMG), electroglottography (EGG)(records vocal fold movement), cervical auscultation, and pharyngeal manometry.
The facial nerve connects to taste buds in the anterior third of the tongue. The glossopharyngeal nerve connects to taste buds in the posterior two thirds of the tongue. The vagus nerve connects to taste buds in the extreme posterior of the tongue, verging on the pharynx, which are more sensitive to noxious stimuli such as bitterness. Flavor depends on odor, texture, and temperature as well as on taste.
The bat has the longest tongue (8.5 cm) relative to its body size of any mammal. Its tongue is 150% the size of its overall body length. By convergent evolution, pangolins, the giant anteater (Myrmecophaga tridactyla), and the tube-lipped nectar bat all have a tongue that is detached from their hyoid bones and extend past the pharynx deep into the thorax. This extension lies between the sternum and the trachea.
The secondary palate will endochondrally ossify to form the hard palate - the end-stage floor of the nasal cavity. During this time ectoderm and mesoderm of the frontonasal process produce the midline septum. The septum grows down from the roof of the nasal cavity and fuses with the developing palates along the midline. The septum divides the nasal cavity into two nasal passages opening into the pharynx through the definitive choanae.
The scalids of the first circle of the introvert form a so- called corona and are remarkably larger than the succeeding scalids. The gut is a simple tube, that often stands out as a darker central canal through the entire length of the body. The teeth, hooks and spines on the pharynx and introvert are sepia-colored, as are two small curved hooks at the very back- end of the body.
The segments are not externally recognizable, and the seventeen body segments each comprise five outer annulations. In the pharynx, there are one or two retractile stylets on each of the three jaws. Between the male and female sex opening of the hermaphrodite animals there are five or fewer annulations. On the ventral surface, there is a central accessory copulation pore next to the gonopores, but this is absent in young animals.
The pharynx is rounded and has a diameter of 60 to 74 μm and the esophagus is straight to a bit curved in form and about 60 μm long. The testes are oval to rounded and have a diameter of 111 to 240 μm. The uterus is large. Eggs are light brown, have thin shells, and are 46 to 51 μm long and 23 to 27 μm wide.
The margin is ruffled, rimmed with orange and fringed with small orange tentacles. It has a tubular pharynx and two tentacles at the front of its head, formed from folds of parts of the front of its body. Just behind these is its brain, with two elongated clusters of ocelli (eyespots) on either side. It usually grows to about in length and occasional individuals may reach twice this size.
The passive articulator is the surface on which the constriction is created. Constrictions made by the lips are called labials. Constrictions can be made in several parts of the vocal tract, broadly classified into coronal, dorsal and radical places of articulation. Coronal articulations are made with the front of the tongue, dorsal articulations are made with the back of the tongue, and radical articulations are made in the pharynx.
Aplidium solidum is a compound tunicate forming sheets or slabs up to 20 cm across on rocks and other hard substrates. The tunic is gelatinous but firm in consistency, 2 to 3 cm thick and a red or pink colour. The individual zooids are bright red, 12 mm long and arranged in small systems. There are usually 13 to 15 rows of gill-like perforations in the pharynx of each.
Food passes first into a pharynx and digestion occurs extracellularly in the gastrovascular cavity. Annelids have simple tube-like gets and the possession of an anus allows them to separate the digestion of their foodstuffs from the absorption of the nutrients. Many molluscs have a radula which is used to scrape microscopic particles off surfaces. In invertebrates with hard exoskeletons, various mouthparts may be involved in feeding behaviour.
If dermoid cysts appear on the medial aspect, the possibility of an encephalocele becomes greater and should be considered among the differential diagnoses. Other areas where a dermoid cyst may appear are the brain, scrotum and the pharynx. Dermoid cysts develop during pregnancy. They occur when skin cells and things like hair, sweat glands, oil glands or fatty tissue get trapped in the skin as a baby grows in the womb.
Choke is a condition in horses in which the esophagus is blocked, usually by food material. Although the horse is still able to breathe, it is unable to swallow, and may become severely dehydrated. A secondary condition, aspiration pneumonia, may also develop if food material and saliva accumulate in the pharynx, spilling into the trachea and into the lungs. Choke is one of the "top 10" emergencies received by equine veterinarians.
Taste records flavoring of food and other materials that pass across the tongue and through the mouth. Gustatory cells are located on the surface of the tongue and adjacent portions of the pharynx and larynx. Gustatory cells form on taste buds, specialized epithelial cells, and are generally turned over every ten days. From each cell, protrudes microvilli, sometimes called taste hairs, through also the taste pore and into the oral cavity.
The vagina includes a sclerotized part, which is a complex structure. The redescription by Kritsky, Bakenhaster & Adams in 2015 includes the following: Body flattened dorsoventrally. Tegumental scales with rounded anterior margins extending from peduncle anteriorly into posterior trunk. Cephalic region broad, with two terminal and two bilateral poorly developed cephalic lobes, three bilateral pairs of head organs, pair of bilateral groups of cephalic-gland cells at level of pharynx.
The anterior pituitary is derived from the ectoderm, more specifically from that of Rathke’s pouch, part of the developing hard palate in the embryo. The pouch eventually loses its connection with the pharynx, giving rise to the anterior pituitary. The anterior wall of Rathke's pouch proliferates, filling most of the pouch to form the pars distalis and the pars tuberalis. The posterior wall of the anterior pituitary forms the pars intermedia.
In adult humans, the larynx is found in the anterior neck at the level of the C3–C6 vertebrae. It connects the inferior part of the pharynx (hypopharynx) with the trachea. The laryngeal skeleton consists of six cartilages: three single (epiglottic, thyroid and cricoid) and three paired (arytenoid, corniculate, and cuneiform). The hyoid bone is not part of the larynx, though the larynx is suspended from the hyoid.
Sound is generated in the larynx, and that is where pitch and volume are manipulated. The strength of expiration from the lungs also contributes to loudness. Manipulation of the larynx is used to generate a source sound with a particular fundamental frequency, or pitch. This source sound is altered as it travels through the vocal tract, configured differently based on the position of the tongue, lips, mouth, and pharynx.
A 2014 in vitro study demonstrated that e-cigarette use of a "balsamic" flavor with no nicotine can activate the release of proinflammatory cytokine in lung epithelial cells and keratinocytes. Some additives may be added to reduce the irritation on the pharynx. The long-term toxicity is subject to the additives and contaminants in the e-liquid. Certain e-liquid flavorings contain diacetyl and acetyl propionyl which give a buttery taste.
The middle ear and its components develop from the first and second pharyngeal arches. The tympanic cavity and auditory tube develop from the first part of the pharyngeal pouch between the first two arches in an area which will also go on to develop the pharynx. This develops as a structure called the tubotympanic recess. The ossicles (malleus, incus and stapes) normally appear during the first half of fetal development.
Esophagitis, also spelled oesophagitis, is a disease characterized by inflammation of the esophagus. The esophagus is a tube composed of a mucosal lining, and longitudinal and circular smooth muscle fibers. It connects the pharynx to the stomach; swallowed food and liquids normally pass through it. Esophagitis can be asymptomatic; or can cause epigastric and/or substernal burning pain, especially when lying down or straining; and can make swallowing difficult (dysphagia).
Spawning and egg transfer takes place at the full moon over a four to five month period in summer. The larvae are brooded in a unique pharyngeal pouch, an extension of the pharynx constricted on either side of the developing larvae. It has been found that the immature planula larvae acquire their zooxanthellae from symbionts present in the pharyngeal pouch by invasion through their ectodermal surface during the brooding process.
It is also suspected that the Chromadorea may not be monophyletic as delimited here; at least the Monhysterida seem to be a distinct and far more ancient lineage than the rest. Members of this class' bodies usually have annules, their amphids elaborate and spiral, and they all have three esophageal glands. They usually live in marine sediments, although they can live elsewhere. They have a more sophisticated pharynx than most roundworms.
Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills that are protected under gill covers (operculum) on both sides of the pharynx (throat). Gills are tissues that are like short threads, protein structures called filaments. These filaments have many functions including the transfer of ions and water, as well as the exchange of oxygen, carbon dioxide, acids and ammonia.
The gills push the oxygen-poor water out through openings in the sides of the pharynx. Fish from multiple groups can live out of the water for extended time periods. Amphibious fish such as the mudskipper can live and move about on land for up to several days, or live in stagnant or otherwise oxygen depleted water. Many such fish can breathe air via a variety of mechanisms.
Antoni Jurasz (1847–1923) Antoni Stanisław Jurasz (24 November 1847 - 12 August 1923) was a Polish laryngologist who was a native of Spławie (Posen). He was the father of surgeon Antoni Tomasz Jurasz (1882–1961). He studied medicine at the universities of Greifswald and Würzburg, and in 1872 became a clinical assistant at Heidelberg. Here, he worked with pediatric illnesses, and diseases of the pharynx, nose and throat.
Little or no preparations are required for the study of the larynx, pharynx, and esophagus when studied alone. A thick barium mixture is swallowed in supine position and fluoroscopic images of the swallowing process are made. Then several swallows of a thin barium mixture are taken and the passage is recorded by fluoroscopy and standard radiographs. The procedure is repeated several times with the examination table tilted at various angles.
The pharyngeal arches, also known as visceral arches, are structures seen in the embryonic development of vertebrates that are recognisable precursors for many structures. In fish, the arches are known as the branchial arches, or gill arches. In the human embryo, the arches are first seen during the fourth week of development. They appear as a series of outpouchings of mesoderm on both sides of the developing pharynx.
The arches are numbered from 1 to 6, with 1 being the arch closest to the head of the embryo, and arch 5 existing only transiently. These grow and join in the ventral midline. The first arch, as the first to form, separates the mouth pit or stomodeum from the pericardium. By differential growth the neck elongates and new arches form, so the pharynx has six arches ultimately.
All the pharyngeal muscles of the fourth and sixth arches are innervated by the superior laryngeal and the recurrent laryngeal branches of the vagus nerve. These muscles include all the muscles of the palate (exception of the tensor veli palatini which is innervated by the trigeminal nerve), all the muscles of the pharynx (except stylopharyngeus which is innervated by the glossopharyngeal nerve), and all the muscles of the larynx.
Stridor (Latin for "creaking or grating noise") is a high-pitched extra- thoracic breath sound resulting from turbulent air flow in the larynx or lower in the bronchial tree. It is different from a stertor which is a noise originating in the pharynx. Stridor is a physical sign which is caused by a narrowed or obstructed airway. It can be inspiratory, expiratory or biphasic, although it is usually heard during inspiration.
Hermaphroditic; Corella willmeriana breeds throughout the year. The eggs are fertilized in the atrial chamber, where they develop into the free-swimming tadpole stage before released. Swimming larvae remain juveniles for <2 days before anterior adhesive organs allow for attachment to substratum. This triggers metamorphism, which entails enlargement of pharynx for filter feeding; the notochord is sucked back into body and is no longer present in adult form.
The water vascular system of sea cucumbers has no connection to the outside, and is thus filled with the internal coelomic fluid, rather than sea water. The madreporite is present, but lies within the body cavity, just below the pharynx. The stone canal is relatively short. The ring canal normally has one to four polian vesicles, but in the order Apodida, there may be as many as fifty.
Gastrulation occurs after the embryo reaches the 24-cell stage. C. elegans are a species of protostomes, so the blastopore eventually forms the mouth. Involution into the blastopore begins with movement of the endoderm cells and subsequent formation of the gut, followed by the P4 germline precursor, and finally the mesoderm cells, including the cells that eventually form the pharynx. Gastrulation ends when epiboly of the hypoblasts closes the blastopore.
The oral cavity connects posteriorly to the mouth and pharynx. Most mites have four pairs of legs, each with six segments, which may be modified for swimming or other purposes. The dorsal surface of the body is clad in hardened tergites and the ventral surface by hardened sclerites; sometimes these form transverse ridges. The gonopore (genital opening) is located on the ventral surface between the fourth pair of legs.
Commonly used medications can interact with anaesthetics, and failure to disclose such usage can increase the risk to the patient. An important aspect of pre-anaesthetic evaluation is an assessment of the patient's airway, involving inspection of the mouth opening and visualisation of the soft tissues of the pharynx. The condition of teeth and location of dental crowns are checked, and neck flexibility and head extension are observed.
OAS sufferers may have any of a number of allergic reactions that usually occur very rapidly, within minutes of eating a trigger food. The most common reaction is an itching or burning sensation in the lips, mouth, ear canal, or pharynx. Sometimes other reactions can be triggered in the eyes, nose, and skin. Swelling of the lips, tongue, and uvula, and a sensation of tightness in the throat may be observed.
An internal pelvic exam is not recommended for sexually immature or prepubescent girls due to the probability that internal injuries do not exist in this age group. An internal exam may be recommended if significant bloody discharge is observed, though. A complete pelvic exam for rape (anal or vaginal) is conducted. An oral exam is done if there have been injuries to the mouth, teeth, gums or pharynx.
This species can be infective, due to the speed at which they can reproduce, and for this reason they are not very popular aquarium anemones. Any tissue could potentially turn into an individual, making them quite prominent in the areas where they are found. To get from zygote to its adult life stage, A mutabilis will undergo metamorphosis. This beings with the morphogenesis of tentacles, septa, and pharynx.
The superior laryngeal nerve descends, by the side of the pharynx, behind the internal carotid artery, and divides into two branches —the external laryngeal nerve and the internal laryngeal nerve. The external laryngeal nerve is the smaller, external branch. It descends on the larynx, beneath the sternothyroid muscle, to supply the cricothyroid muscle. The external branch functions to tense the vocal cords by activating the cricothyroid muscle, increasing pitch.
Promoted to Major, he later acted as consulting surgeon to the 4th Army, and was awarded the OBE. After returning to England in December 1918, he established a worldwide reputation as a surgeon, pioneering the techniques of blood transfusion. His main interests lay in the surgical treatment of breast, mouth and pharynx afflictions. During the Second World War he served as a Surgeon Rear-Admiral in the Royal Navy.
The pharyngeal branch of the vagus nerve, the principal motor nerve of the pharynx, arises from the upper part of the ganglion nodosum, and consists principally of filaments from the cranial portion of the accessory nerve. It passes across the internal carotid artery to the upper border of the Constrictor pharyngis medius, where it divides into numerous filaments, which join with branches from the glossopharyngeal, sympathetic, and external laryngeal to form the pharyngeal plexus. From the plexus, branches are distributed to the muscles and mucous membrane of the pharynx (except the stylopharyngeus, which is innervated by the glossopharyngeal nerve (CN IX)) and the muscles of the soft palate, except the Tensor veli palatini, which is supplied by the nerve to tensor veli palatini, a branch of the nerve to medial pterygoid (which itself is a branch of the mandibular nerve - CNV/3). A minute filament descends and joins the hypoglossal nerve as it winds around the occipital artery.
This component of CN IX carries general sensory information (pain, temperature, and touch) from the skin of the external ear, internal surface of the tympanic membrane, the walls of the upper pharynx, and the posterior one-third of the tongue, anterior surface of the epiglottis, vallecula. ;Peripheral course :Sensory fibers from the skin of the external ear initially travel with the auricular branch of CN X, while those from the middle ear travel in the tympanic nerve as discussed above (CN IX visceral motor section). General sensory information from the upper pharynx and posterior one-third of the tongue travel via the pharyngeal branches of CN IX. These peripheral processes have their cell body in either the superior or inferior glossopharyngeal ganglion. ;Central course :The central processes of the general sensory neurons exit the glossopharyngeal ganglia and pass through the jugular foramen to enter the brainstem at the level of the medulla.
As the surgeon manipulates the instrument controls, the robotic instruments move deep inside the patient's mouth, and the operation is performed. Resection of tissue and suturing are accomplished with the advantages of the surgical robot at the back of the pharynx. The defining aspects of the TORS technique are: # The operation is performed with the technology of the surgical robot. # The robotic instruments are placed in the patient's mouth, rather than through an external incision.
Deep-throating can be difficult, due to the natural gag reflex triggered when the soft palate is touched. Different people have different sensitivities to the reflex, and with practice, some people learn to suppress it. Deep-throating leads to an entirely different kind of oral stimulation in comparison to regular fellatio: the tongue is immobilized during deep-throating and sucking becomes impossible; the glans penis can be intensely stimulated by the tightness of the pharynx.
Strident vowels (also called sphincteric vowels) are strongly pharyngealized vowels accompanied by an (ary)epiglottal trill, with the larynx being raised and the pharynx constricted.The Sounds of the World's Languages, by Peter Ladefoged and Ian Maddieson, Blackwell, 1996, pp. 310–311.The Phonetics and Phonology of Gutturals: Case Study from Ju/'Hoansi, by Amanda Miller- Ockhuizen, Routledge, 2003, p. 99. Either the epiglottis or the arytenoid cartilages thus vibrate instead of the vocal cords.
Velamen parallelum, which is typically less than long, can move much faster in what has been described as a "darting motion". Most Platyctenida have oval bodies that are flattened in the oral- aboral direction, with a pair of tentilla-bearing tentacles on the aboral surface. They cling to and creep on surfaces by everting the pharynx and using it as a muscular "foot". All but one of the known platyctenid species lack comb-rows.
In a behavior that researchers called "mouth-fighting," the worms approach each other headfirst with their mouths open. During these encounters, the pharynx muscles expand rapidly, forming a cavitation bubble that then collapses and produces a loud "pop" while the worms launch into each other. They may use this mouth-fighting to defend territory or living chambers from other worms. The production of this sound implies unique and extreme biomechanics for a soft-bodied organism.
It has valves within it that prevent blood from flowing the wrong way. The fluids bathing the internal organs is circulated by the heart; these fluids then filter through the organs and tissues. The pharynx, which is part of the gut, controlled by six muscles, pumps food into the oesophagus. Debris in the food, such as soil, is filtered before it enters the oesophagus and is collected in a tiny trap, the infrabuccal pocket.
Originally only early embryonic cells could be coaxed into changing their identity. Mature cells are resistant to changing their identity once they've committed to a specific kind. However, brief expression of a single transcription factor, the ELT-7 GATA factor, can convert the identity of fully differentiated, specialized non-endodermal cells of the pharynx into fully differentiated intestinal cells in intact larvae and adult roundworm Caenorhabditis elegans with no requirement for a dedifferentiated intermediate.
Maritigrella crozierae is common in the Indian River Lagoon where it feeds exclusively on the mangrove tunicate, Ecteinascidia turbinata. In other parts of its range it feeds on other sea squirts but seems to become habituated to the species it first ate. It everts its pharynx into a zooid and sucks out the interior tissues. A colony of mangrove tunicates is often home to two flatworms, each eating about 19 zooids a day.
The Eustachian tube, which opens near the velopharyngeal sphincter, connects the middle ear and nasal pharynx. Normally, the tube ensures aeration and drainage (of secretions) of the middle ear. Narrow and closed at rest, it opens during swallowing and yawning, controlled by the tensor veli palatini and the levator veli palatini (muscles of the soft palate). Children with a cleft palate have difficulties controlling these muscles and thus are unable to open the Eustachian tube.
The Seriata are an order of turbellarian flatworms. They are found in both freshwater and marine environments, and also include a number of species found in damp terrestrial conditions. Most are free-living, but the group includes the genus Bdelloura, which lives comensally on the gills of horseshoe crabs. Seriatans are distinguished from other related groups by the presence of a folded pharynx and of a number of diverticula arising from the intestine.
The digestive system of beetles is primarily adapted for a herbivorous diet. Digestion takes place mostly in the anterior midgut, although in predatory groups like the Carabidae, most digestion occurs in the crop by means of midgut enzymes. In the Elateridae, the larvae are liquid feeders that extraorally digest their food by secreting enzymes. The alimentary canal basically consists of a short, narrow pharynx, a widened expansion, the crop, and a poorly developed gizzard.
Later onset of conductive hearing loss may have an obvious cause such as an ear infection, trauma or upper respiratory tract infection or may have an insidious onset related to chronic middle ear disease, otosclerosis or a tumour of the naso-pharynx. Earwax is a very common cause of a conductive hearing loss which may present suddenly when the wax blocks sound from getting through the external ear canal to the middle and inner ear.
The epiglottal or pharyngeal plosive (or stop) is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is . Epiglottal and pharyngeal consonants occur at the same place of articulation. Esling (2010) describes the sound covered by the term "epiglottal plosive" as an "active closure by the aryepiglottic pharyngeal stricture mechanism" - that is, a stop produced by the aryepiglottic folds within the pharynx.
Edema of tongue, pharynx and larynx may develop as a side effect of local anaesthesia. This could be caused by a variety of reasons including trauma during injection, infection, an allergic reaction, haematoma or injection of irritating solutions such as cold-sterilisation solutions. Usually there is tissue swelling at the point of injection. This is due to puncturing of the vein which allows the blood to flow into loose tissues in the surrounding area.
Tarpon swimming One of the unique features of Megalops is the swim bladder, which functions as a respiratory pseudo-organ. This gas structure can be used for buoyancy, as an accessory respiratory organ, or both. In Megalops, this unpaired air-holding structure arises dorsally from the posterior pharynx. Megalops uses the swim bladder as a respiratory organ and the respiratory surface is coated with blood capillaries with a thin epithelium over the top.
The oncomiracidium has 4 pairs of lateral hooks. its alimentary canal consists only of a mouth, pharynx, and a simple sacculate intestine. The oncomiracidium develops into a post- oncomiracidial larvae, bilaterally symmetrical, that loses the eyes and 4 pairs of lateral hooks and develops 2 pairs of small hooks. The alimentary canal of this larvae is provided with two buccal suckers, an intestine differentiated into an oesophagus that bifurcates into two branches.
The food may be held or chewed by teeth located in the jaws, on the roof of the mouth, on the pharynx or on the gill arches. Litoria chloris calling Nearly all amphibians are carnivorous as adults. Many catch their prey by flicking out an elongated tongue with a sticky tip and drawing it back into the mouth where they hold the prey with their jaws. They then swallow their food whole without much chewing.
In addition to the two pairs of book lungs, other synapomorphies of Tetrapulmonata include a large postcerebral pharynx (reduced in Uropygi), prosomal endosternite with four segmental components, subchelate chelicerae, a complex coxotrochanteral joint in the walking legs, a pretarsal depressor muscle arising in the patella (convergent with Dromopoda, lost in Amblypygi), a pedicel formed, in part, by ventral elements of the second opisthomal segment and a spermatozoon axoneme with a 9+3 microtubule arrangement.
Owing to the position of the oil vacuole in the center of the tractus, the organ may also have implications for buoyancy, trim and locomotion. The nervous system is reasonably simple, consisting of a ganglionated nerve ring surrounding the pharynx. The dorsal ganglion is the largest, but nerves extend from all the ganglia along the length of the body. Chaetognaths have two compound eyes, each consisting of a number of pigment- cup ocelli fused together.
In marine and freshwater environments, gastrotrichs form part of the benthic community. They are detritivores and are microphagous, sucking dead or living organic material, diatoms, bacteria and small protozoa into their mouths by the muscular action of the pharynx. They are themselves eaten by turbellarians and other small macrofauna. Like many microscopic animals, gastrotrich locomotion is primarily powered by hydrostatics, but movement occurs through different methods in different members of the group.
In deuterostomes the mesoderm forms as evaginations of the developed gut that pinch off to form the coelom. This process is called enterocoely. Another feature present in both the Hemichordata and Chordata is pharyngotremy; the presence of spiracles or gill slits into the pharynx, which is also found in some primitive fossil echinoderms (mitrates).On the Origin of Phyla A hollow nerve cord is found in all chordates, including tunicates (in the larval stage).
The incubation period of CHV is six to ten days. CHV is transmitted to puppies in the birth canal and by contact with infected oral and nasal secretions from the mother or other infected dogs, but it is not spread through the air. The virus replicates in the surface cells of the nasal mucosa, tonsils, and pharynx. Low body temperature allows the virus to spread and infect the rest of the body.
The oral cavity is lined with cuticle, which is often strengthened with structures, such as ridges, especially in carnivorous species, which may bear a number of teeth. The mouth often includes a sharp stylet, which the animal can thrust into its prey. In some species, the stylet is hollow and can be used to suck liquids from plants or animals. The oral cavity opens into a muscular, sucking pharynx, also lined with cuticle.
Biologists need to ensure that specimens are completely relaxed before measurements are taken.Roberts, S. Larry & John Janovy, Jr. Foundations of Parasitology Monogeneans lack respiratory, skeletal, and circulatory systems and have no or weakly developed oral suckers.flatworm :: Annotated classification - Britannica Online Encyclopedia Like other flatworms, Monogenea have no true body cavity (coelom). They have a simple digestive system consisting of a mouth opening with a muscular pharynx and an intestine with no terminal opening (anus).
In vertebrate anatomy, the throat is the front part of the neck, positioned in front of the vertebra. It contains the pharynx and larynx. An important section of it is the epiglottis, separating the esophagus from the trachea (windpipe), preventing food and drinks being inhaled into the lungs. The throat contains various blood vessels, pharyngeal muscles, the nasopharyngeal tonsil, the tonsils, the palatine uvula, the trachea, the esophagus, and the vocal cords.
Adults are known to eat ascidians, or sea squirts. Eating is aided by the use of a protrusible pharynx located on the anterior of the organism. In the Muller's larval stage they have been found to eat microalgae using ciliary beat reversal to alter near- field flow and draw in food particles toward the mouth.Von Dassow, G., and Ellison, C.I. (2020) Large-scale Ciliary Reversal Meditates capture of individual algal prey by Miller's larva.
The body of this segmented worm is long, slender and tapering, with a smooth cuticle. The prostomium bears a pair of antennae, a pair of palps and two pairs of eyes. The first body segment is twice as long as the rest and bears the pharynx and four pairs of tentacular cirri. Segments two and three have uniramous parapodia (unbranched lateral lobes bearing bristles) while the remaining segments bear biramous (two-lobed) parapodia.
An upper respiratory tract infection (URTI) is an illness caused by an acute infection, which involves the upper respiratory tract, including the nose, sinuses, pharynx, or larynx. This commonly includes nasal obstruction, sore throat, tonsillitis, pharyngitis, laryngitis, sinusitis, otitis media, and the common cold. Most infections are viral in nature, and in other instances, the cause is bacterial. URTIs can also be fungal or helminthic in origin, but these are less common.
Coblation tonsillectomy is a surgical procedure in which the patient's tonsils are removed by destroying the surrounding tissues that attach them to the pharynx. It was first implemented in 2001. The word coblation is short for ‘controlled ablation’, which means a controlled procedure used to destroy soft tissue. This procedure uses low temperature radio frequency during the operation, which was found to cause less pain for the patient than previous technologies used for tonsillectomy.
The ventral surface is also spotted with dark pigment, but less distinctly so. Like other members of its family, P. mucosa has a reversible pharynx which can be turned inside out and which is used to catch prey or engulf food fragments. It has no jaws. The head has a pair of antennae at the front, a central antenna known as a "nuchal papilla" a pair of eyes and a pair of palps underneath.
The eyes were particularly shielded. Earlier chordates used their gills for both respiration and feeding, whereas ostracoderms used their gills for respiration only. They had up to eight separate pharyngeal gill pouches along the side of the head, which were permanently open with no protective operculum. Unlike invertebrates that use ciliated motion to move food, ostracoderms used their muscular pharynx to create a suction that pulled small and slow moving prey into their mouths.
Prior to Gussenbauer's method, attempts at pancreatic surgery yielded negative results. Gussenbauer's external drainage procedure represented the first safe and effective solution for pancreatic cysts, and was widely used until the 1950s. Following Billroth's first successful laryngectomy on 31 December 1873, Gussenbauer created an external vocal prosthesis (artificial larynx) for the patient. It was a mechanism with a vibrating reed that was inserted into a fistula from a tracheostomy tube to the pharynx.
As in other ctenophores, from the main stomach a network of channels branch through the mesogloea. Some of these have blind ends and others link up. They supply nutrients to the most active parts of the animal, the mouth, pharynx, combs of cilia and the sensory organs at the hind end of the body. Each comb plate has its own meridional canal situated directly beneath it and a ring of channels surround the mouth.
Hypopharyngeal cancer is a disease in which malignant cells grow in the hypopharynx (also known as the laryngopharynx) the area where the larynx and esophagus meet.National Cancer Institute. General Information About Hypopharyngeal Cancer It first forms in the outer layer (epithelium) of the hypopharynx (last part of the pharynx), which is split into three areas. Progression of the disease is defined by the spread of cancer into one or more areas and into deeper tissues.
Many rodents such as voles and guinea pigs, but not mice, as well as leporidae like rabbits, have continuously growing molars in addition to incisors. Teeth are not always attached to the jaw, as they are in mammals. In many reptiles and fish, teeth are attached to the palate or to the floor of the mouth, forming additional rows inside those on the jaws proper. Some teleosts even have teeth in the pharynx.
Macrostomum rostratum is colourless and between in length. There are a pair of small eyes at the anterior end and a longitudinal-slit mouth on the ventral surface just behind these. A short pharynx leads from the mouth to a simple gut. Also on the ventral surface, the female gonopore, which is shaped like a rosette, is in front of the male gonopore and penis which are half way along the flatworm.
When above water, crocodiles enhance their ability to detect volatile odorants by gular pumping, a rhythmic movement of the floor of the pharynx. The well-developed trigeminal nerve allows them to detect vibrations in the water (such as those made by potential prey). The tongue cannot move freely but is held in place by a folded membrane. While the brain of a crocodilian is fairly small, it is capable of greater learning than most reptiles.
Acorn worms continually form new gill slits as they grow in size, with some older individuals having more than a hundred on each side. Each slit consists of a branchial chamber opening to the pharynx through a U-shaped cleft and to the exterior through a dorso-lateral pore (see diagram below). Cilia push water through the slits, maintaining a constant flow. The tissues surrounding the slits are well supplied with blood sinuses.
Cephalodiscus and Atubaria have a single pair of gill slits in the pharynx, although Rhabdopleura has none. Development of pterobranchs have been studied only in Rhabdopleura from Plymouth (Rhabdopleura compacta) and from Bermuda (Rhabdopleura normani). Both of these species are dioecious, with the fertilised egg hatching to produce a free- swimming ciliated larva. Despite the close relationship between the two groups, the larva does not resemble that of the acorn worms; they are "planula-like".
An innovation of ostracoderms was the use of gills not for feeding, but exclusively for respiration. Earlier chordates with gills used them for both respiration and feeding. Ostracoderms had separate pharyngeal gill pouches along the side of the head, which were permanently open with no protective operculum. Unlike invertebrates that use ciliated motion to move food, ostracoderms used their muscular pharynx to create a suction that pulled small and slow moving prey into their mouths.
The larynx, or voicebox, is originally high in the throat which allows the baby to continue to breathe while swallowing. It descends during the first year of life, allowing the pharynx to develop and facilitates the production of adult-like speech sounds.Naomi S. Baron, Growing up with Language: How Children Learn to Talk (Reading, MA: Addison-Wesley, 1992), p. 41-43, Reduplicated babbling (such as bababa) involves a rhythmic opening and closing of the jaw.
Anteriorly, the parapodium exhibit two aciculae, one distally bent at a right angle, with an acuminate tip, the other being straight and blunt; posterior parapodium shows only one acicula as previously described. Its pharynx occupies three chaetigers, with a width spanning more than ¾ of the width of the proventricle. Its pharyngeal tooth is located on its anterior margin, surrounded by a crown of soft papillae. The proventricle possesses 15 to 17 muscle cell rows.
For example, the pharynx as well as the body of the parasite are distinctly larger in Oregon than in North Carolina. The reverse pattern is observed on the east coast for uterine eggs, which are larger on the west coast. In snails, there is also a higher rate of infection in female snails than in males. Research on the life history traits of the parasites have been performed with hamsters and frogs as model species.
This short amount of time per bout is achieved by this finch's drinking method. It swallows the water it gets while its bill tip is still submerged, unlike most birds that bring their bill tip up to swallow. This unique action is accomplished by having the tongue scoop water into the pharynx. Then, the front of the larynx forces the water into the oesophagus, which, through peristalsis, takes the fluid to the crop.
10x magnification photo of Adult hermaphroditic female Parasitic nematode (Phasmarhabditis hermaphrodita). 1 Eye Piece Unit = 9.5μm P. hermaphrodita is unsegmented, vermiform, bilateral symmetrical pseudocoelomate. The body dimensions and structure of P. hermaphrodita is comparable to C. elegans' with a body length 1.3 - 1.7 mm long and an estimated circumference of 0.180mm. The primary structures are the Rhabditida-specific mouth, the pharynx, the intestine, the reproductive system (uterus, spermatheca, gonads) and the cuticle.
This small worm grows to a length of about . The two palps are widely separated and the eversible pharynx bears a large tooth near the rim but behind the pharyngeal opening. On the dorsal surface, long and short cirri alternate. The antennae and cirri have dark spots, but the general body colour is variable, being some shade of brown, grey or pink, sometimes with orange or pink speckling near the anterior end.
The most commonly reported side effects were: oral thrush, nausea, headache, and pain in the pharynx or larynx. More rarely reported side effects (occurring in <1% of patients during the clinical trial) include: tachycardia, palpitations, dry mouth, allergic reaction (bronchospasm, dermatitis, hives), pharyngitis, muscle spasms, tremor, dizziness, insomnia, nervousness, and hypertension. Patients experiencing an allergic reaction or increase in difficulty breathing while using this medication should immediately discontinue its use and contact their physician.
One possible combination of source and filter in the human vocal tract. In human speech production, the sound source is the vocal folds, which can produce a periodic sound when constricted or an aperiodic (white noise) sound when relaxed. The filter is the rest of the vocal tract, which can change shape through manipulation of the pharynx, mouth, and nasal cavity. Fant roughly compares the source and filter to phonation and articulation, respectively.
The palatoglossal arch (glossopalatine arch, anterior pillar of fauces) on either side runs downward, lateral (to the side), and forward to the side of the base of the tongue, and is formed by the projection of the glossopalatine muscle with its covering mucous membrane. It is the anterior border of the isthmus of the fauces and marks the border between the mouth and the palatopharyngeal arch. The latter marks the beginning of the pharynx.
The air is breathed through the mouth, and the diver must be able to seal off the nasal passages from the pharynx so that breathing remains possible with a flooded or dislodged mask. Breathing from scuba is mostly a straightforward matter. Under most circumstances it differs very little from normal surface breathing. In the case of a full-face mask, the diver may usually breathe through the nose or mouth as preferred.
Burykhia hunti is a Precambrian fossil from the White Sea region of Russia dating to . It is considered of ascidian affinity, due to the sac-like morphology and a series of distinctly perforated bands reminiscent of a tunicate pharynx. If B. hunti is a tunicate, it could be the oldest ascidian fossil known as of its publication in 2012. It is possibly related to the slightly younger Ausia, another putative ascidian from the Vendian biota in Namibia.
This arrangement means the brain, sub-pharyngeal ganglia and the circum-pharyngeal connectives form a nerve ring around the pharynx. The ventral nerve cord (formed by nerve cells and nerve fibres) begins at the sub- pharyngeal ganglia and extends below the alimentary canal to the most posterior body segment. The ventral nerve cord has a swelling, or ganglion, in each segment, i.e. a segmental ganglion, which occurs from the fifth to the last segment of the body.
The gut of the earthworm is a straight tube which extends from the worm's mouth to its anus. It is differentiated into an alimentary canal and associated glands which are embedded in the wall of the alimentary canal itself. The alimentary canal consists of a mouth, buccal cavity (generally running through the first one or two segments of the earthworm), pharynx (running generally about four segments in length), oesophagus, crop, gizzard (usually) and intestine. Food enters at the mouth.
If this situation is not immediately identified and corrected, death will ensue from cerebral and cardiac anoxia. Of 4,460 claims in the American Society of Anesthesiologists (ASA) Closed Claims Project database, 266 (approximately 6%) were for airway injury. Of these 266 cases, 87% of the injuries were temporary, 5% were permanent or disabling, and 8% resulted in death. Difficult intubation, age older than 60 years, and female gender were associated with claims for perforation of the esophagus or pharynx.
13 Aerial photo of Mount Everest from the south, behind Nuptse and Lhotse. There is, however, a complication that increases the volume of air that needs to be inhaled per minute (respiratory minute volume) to provide the same amount of oxygen to the lungs at altitude as at sea level. During inhalation the air is warmed and saturated with water vapor during its passage through the nose passages and pharynx. Saturated water vapor pressure is dependent only on temperature.
This information passes via the olfactory nerve which goes into the skull through a relatively permeable part. This nerve transmits to the neural circuitry of the olfactory bulb from where information is passed to the olfactory cortex. Taste is generated from receptors on the tongue and passed along the facial and glossopharyngeal nerves into the solitary nucleus in the brainstem. Some taste information is also passed from the pharynx into this area via the vagus nerve.
A nose is a protuberance in vertebrates that houses the nostrils, or nares, which receive and expel air for respiration alongside the mouth. Behind the nose are the olfactory mucosa and the sinuses. Behind the nasal cavity, air next passes through the pharynx, shared with the digestive system, and then into the rest of the respiratory system. In humans, the nose is located centrally on the face and serves as an alternative respiratory passage especially during suckling for infants.
Colonies of Streptococcus equi on a blood agar plate Strangles (equine distemper) is a contagious upper respiratory tract infection of horses and other equines caused by a Gram-positive bacterium, Streptococcus equi. As a result, the lymph nodes swell, compressing the pharynx, larynx, and trachea, and can cause airway obstruction leading to death, hence the name strangles. Strangles is enzootic in domesticated horses worldwide. The contagious nature of the infection has at times led to limitations on sporting events.
The fauces, isthmus of fauces, or the oropharyngeal isthmus, is the opening at the back of the mouth into the throat. It is a narrow passage between the pharynx and the base of the tongue. The fauces is a part of the oropharynx directly behind the oral cavity as a subdivision, bounded superiorly by the soft palate, laterally by the palatoglossal and palatopharyngeal arches, and inferiorly by the tongue. The arches form the pillars of the fauces.
The heart is a curved muscular tube lying in the postabdomen, or close to the stomach. Each end opens into a single vessel, one running to the endostyle, and the other to the dorsal surface of the pharynx. The vessels are connected by a series of sinuses, through which the blood flows. Additional sinuses run from that on the dorsal surface, supplying blood to the visceral organs, and smaller vessels commonly run from both sides into the tunic.
Although there is no true brain, the largest ganglion is located in the connective tissue between the two siphons, and sends nerves throughout the body. Beneath this ganglion lies an exocrine gland that empties into the pharynx. The gland is formed from the nerve tube, and is therefore homologous to the spinal cord of vertebrates. Sea squirts lack special sense organs, although the body wall incorporates numerous individual receptors for touch, chemoreception, and the detection of light.
Polyclads range from in length with a flattened, roughly oval, body shape and, in many cases, a pair of short tentacles on the head. They are distinguished from other related animals by the presence of a folded pharynx, an elongated intestine with numerous complex diverticula, and multiple ocelli. The etymology of the order name Polycladida corresponds to the two ancient Greek words (), meaning "numerous", and (), meaning "branch". It refers to the ramified shape of the intestine in these flatworms.
Worldwide, 3.6% of all cancer cases and 3.5% of cancer deaths are attributable to alcohol. In particular, alcohol use has been shown to increase the risk of developing cancers of the mouth, esophagus, pharynx, larynx, stomach, liver, ovaries, and colon. The main mechanism of cancer development involves increased exposure to acetaldehyde, a carcinogen and breakdown product of ethanol. Other mechanisms have been proposed, including alcohol-related nutritional deficiencies, changes in DNA methylation, and induction of oxidative stress in tissues.
In vertebrates, the first part of the digestive system is the buccal cavity, commonly known as the mouth. The buccal cavity of a fish is separated from the opercular cavity by the gills. Water flows in through the mouth, passes over the gills and exits via the operculum or gill slits. Nearly all fish have jaws and may seize food with them but most feed by opening their jaws, expanding their pharynx and sucking in food items.
The buccopharyngeal fascia is a fascia in the head. Parallel to the carotid sheath and along its medial aspect the pretracheal fascia gives off a thin lamina, the buccopharyngeal fascia, which closely invests the constrictor muscles of the pharynx and is continued forward from the constrictor pharyngis superior onto the buccinator. It is attached to the prevertebral layer by loose connective tissue only, and thus an easily distended space, the retropharyngeal space, is found between them.
Although they have a mouth with one or two rows of tiny teeth, compound eyes, and a nervous system, they have no respiratory or circulatory systems. The mouth opens into a muscular pharynx, which contains glands to lubricate the passage of food. From here, a straight intestine runs the length of the trunk to an anus just forward of the tail. The intestine is the primary site of digestion and includes a pair of diverticula near the anterior end.
The soft tissues of the mid-Cambrian hyolith Haplophrentis, from the Burgess Shale and Spence Shale Lagerstätten include a gullwing-shaped band below the operculum. This band is interpreted as a lophophore, a feeding organ with a central mouth; it bears 12 to 16 tentacles. From the mouth a muscular pharynx leads to a gut, which loops back and exits beyond the crown of tentacles. Next the gut are a pair of large kidney-shaped organs of uncertain nature.
The lophophore captures food particles, especially phytoplankton (tiny photosynthetic organisms), and deliver them to the mouth via the brachial grooves along the bases of the tentacles. The mouth is at the base of the lophophore. Food passes through the mouth, muscular pharynx ("throat") and oesophagus ("gullet"), all of which are lined with cilia and cells that secrete mucus and digestive enzymes. The stomach wall has branched ceca ("pouches") where food is digested, mainly within the cells.
Velopharyngeal insufficiency can be diagnosed by a speech pathologist through a perceptual speech assessment. Speech characteristics of VPI include hypernasality (too much sound in the nasal cavity during speech) and/or audible nasal emission of air during speech. Nasal emission can also cause the consonants to be very weak in intensity and pressure. The patient may develop compensatory productions for consonants, where the sounds are produced in the pharynx (throat area) where there is adequate airflow.
The medial aspect is made up of the pharynx. Anteriorly it is bordered by the pterygomandibular raphe. Posteriorly it is bordered by carotid sheath posteriolaterally and the retropharyngeal space posteriomedially. The lateral aspect is more involved, and is bordered by the ramus of the mandible, the deep lobe of the parotid gland, the medial pterygoid muscle, and below the level of the mandible, the lateral aspect is bordered by the fascia of the posterior belly of digastric muscle.
The chondroglossus is a muscle sometimes described as a part of the hyoglossus, but is separated from it by fibers of the genioglossus, which pass to the side of the pharynx. It is about 2 cm long, and arises from the medial side and base of the lesser cornu and contiguous portion of the body of the hyoid bone, and passes directly upward to blend with the intrinsic muscular fibers of the tongue, between the hyoglossus and genioglossus.
Neanthes fucata lives inside an empty gastropod mollusc shell inhabited by a hermit crab. It is able to steal scraps of food from the hermit crab by protruding its pharynx between the crab's third maxillipeds. It has been shown that the crab recognises its commensal worm and does not attack it. A single adult worm inhabits a single host mollusc shell occupied by a hermit crab, but occasionally a single adult and several juveniles have been found living together.
This species displays a number of behaviours not normally seen in Lepidoptera. Unlike most moths, which generate noise by rubbing external body parts together, all three species within the genus Acherontia are capable of producing a "squeak" from the pharynx, a response triggered by external agitation. The moth sucks in air, causing an internal flap between the mouth and throat to vibrate at a rapid speed. The "squeak" described is produced upon the exhalation when the flap is open.
However, she completely recovered over a three-year period. She fully regained her vocal abilities; a side effect of the attack was that she developed a five-octave vocal range as a result of the trauma to her pharynx. After Arena's father Renato died, she left Italy for the US with her mother. There she came under the wing of Sal Pacino and his wife Katherin Pacino, the father and stepmother of the actor Al Pacino.
Members of the Phyllodocidae are characterised by an eversible pharynx and leaf-like dorsal cirri. The head has a pair of antennae at the front, a pair of ventral palps and a single median antenna known as a "nuchal papilla". There is a pair of nuchal organs and there may or may not be a pair of eyes. The first two or three body segments may be part-fused and bear up to four pairs of tentacular cirri.
Edmondson, Jerold A., John H. Esling, Jimmy G. Harris, & Huang Tung- chiou (n.d.) "A laryngoscopic study of glottal and epiglottal/pharyngeal stop and continuant articulations in Amis—an Austronesian language of Taiwan" Pharyngeal or epiglottal stops and trills are usually produced by contracting the aryepiglottic folds of the larynx against the epiglottis. That articulation has been distinguished as aryepiglottal. In pharyngeal fricatives, the root of the tongue is retracted against the back wall of the pharynx.
Usually, air is not swallowed but returns to the pharynx. Wind-sucking is a related behavior whereby the horse arches its neck and sucks air into the windpipe but does so without grasping an object. Wind-sucking is thought to form part of the mechanism of cribbing, rather than being defined as an entirely separate behavior. Cribbing is considered to be an abnormal, compulsive behavior or stereotypy seen in some horses, and is often labelled a stable vice.
Non-selective deposit feeders ingest soil or marine sediments via mouths that are generally unspecialized. Some clitellates have sticky pads in the roofs of their mouths, and some of these can evert the pads to capture prey. Leeches often have an eversible proboscis, or a muscular pharynx with two or three teeth. The gut is generally an almost straight tube supported by the mesenteries (vertical partitions within segments), and ends with the anus on the underside of the pygidium.
The fragments are motile and regenerate the head plate and pharynx in a few weeks. Such a reproduction strategy is considered one of the reason for the successful colonization of this and other species of Bipalium. Although there is little evidence of sexual reproduction in these planarians, there have been several reported cases of egg capsules being discovered. The egg capsules discovered had several of the same characteristics of those of B. adventitium, including coloration and incubation period.
The larynx (), commonly called the voice box, is an organ in the top of the neck involved in breathing, producing sound and protecting the trachea against food aspiration. The larynx houses the vocal folds, and manipulates pitch and volume, which is essential for phonation. It is situated just below where the tract of the pharynx splits into the trachea and the esophagus. The word larynx (plural larynges) comes from a similar Ancient Greek word (λάρυγξ lárynx).
Most bony fishes have two sets of jaws made mainly of bone. The primary oral jaws open and close the mouth, and a second set of pharyngeal jaws are positioned at the back of the throat. The oral jaws are used to capture and manipulate prey by biting and crushing. The pharyngeal jaws, so-called because they are positioned within the pharynx, are used to further process the food and move it from the mouth to the stomach.
Underdevelopment of the pharynx can also narrow the airway. Features related to TCS that are seen less frequently include nasal deformities, high-arched palate, macrostomia, preauricular hair displacement, cleft palate, hypertelorism, notched upper eyelid, and congenital heart defects. Although facial deformity is often associated with developmental delay and intellectual disability, more than 95% of people affected with TCS have normal intelligence. The psychological and social problems associated with facial deformity can affect quality of life in individuals with TCS.
In adults, choking often involves food blocking the airway. Risk factors include using alcohol or sedatives, undergoing a procedure involving the oral cavity or pharynx, wearing oral appliances, or having a medical condition that causes difficulty swallowing or impairs the cough reflex. Conditions that can cause difficulty swallowing and/or impaired coughing include neurological conditions such as strokes, Alzheimer's disease, or Parkinson's disease. In older adults, risk factors also include living alone, wearing dentures, and having difficulty swallowing.
The linings of the mouth and pharynx are highly vascularised, acting as primitive but efficient lungs. Although swamp eels are not themselves related to amphibians, this lifestyle may well resemble those of the fish from which the land animals evolved during the Devonian period. Although the adults are virtually finless, the larvae are born with greatly enlarged pectoral fins. The fins are used to propel streams of oxygenated water from the surface along the larva's body.
During embryological development, the thymus is formed from the third and fourth pharyngeal pouches. It descends along a pathway from the mandible to its final resting place of the mediastinum. When the thymus tissue fails to descend appropriately or fails to involute, thymus tissue remains in various locations along this pathway. Locations that solid thymus tissue has been reported include near the thyroid (most common), within the thyroid, the base of the skull, and within the pharynx or trachea.
Metaxas never saw the joint Fascist-Nazi invasion of Greece during the Battle of Greece because he died in Athens on 29 January 1941 of a phlegmon of the pharynx, which subsequently led to incurable toxaemia. He was succeeded by Alexandros Koryzis. After the death of Metaxas, the invading forces had to take into account the fortifications constructed by Metaxas in Northern Greece. These fortifications were constructed along the Bulgarian border and were known as the Metaxas Line.
The proboscis is formed from maxillary galeae and is adaption found in some insects for sucking. The muscles of the cibarium or pharynx are strongly developed and form the pump. In Hemiptera and many Diptera, which feed on fluids within plants or animals, some components of the mouthparts are modified for piercing, and the elongated structures are called stylets. The combined tubular structures are referred to as the proboscis, although specialized terminology is used in some groups.
Odontosyllis phosphorea feeds mainly on bacteria, microalgae and planktonic particles. It swallows this prey whole by everting its pharynx around the food item. It is itself eaten by fish, crabs and birds, being particularly vulnerable during its reproductive phase when it rises to the surface. One means of defence that it exhibits at these times is that it can shed its bioluminescent tail which may serve as a decoy while the worm returns to the seabed.
These fibers synapse in the pterygopalatine ganglion, whereupon the postganglionic, postsynaptic, efferent fibers travel to innervate the lacrimal gland and the mucosal glands of the nose, palate, and pharynx. Preganglionic parasympathetic fibers are also distributed partly via the chorda tympani and lingual nerves to the submandibular ganglion, thence by postganglionic (vasodilator) fibers to the submandibular and sublingual salivary glands. The term "lacrimal nucleus" is sometimes used to refer to a portion of the superior salivatory nucleus.
Praobdellidae is a family of hematophagous leeches which live on the mucous membranes of mammals. These are internal parasites that enter the body through natural orifices (usually nasal cavities and pharynx, more rarely the lower respiratory tract, anus, urethra, and vagina), and cause hirudiniases. These species are characterized by a reduced number of teeth, and a posterior sucker larger than the previous one. The latter may be involved in fixation on moist surfaces such as mucous membranes.
Sea cucumbers have no true brain. A ring of neural tissue surrounds the oral cavity, and sends nerves to the tentacles and the pharynx. The animal is, however, quite capable of functioning and moving about if the nerve ring is surgically removed, demonstrating that it does not have a central role in nervous coordination. In addition, five major nerves run from the nerve ring down the length of the body beneath each of the ambulacral areas.
Macrodasyida is an order of gastrotrichs. Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length. Macrodasyids are almost in entirely marine and live in the sediment in marine or brackish water, but two species have been discovered in freshwater. They can be distinguished from other gastrotrichs by the presence of two pores on either side of the pharynx, that allow excess water to be expelled during feeding.
Kingella kingae is thought to begin infection by colonizing the pharynx, crossing the epithelium by using an RTX toxin, and entering the circulation and reaching deeper tissues, such as bones and joints. K. kingae expresses type IV pili, which allow for enhanced adhesion to respiratory epithelial and synovial cells and thus increased likelihood of colonization. These pili have also been shown to be reduced in number as pathogenesis progresses. σ54 regulates the transcription of pilA1, a major pilus subunit.
The clinical examination narrows the source down to a specific tooth, teeth, or a non-dental cause. Clinical examination moves from the outside to the inside, and from the general to the specific. Outside of the mouth, the sinuses, muscles of the face and neck, the temporomandibular joints, and cervical lymph nodes are palpated for pain or swelling. In the mouth, the soft tissues of the gingiva, mucosa, tongue, and pharynx are examined for redness, swelling or deformity.
This poem is central to Harold Bloom's reading of Stevens's Harmonium, as marking the poet's progress over the perspectivism of "The Snow Man" and the pessimism of "The Man whose Pharynx was bad". The reader who masters these poems and their interrelationships has, according to Bloom, "reached the center of Stevens's poetic and human anxieties and of his resources for meeting those anxieties". "Hoon" points the way towards Stevens's future development as a poet, in his view.Axelrod, p.
Extensive article on the role of menhaden in the ecosystem and possible results of overfishing. In addition to these bony fish, four types of cartilaginous fishes are also filter feeders. The whale shark sucks in a mouthful of water, closes its mouth and expels the water through its gills. During the slight delay between closing the mouth and opening the gill flaps, plankton is trapped against the dermal denticles which line its gill plates and pharynx.
During the third week of development, the thyroid gland begins to develop from the floor of the pharynx. This primordium begins as an evagination between the first and second pharyngeal grooves, relatively where the anterior two-thirds of the tongue ends. This area is known as the foramen cecum and marks the origin of the thyroglossal duct. As the developing thyroid begins to travel to its intended destination, it remains connected to the tongue via the thyroglossal duct.
Once weakened, the muscles never fully recover the same functional capacity to help in breathing and coughing as well as other functions. Therefore, breathing is more difficult and pose a risk of not getting enough oxygen/shallow breathing and insufficient clearance of airway secretions. These issues more commonly occurs while asleep, when muscles are more relaxed. Swallowing muscles in the pharynx can be affected, leading to aspiration coupled with a poor coughing mechanism increases the likelihood of infection/pneumonia.
The lungs possess several characteristics which protect against infection. The respiratory tract is lined by respiratory epithelium or respiratory mucosa, with hair-like projections called cilia that beat rhythmically and carry mucus. This mucociliary clearance is an important defence system against air-borne infection. The dust particles and bacteria in the inhaled air are caught in the mucosal surface of the airways, and are moved up towards the pharynx by the rhythmic upward beating action of the cilia.
The laryngopharynx, (Latin: pars laryngea pharyngis), also known as hypopharynx, is the caudal part of the pharynx; it is the part of the throat that connects to the esophagus. It lies inferior to the epiglottis and extends to the location where this common pathway diverges into the respiratory (laryngeal) and digestive (oesophageal) pathways. At that point, the laryngopharynx is continuous with the esophagus posteriorly. The esophagus conducts food and fluids to the stomach; air enters the larynx anteriorly.
Waldeyer's tonsillar ring is an anatomical term collectively describing the annular arrangement of lymphoid tissue in the pharynx. Waldeyer's ring circumscribes the naso- and oropharynx, with some of its tonsillar tissue located above and some below the soft palate (and to the back of the oral cavity). It is believed that Waldeyer's ring prevents the invasion of microorganisms from going into the air and food passages and this helps in the defense mechanism of the respiratory and alimentary systems.
The digestive organs include an anterior, terminal mouth, a small oval muscular pharynx, a very short oesophagus and a posterior intestine with two lateral branches provided with many ramifications which enters the vitellaria. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium armed with numerous conical pointed slightly recurved spines, a dorsal vagina, a single S-shaped ovary, 25-30 of follicular testes which are postovarian and situated in the intercecal field.
The lab gene is the most anteriorly expressed gene. It is expressed in the head, primarily in the intercalary segment (an appendageless segment between the antenna and mandible), and also in the midgut. Loss of function of lab results in the failure of the Drosophila embryo to internalize the mouth and head structures that initially develop on the outside of its body (a process called head involution). Failure of head involution disrupts or deletes the salivary glands and pharynx.
Species of Bothrioplana are small organisms, usually measuring 2–3 mm in length, but reaching up to 7 mm. The body is transparent, elongate, with a round posterior end and a truncate front end, and lacks eyes. The mouth lies on the ventral side at about the middle of the body, as in most turbellarians, and has a short pharynx. The intestine is tripartite, similarly to what occurs in triclads, having one anterior and two posterior branches.
Members of this order have an elongated, segmented body and a distinct head, normally with a separate peristomium and prostomium. Many, but not all, live in tubes which vary from a mucous sheath to a tough, horny casing. The palps vary from globular to cylindrical and there are from 0 to 7 antennae, usually smooth but occasionally jointed. There is a muscular pharynx with a dorsal pair of mandibles and a set of ventral, toothed, maxillary plates.
The genus Xerapoa includes small-sized land planarians with subcylindrical body and anterior end raised. Usually the sensory pits of the anterior region open at the tip of small papillae. The ovaries are located more posteriorly in the body, close to the pharynx, when compared to other genera of the subfamily Geoplaninae, in which the ovaries are closer to the anterior end. The creeping sole is considerably thin, occupying about one third of the ventral side.
"Most shocking," De John said in the same interview, "was the data showing much higher rates of cancers of the oral cavity and pharynx esophagus in Crestwood than researchers had anticipated." Researchers found twice as many cases of esophageal cancer as they expected and nearly twice as many cases of oral cavity cancer. Some residents of Crestwood claimed that the federal government was using "Gestapo" tactics in the investigation against the current and former mayors Robert and Chester Stranczek.
The gill slits of a whale shark flaring as it expels water from its pharyngeal cavity. Like other fishes, sharks extract oxygen from water as it passes over their gills. The water enters through the mouth, passes into the pharynx, and exits through the gill slits (most sharks have five pairs, the frilled sharks, cow sharks, and sixgill sawshark have six or seven pairs). Most sharks also have an accessory respiratory opening called a spiracle behind their eyes.
Jean Hyacinthe Vincent Jean Hyacinthe Henri Vincent (22 December 1862 – 23 November 1950) was a French physician who was a native of Bordeaux. He was an associate professor at Val-de-Grâce, as well as medical inspector general with the French Army. Later he attained the chair of epidemiology at Collège de France. Vincent is credited with the discovery of the organisms that cause an acute infection of the oral soft tissues, including the tonsils and pharynx.
A Mexican howler The Mexican howler (Alouatta palliata mexicana) is a subspecies of the mantled howler, A. palliata. This subspecies is found predominantly in forests between south eastern Mexico and north eastern Peru. Typical of its species, the Mexican howler monkey has a prehensile tail, a deep jaw, and a large pharynx which it uses to make characteristically deep and resonating howls.Cuarón, A.D., Shedden, A., Rodríguez-Luna, E., de Grammont, P.C., Link, A., Palacios, E., Morales, A. & Cortés-Ortiz, L. 2008.
The laryngeal mask airway (LMA) is a tube with an inflatable cuff. A laryngeal mask airway can be positioned in the lower oropharynx to prevent airway obstruction by soft tissues and to create a safe channel for ventilation. The laryngeal mask airway is the standard rescue ventilation when endotracheal intubation cannot be accomplished. To insert the laryngeal mask airway into the patient, the deflated mask should be pressed against the hard palate, rotated past the base of the tongue, and reaching the pharynx.
They became active at dusk, swimming towards the coast to the head of the canyon and rising into the water column; this upward movement is likely related to feeding on schooling fishes. Individual sharks seldom strayed from the local area and had very small home ranges, no more than . The prickly sharks in Monterey Canyon regularly form aggregations that may number over thirty. The size and structure of the prickly shark's mouth and pharynx suggests that it uses suction to capture prey.
Regional specification of the gut tube into different components occurs during the time that the lateral body folds are bringing the two sides of the tube together. Different regions of the gut tube are initiated by retinoic acid (RA) from the pharynx to the colon. This RA causes transcription factors to be expressed in different regions of the gut tube. Thus, SOX2 specifies the esophagus and stomach; PDX1 specifies the duodenum; CDXC specifies the small intestine; CDXA specifies the large intestine and rectum.
Disruption of normal swallowing, referred to as dysphagia, has a variety of reasons, among which is tongue muscles weakness and fatigue. The tongue is a critical organ in swallowing, providing the driving forces that transport food and liquid through the mouth and pharynx. Fatigue in the tongue muscles may contribute to incomplete food clearance (residue), prolonged time to complete a meal and reduced intake. Tongue exercise to increase the muscle tone is therefore an important part of the oral myology therapy of dysphagia.
The oral cavity and oropharynx are examined under direct vision. The larynx may be examined by indirect laryngoscopy using a small angled mirror with a long handle (akin to a dentist's mirror) and a strong light. Indirect laryngoscopy can be highly effective, but requires skill and practice for consistent results. For this reason, many specialist clinics now use fibre-optic nasal endoscopy where a thin and flexible endoscope, inserted through the nostril, is used to clearly visualise the entire pharynx and larynx.
There are no symptoms associated with the lesion itself, although many and varied symptoms and signs may be associated with the underlying cause of immunosuppression. The lesion is a white patch, which almost exclusively occurs on the lateral surfaces of the tongue, although rarely it may occur on the buccal mucosa, soft palate, pharynx or esophagus. The lesion may grow to involve the dorsal surface of the tongue. The texture is vertically corrugated ("hairy") or thickly furrowed and shaggy in appearance.
Priapulids are cylindrical worm-like animals, ranging from 0.2–0.3 to 39 centimetres ( 0.08–0.12 to 15.35 in) long, with a median anterior mouth quite devoid of any armature or tentacles. The body is divided into a main trunk or abdomen and a somewhat swollen proboscis region ornamented with longitudinal ridges. The body is ringed and often has circles of spines, which are continued into the slightly protrusible pharynx. Some species may also have a tail or a pair of caudal appendages.
The body has a chitinous cuticle that is moulted as the animal grows. There is a wide body-cavity, which has no connection with the renal or reproductive organs, so it is not a coelom; it is probably a blood-space or hemocoel. There are no vascular or respiratory systems, but the body cavity does contain phagocytic amoebocytes and cells containing the respiratory pigment haemerythrin. The alimentary canal is straight, consisting of an eversible pharynx, an intestine, and a short rectum.
Nitrogenous waste is excreted in the form of ammonia through the body wall, and is not associated with any specific organs. However, the structures for excreting salt to maintain osmoregulation are typically more complex. In many marine nematodes, one or two unicellular 'renette glands' excrete salt through a pore on the underside of the animal, close to the pharynx. In most other nematodes, these specialized cells have been replaced by an organ consisting of two parallel ducts connected by a single transverse duct.
Exposure routes are through inhalation, skin absorption, ingestion, and skin and/or eye contact; symptoms of exposure include throat irritation (pharynx and larynx), bronchial asthma, and sensitization dermatitis. Sensitization is a lifelong issue, which may lead to active sensitization to products, including but not limited to black clothing, various inks, hair dye, dyed fur, dyed leather, and certain photographic products. It was voted Allergen of the Year in 2006 by the American Contact Dermatitis Society. Poisoning by PPD is rare in western countries.
Molgula oculata is nearly spherical in shape and is about in diameter. It has a sac-like body with a leathery covering known as its tunic, with two siphons on the upper surface. Water is drawn into the body cavity through a six-lobed oral siphon and expelled through a four- lobed atrial siphon. The oral siphon is surrounded by a ring of branched tentacles, the function of which is to prevent large particles being drawn into the pharynx with the water current.
As most land planarians, O. ladislavii is a predator. In laboratory experiments, it has been shown to feed on land gastropods, including species of environmental and economic concern, such as Bradybaena similaris, Cornu aspersum and Deroceras laeve. It is able to detect a slime trail left by the gastropod on the substrate and follow it. Once finding the prey, the planarian tries to immobilize it by muscular force and, if it succeeds, it everts its pharynx and begins to consume the gastropod.
While the left pleuro-parietal, the parietal-subintestinal/visceral and the right pleuro-parietal/supraintestinal connectives are very short, the subintestinal/visceral-parietal/supraintestinal connective is long. An additional presumed osphradial ganglion is linked to the fused parietal/supraintestinal ganglion. Anteriorly, a nerve emerges and innervates the right body wall; no histologically differentiated osphradium could be detected. The buccal ganglia are positioned posterior to the pharynx and are linked to each other by a short buccal commissure ventral to the oesophagus.
Other disadvantages of tracheal intubation include damage to the mucosal lining of the nasopharynx or oropharynx and subglottic stenosis. In an emergency a cricothyrotomy can be used by health care professionals, where an airway is inserted through a surgical opening in the cricothyroid membrane. This is similar to a tracheostomy but a cricothyrotomy is reserved for emergency access. This is usually only used when there is a complete blockage of the pharynx or there is massive maxillofacial injury, preventing other adjuncts being used.
Total recorded alcohol per capita consumption (15+), in litres of pure alcohol. Alcoholic beverages are classified by the International Agency for Research on Cancer (IARC) as a Group 1 carcinogen (carcinogenic to humans). IARC classifies alcoholic beverage consumption as a cause of female breast, colorectal, larynx, liver, esophagus, oral cavity, and pharynx cancers; and as a probable cause of pancreatic cancer. 3.6% of all cancer cases and 3.5% of cancer deaths worldwide are attributable to consumption of alcohol (specifically, ethanol).
Aspidogastreans have a nervous system of extraordinary complexity, greater than that of related free-living forms, and a great number of sensory receptors of many different types. The nervous system is of great complexity, consisting of a great number of longitudinal nerves (connectives) connected by circular commissures. The brain (cerebral commissure) is located dorsally, in the anterior part of the body, the eyes dorsally attached to it. A nerve from the main connective enters the pharynx and also supplies the intestine.
In G. mariae, the gametes are shed into the coelenteron or body cavity of each polyp and pass through the mouth into the open sea, where fertilisation takes place. The fertilised egg develops into a planula larva, which is planktonic. The tentacles, septa, and pharynx begin to develop before the larva settles on its aboral (non-mouth) end and metamorphs into a juvenile sea fan. In 1995, a disease affected gorgonians in the Caribbean, with Gorgonia flabellum and Gorgonia ventalina being particularly affected.
Within the tonsils, white blood cells of the immune system destroy the viruses or bacteria by producing inflammatory cytokines like phospholipase A2, which also lead to fever. The infection may also be present in the throat and surrounding areas, causing inflammation of the pharynx. Sometimes, tonsillitis is caused by an infection of spirochaeta and treponema, in this case called Vincent's angina or Plaut-Vincent angina. — fusospirillum complex (Plaut-Vincent angina) Van Cauwenberge studied the tonsils of 126 patients using direct microscope observation.
Apnea of prematurity is defined as cessation of breathing by a premature infant that lasts for more than 20 seconds and/or is accompanied by hypoxia or bradycardia. Apnea is traditionally classified as either obstructive, central, or mixed. Obstructive apnea may occur when the infant's neck is hyperflexed or conversely, hyperextended. It may also occur due to low pharyngeal muscle tone or to inflammation of the soft tissues, which can block the flow of air though the pharynx and vocal cords.
D. aborensis, like all the other Dugesia species, has a triangle-shaped head with two auricles on each side. The dorsal side of the body has a light brown color, with a darker line running in the middle line along the length of the body, from the neck to the posterior end. At the root of the pharynx, at about the middle of its course, this line expands into a broad patch. The ventral surface has a milky white color.
The upper respiratory tract is generally considered to be the airway above the glottis or vocal cords, sometimes it is taken as the tract above the cricoid cartilage. This part of the tract includes the nose, sinuses, pharynx, and larynx. Typical infections of the upper respiratory tract include tonsillitis, pharyngitis, laryngitis, sinusitis, otitis media, certain types of influenza, and the common cold. Symptoms of URIs can include cough, sore throat, runny nose, nasal congestion, headache, low grade fever, facial pressure and sneezing.
Mucous membrane pemphigoid (MMP), or cicatricial pemphigoid, is a rare, chronic, autoimmune sub-epidermal blistering disorder which predominantly involves the mucosae and has a tendency towards scarring of the affected areas. Any mucous membrane can be involved, but the most commonly involved site is the oral mucosa, followed by conjunctiva, skin, pharynx, external genitalia, nasal mucosa, larynx, anus, and esophagus. As MMP may lead to serious complications such as blindness and airway compression, early and aggressive treatment initiation may be needed.
Floor of pharynx at about 26 days showing lateral swellings at first pharyngeal arch (mandibular arch). The tongue begins to develop in the fourth week of embryonic development from a median swelling – the median tongue bud (tuberculum impar) of the first pharyngeal arch. In the fifth week a pair of lateral lingual swellings, one on the right side and one on the left, form on the first pharyngeal arch. These lingual swellings quickly expand and cover the median tongue bud.
Myzostoma anatomy, showing cirri (c); the pharynx (p), and anus (a) Diversity of myzostomid body shapes A typical myzostomid has a flattened, rounded shape, with a thin edge drawn out into delicate radiating hairs called cirri. The dorsal surface is smooth, with five pairs of parapodia on the bottom surface. These parapodia are armed with supporting and hooked setae, by means of which the worm adheres to its host. Beyond the parapodia are four pairs of organs, often called suckers.
P. integerrimum is a leaf-like flatworm that can grow to a maximum length of about . At the anterior (head) end are the mouth and a pair of suckers, and at the posterior end is the main device by which the parasite attaches to its host, the opisthaptor, with its three pairs of suckers, a pair of hooked anchors and marginal hooks. The flatworm's mouth is connected to a muscular pharynx, an oesophagus and a gut, but it has no anus.
The method of connection varies between the different classes of bryozoans, ranging from quite large gaps in the body walls to small pores through which nutrients are passed by funiculi. There is a nerve ring round the pharynx (throat) and a ganglion that serves as a brain to one side of this. Nerves run from the ring and ganglion to the tentacles and to the rest of the body. Bryozoans have no specialized sense organs, but cilia on the tentacles act as sensors.
The spines are essentially moveable extensions of the body wall, and are hollow and covered by cuticle. The head is completely retractable, and is covered by a set of neck plates called placids when retracted.Echinoderes spinifurca Kinorhynchs eat either diatoms or organic material found in the mud, depending on species. The mouth is located in a conical structure at the apex of the head, and opens into a pharynx and then an oesophagus, both of which are lined by cuticle.
This diverticulum was once thought to be homologous with the notochord of chordates, hence the name "hemichordate" for the phylum. The mouth opens posteriorly into a pharynx with a row of gill slits along either side. The remainder of the digestive system consists of an oesophagus and intestine; there is no stomach. In some families there are openings in the dorsal surface of the oesophagus connecting to the external surface, through which water from the food can be squeezed, helping to concentrate it.
A common noticeable behavior in mullet is the tendency to leap out of the water. There are two distinguishable types of leaps: a straight, clean slice out of the water to escape predators and a slower, lower jump while turning to its side that results in a larger, more distinguishable, splash. The reasons for this lower jump are disputed, but have been hypothesized to be in order to gain oxygen rich air for gas exchange in a small organ above the pharynx.
However, some long species have an anus and some with complex, branched guts have more than one anus, since excretion only through the mouth would be difficult for them. The gut is lined with a single layer of endodermal cells that absorb and digest food. Some species break up and soften food first by secreting enzymes in the gut or pharynx (throat). All animals need to keep the concentration of dissolved substances in their body fluids at a fairly constant level.
These reflexes can also protect the airways from any food or liquids that may spill over from the hypopharynx. The hypopharynx is the bottom part of pharynx, and can be considered the first area where the digestive tract splits from the airways. However, if the maximum capacity of fluids that the hypopharynx can safely hold is exceeded, then this excess fluid spills into the larynx and from there into the lungs. Therefore, these reflexes prevent levels reaching this maximum volume.
Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills. In species like the Spiny dogfish and other sharks and rays, a spiracle exists near the top of the head that pumps water into the gills when the animal is not in motion. In some fish, capillary blood flows in the opposite direction to the water, causing countercurrent exchange. The muscles on the sides of the pharynx push the oxygen-depleted water out the gill openings.
Database of extant Ascidiacea. Version of 2 November 2007 They superficially resemble sea squirts but prey on invertebrates such as crustaceans. They also have some unique physical features that distinguish them from the ascidiaceans, including a severely reduced pharynx, the retention of the dorsal nerve cord as adults, the superficial position of their ganglion and the unique histology of the cells of their digestive tracts. The branchial syphon is large and surrounded by six large lobes; the cloacal syphon is small.
Cratera viridimaculata is a medium-sized land planarian with a lanceolate body, reaching about in length. The color of the dorsum is light olive green covered with dark gray fine spots. The ventral side is whitish and the margins on both dorsal and ventral sides are gray. The several eyes of C. viridimaculata are distributed marginally in the first millimeters of the body and posteriorly become dorsal, occupying around 30% of the body width just before the region of the pharynx.
XK aprosencephaly (also called Garcia-Lurie syndrome, aprosencephaly, and aprosencephaly-atelencephaly syndrome) is an extremely rare congenital disorder characterized by the absence of the embryonic forebrain. Because the prosencephalon gives way to the cerebral cortex, survival with aprosencephaly is not possible outside utero. The external symptoms are similar to holoprosencephaly, a related disorder, including a smaller than normal head (microcephaly), small eyeballs (microphthalmia), a small mouth (microstomia), anal atresia (no anus), and abnormalities of the external genitalia, radius, nostrils, and pharynx (throat).
Most objects that are swallowed will, if they have passed the pharynx, pass all the way through the gastrointestinal tract unaided. However, sometimes an object becomes arrested (usually in the terminal ileum or the rectum) or a sharp object penetrates the bowel wall. If the foreign body causes problems like pain, vomiting or bleeding it must be removed. Swallowed batteries can be associated with additional damage, with mercury poisoning (from mercury batteries) and lead poisoning (from lead batteries) presenting important risks.
The ascending pharyngeal artery is an artery in the neck that supplies the pharynx, developing from the proximal part of the embryonic second aortic arch. It is the smallest branch of the external carotid and is a long, slender vessel, deeply seated in the neck, beneath the other branches of the external carotid and under the stylopharyngeus muscle. It lies just superior to the bifurcation of the common carotid arteries. The artery most typically bifurcates into embryologically distinct pharyngeal and neuromeningeal trunks.
Lamellodisc of Calydiscoides euzeti All species of Calydiscoides are small animals, ranging 0.5–1 mm in length. As with most monogeneans, they are flat, with an anterior head bearing four oculi and head glands, a main elongate body and a posterior haptor. The digestive system includes an anterior muscular pharynx, and two lateral intestinal branches (or caeca); as in all Platyhelminthes, there is no anus. The haptor, in the posterior part of the body, is a specialized organ used to attach to the host.
Retracted tongue root, abbreviated RTR, is the retraction of the base of the tongue in the pharynx during the pronunciation of a vowel, the opposite articulation of advanced tongue root. This type of vowel has also been referred to as pharyngealized. The neutral position of the tongue during the pronunciation of a vowel, contrasting with advanced tongue root and thus marked -ATR, is also sometimes referred to as retracted tongue root. The diacritic for RTR in the International Phonetic Alphabet is the right tack, .
The upper gastrointestinal tract consists of the mouth, pharynx, esophagus, stomach, and duodenum. The exact demarcation between the upper and lower tracts is the suspensory muscle of the duodenum. This differentiates the embryonic borders between the foregut and midgut, and is also the division commonly used by clinicians to describe gastrointestinal bleeding as being of either "upper" or "lower" origin. Upon dissection, the duodenum may appear to be a unified organ, but it is divided into four segments based upon function, location, and internal anatomy.
Cremer was made an officer of the Légion d’honneur in 2008. An inveterate smoker of Punch brand cigars, he died of a cancer of the tongue and the pharynx from which he had suffered for several years,.'Maigret' star Bruno Cremer dies at 80: On Google News - AFP Text, August 8, 2010 in a Paris hospital on Saturday, 8 August 2010, aged 80. His funeral service was held in Paris on 13 August 2010 at the church of Saint Thomas of Aquinas, in the VIIth arrondissement.
Sea Slug Forum, Australian Museum, Sydney They cling to and creep on surfaces by everting the pharynx and using it as a muscular "foot". They are usually cryptically-colored, live on rocks, algae, soft coral, or the body surfaces of other invertebrates; primarily certain species of Cnidarians and Echinoderms (primarily the genus Coeloplana sp.). They are often revealed by their long tentacles with many sidebranches, seen streaming off the back of the animal into the current. They tend to be ectosymbiotic with the organisms they live on.
Surgery is also available as a method of correcting social snoring. Some procedures, such as uvulopalatopharyngoplasty, attempt to widen the airway by removing tissues in the back of the throat, including the uvula and pharynx. These surgeries are quite invasive, however, and there are risks of adverse side effects. The most dangerous risk is that enough scar tissue could form within the throat as a result of the incisions to make the airway more narrow than it was prior to surgery, diminishing the airspace in the velopharynx.
The whole process takes only a few seconds, and several tentacles can deliver their loads at the same time. If the animal is disturbed, the tentacles can contract back into the pharynx, but before long they are out again, collecting more particles. The outer surface of the tentacles bears numerous vesicular cells, and there are a few scattered vesicles on the body surface also. The function of these cells is unclear, but it is suggested that they may contain a noxious substance and serve a defensive function.
Cephalochordate oral hood--100X Cephalochordates employ a filter feeding system to consume microorganisms. The oral hood serves as the entrance for food particles, and possesses buccal cirri, which assist in sifting out larger food particles before they enter the buccal cavity. Epithelial cilia lining the mouth and pharynx form a specialized "wheel organ" situated at the dorsal and posterior end of the cavity. The motion of the cilia resembles the motion of a turning wheel, hence the organ's name, and transports the captured food particles.
OSA can also occur as a serious post-operative complication that seems to be most frequently associated with pharyngeal flap surgery as compared to other procedures for the treatment of velopharyngeal inadequacy (VPI). In OSA, recurrent interruptions of respiration during sleep are associated with temporary airway obstruction. Following pharyngeal flap surgery, depending on size and position, the flap itself may have an "obturator" or obstructive effect within the pharynx during sleep, blocking ports of airflow and hindering effective respiration.Pugh, M.B. et al. (2000). Apnea.
Living scalidophorans use their introvert for movement and the pharynx to swallow prey, which is assumed to be true for Maotianshania too. The inwardly curved pharyngeal spines prevent prey from escaping, while the spines on the introvert (or scalids), may serve to anchor the body to the environment when pulling it forward. The life habit of Maotianshania is most likely creeping on the seafloor (epibenthic) or living in the sandy or muddy top layer. It seem unlikely the animal has been burrowing vertical into the sediment.
EMZLs are a form of MZL in which malignant marginal zone B-cells initially infiltrate MALT tissues of the stomach (50-70% of all EMZL) or, less frequently, the esophagus, small intestine, large intestine, rectum, conjunctiva of the eye, nasal passages, pharynx, lung bronchi, vulva, vagina, skin, breast, thymus gland, meninges (i.e. membranes) that envelop the brain and spinal cord, or other organs. These EMZLs are classified into subtypes based on the organ(s) involved. For example, EMZL of the stomach is termed primary gastric EMZL.
In order for the lungs to expel air the diaphragm relaxes, which pushes up on the lungs. The air then flows through the trachea then through the larynx and pharynx to the nasal cavity and oral cavity where it is expelled out of the body. Exhalation takes longer than inhalation and it is believed to facilitate better exchange of gases. Parts of the nervous system help to regulate respiration in humans. The exhaled air isn’t just carbon dioxide; it contains a mixture of other gases.
When removed from the water, the animal often violently expels water from these siphons, hence the common name of "sea squirt". The body itself can be divided into up to three regions, although these are not clearly distinct in most species. The pharyngeal region contains the pharynx, while the abdomen contains most of the other bodily organs, and the postabdomen contains the heart and gonads. In many sea squirts, the postabdomen, or even the entire abdomen, are absent, with their respective organs being located more anteriorly.
Miller notes different areas of emphasis between human medicine and what is allegedly being practiced by the abductors. The abductors' areas of interest appear to be the cranium (see below), nervous system, skin, reproductive system, and to a lesser degree, the joints. Systems given less attention than a human doctor would, or omitted entirely include cardiovascular system, the respiratory system below the pharynx and the lymphatic system. The abductors also appear to ignore the upper region of the abdomen in favor of the lower one.
Positioning involves bringing the axes of the mouth, pharynx, and larynx into alignment, leading to what's called the "sniffing" position. The sniffing position can be achieved by placing a rolled towel underneath the head and neck, effectively extending the head and flexing the neck. You are at proper alignment when the ear is inline with the sternum. As described by Brian Arthur Sellick in 1961, cricoid pressure (alternatively known as Sellick's maneuver) may be used to occlude the esophagus with the goal of preventing aspiration.
This bilaterally symmetrical pharynx with its complex cuticular mouth parts make them appear closely related to rotifers and their allies, together making up the Gnathifera. The ultrastructure of the jaws made of rods with electron dense core in transmission electron microscopy sections also support their close relation with Rotifera and Micrognathozoa. The mouth opens into a blind-ending tube in which digestion takes place; there is no true anus. However, there is tissue connecting the intestine to the epidermis which may serve as an anal pore.
As the recently identified fifth isoform of hexokinase, HKDC1 catalyzes the rate-limiting and first obligatory step of glucose metabolism, which is the ATP-dependent phosphorylation of glucose to G6P. Though its particular biological function remains unclear, HKDC1 has been suggested to play a more major role in glucose metabolism during pregnancy, as the mother would need to provide enough energy for both herself and the fetus. HKDC1 is ubiquitously expressed, with the highest levels of expression in pharynx, thymus, colon, esophagus, and eye tissue.
The tubal tonsil also known as Gerlach tonsil is one of the four main tonsil groups comprising Waldeyer's tonsillar ring, which also includes the palatine tonsils, the lingual tonsils, and the pharyngeal tonsils. The tubal tonsil is very close to the torus tubarius,Michael Tam,"The Pharynx", Medical Student's Retreat-Anatomy Notes, Last updated 30 March 2006. which is why this tonsil is sometimes also called the tonsil of (the) torus tubarius.English Arabic Dictionary of Medical terms,"tonsil of torus tubarius = tubal tonsil", Almaany.com,2010-2014.
The nervous system is also the only place in the nematode body that contains cilia, which are all nonmotile and with a sensory function. At the anterior end of the animal, the nerves branch from a dense, circular nerve (nerve ring) round surrounding the pharynx, and serving as the brain. Smaller nerves run forward from the ring to supply the sensory organs of the head. The bodies of nematodes are covered in numerous sensory bristles and papillae that together provide a sense of touch.
On the lip, the ulcer is more commonly crusting and dry, and in the pharynx it is more commonly a mass. It can also be associated with a white patch, loose teeth, bleeding gums, persistent ear ache, a feeling of numbness in the lip and chin, or swelling. When the cancer extends to the throat, there can also be difficulty swallowing, painful swallowing, and an altered voice. Typically, the lesions have very little pain until they become larger and then are associated with a burning sensation.
Of all the cancers, oral cancer attributes to 3% in males, opposed to 2% in women. New cases of oral cancer in US as of 2013, approximated almost 66,000 with almost 14000 attributed from tongue cancer, and nearly 12000 from the mouth, and the remainder from the oral cavity and pharynx. In the previous year, 1.6% of lip and oral cavity cancers were diagnosed, where the age-standardised incidence rate (ASIR) across all geographic regions of United States of America estimates at 5.2 per 100,000 population.
The digestive organs include an anterior, terminal mouth, a muscular pharynx, and a posterior intestine with two lateral blind-ending branches. Each adult contains male and female reproductive organs. According to Ariola, the male reproductive organs include an anterior genital atrium with spines, posterior to the intestinal bifurcation; a vas deferens opening in the genital atrium; and a number of testes posterior to the ovary and arranged in two simple and parallel rows. Each testes has a canalicum, which sends its products in the common vas deferens.
But recent evidence suggests that the cytotoxic effect of ethanol on the cells lining the oral cavity, pharynx and esophagus activates the division of the stem cells located in deeper layers of the mucosa to replace the dead cells. Every time stem cells divide, they become exposed to unavoidable errors associated with cell division (e.g., mutations arising during DNA replication and chromosomal alterations occurring during mitosis) and also become highly vulnerable to the genotoxic activity of DNA-damaging agents (e.g., acetaldehyde and tobacco carcinogens).
When damaged, sap from the plant of saliva from the animal will cause the idioblast to swell and hydraulically shoot the raphides out. Consumption of the raphides can cause oral pain, vomiting, hypersalivation, and swelling of the pharynx. Rhododendron Vireya have small, thin leaves when compared to other subgenuses of Rhododendron, and inversely have much greater volumes of water storing idioblasts. The Vireya subgroup is believed to have developed specialized idioblasts to aid the water metrics within its small leaves to counter the lack of volume.
Autoinflation is a minimally invasive procedure in which a nasal balloon is inserted into the nasopharynx, followed by the application of pressure to the sinus cavities by forcibly contracting the diaphragm against the closed nasal passageways. It can also be performed by manually pinching the nasal passages and closing the back of the pharynx, followed by forceful contraction of the diaphragm. It is not recommended in cases of bacterial, or suppurative, otitis media, but rather serous non-infectious cases, colloquially referred to as 'glue ear'.
Arachnids produce digestive juices in their stomachs, and use their pedipalps and chelicerae to pour them over their dead prey. The digestive juices rapidly turn the prey into a broth of nutrients, which the arachnid sucks into a pre-buccal cavity located immediately in front of the mouth. Behind the mouth is a muscular, sclerotised pharynx, which acts as a pump, sucking the food through the mouth and on into the oesophagus and stomach. In some arachnids, the oesophagus also acts as an additional pump.
These internal nasal passages evolved while the vertebrates still lived in water. In animals with complete secondary palates (mammals, crocodilians, most skinks) the space between the primary and secondary palates contain the nasal passages, with the choanae located above the posterior end of the secondary palate. In animals with partial secondary palates (most birds and reptiles), the median choanal slit separates the two halves of the posterior half of the palate, connecting the nasal cavity with the buccal cavity (mouth) and the pharynx (throat).
The digestive organs include an anterior, terminal mouth, an oval to elongated pharynx, an oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches; both branches do not extend into the haptor. Each adult contains male and female reproductive organs. The reproductive organs include an anterior tubular and fork-like genital atrium, armed with numerous spines, a medio-dorsal vagina, a single long and tubular ovary and 56 testes which are posterior to the ovary and scattered in middle region. Hadi, R. (2009).
It has a subspherical pharynx, with a length of about 50 µm, and lacks an esophagus, its intestinal bifurcation following the latter organ. It shows a simple caeca that terminates at the level of the posterior margin of its vitellarium. Its testis are also subspherical and intercaecal, with a length of approximately 70 µm; its quadriloculate organ with an inner length of about 51 µm. At the same time, its ovary is subequatorial, intercaecal and pretesticular, encircling the right caecum, with a width of about 80 µm.
Mouth of a sea lamprey, Petromyzon marinus Microscopic cross section through the pharynx of a larva from an unknown lamprey species Lampreys (sometimes inaccurately called lamprey eels) are an ancient extant lineage of jawless fish of the order Petromyzontiformes, placed in the superclass Cyclostomata. The adult lamprey may be characterized by a toothed, funnel-like sucking mouth. The common name "lamprey" is probably derived from Latin , which may mean "stone licker" ( "to lick" + "stone"), though the etymology is uncertain. The plural form lamprey is sometimes seen.
Constrictions made with the tongue can be made in several parts of the vocal tract, broadly classified into coronal, dorsal and radical places of articulation. Coronal articulations are made with the front of the tongue, dorsal articulations are made with the back of the tongue, and radical articulations are made in the pharynx. These divisions are not sufficient for distinguishing and describing all speech sounds. For example, in English the sounds and are both coronal, but they are produced in different places of the mouth.
The digestive organs include an anterior, terminal mouth, an ovoid pharynx, an oesophagus and a posterior intestine with inner and outer diverticula extending up to level of testes, not confluent posterioriely. Each adult contains male and female reproductive organs. The reproductive organs include an anterior postbifurcal genital atrium, armed with numerous very spines, a medio-dorsal vagina, a single convoluted ovary with its distal end directed anteriorly and numerous follicular testes which are posterior to the ovary. The Egg is oval and filamented at each pole.
The digestive organs include an anterior, terminal mouth, an ovoid muscular pharynx ying just behind oral suckers, an oesophagus and a posterior intestine divided in two branches, not confluent posteriorly, extending into the hohaptor. Each adult contains male and female reproductive organs. The reproductive organs include an anterior postbifurcal genital atrium, armed with numerous very spines, a single looped ovary with its distal end directed anteriorly and 21-24 testes which are posterior to the ovary. The Egg is oval and filamented at each pole.
The redear sunfish (family Centrarchidae) has thick pharyngeal teeth composed of hard, movable plates, which it uses to crush the exoskeletons of prey. The pharyngeal jaws of the moray eel (family Muraenidae) possess their own set of teeth. The dentary of the ghost knifefish species Sternarchogiton nattereri (family Apteronotidae) has upper and lower pharyngeal tooth plates bearing 9-11 and 7-9 teeth, respectively. The mouth cone ("everted pharynx") of a possible new species of Meiopriapulus, a marine worm in the Priapulida, bears pharyngeal teeth.
The vocal tract is the cavity in human beings and in animals where the sound produced at the sound source (larynx in mammals; syrinx in birds) is filtered. In birds it consists of the trachea, the syrinx, the oral cavity, the upper part of the esophagus, and the beak. In mammals it consists of the laryngeal cavity, the pharynx, the oral cavity, and the nasal cavity. The estimated average length of the vocal tract in adult male humans is 16.9 cm and 14.1 cm in adult females.
Odontosyllis phosphorea is a small worm some long and in diameter when fully grown. Its elongated body is composed of many segments, each bearing a pair of parapodia. With these appendages it can crawl, burrow and swim, but it normally lives in a parchment-like tube it creates on a rock or other hard surface on the seabed. The head has two pairs of eyes, a nuchal hood which covers the back of the prostomium, and a ring of small curved teeth inside the pharynx.
Swallowing, sometimes called deglutition in scientific contexts, is the process in the human or animal body that allows for a substance to pass from the mouth, to the pharynx, and into the esophagus, while shutting the epiglottis. Swallowing is an important part of eating and drinking. If the process fails and the material (such as food, drink, r medicine) goes through the trachea, then choking or pulmonary aspiration can occur. In the human body the automatic temporary closing of the epiglottis is controlled by the swallowing reflex.
Both vaccines have been used for decades to induce immunity to polio, and to stop the spread of the infection. However, OPV has several advantages; because the vaccine is introduced in the gastrointestinal tract, the primary site of poliovirus infection and replication, it closely mimics a natural infection. OPV also provides long lasting immunity, and stimulates the production of polio neutralizing antibodies in the pharynx and gut. Hence, OPV not only prevents paralytic poliomyelitis, but also, when given in sufficient doses, can stop a threatening epidemic.
The excretory system consists of two protonephridia emptying through pores in the final segment. Echinoderes close up head anatomy The nervous system consists of a ventral nerve cord, with one ganglion in each segment, and an anterior nerve ring surrounding the pharynx. Smaller ganglia are also located in the lateral and dorsal portions of each segment, but do not form distinct cords. Some species have simple ocelli on the head, and all species have tiny bristles on the body to provide a sense of touch.
Embryonic pharyngeal slits, which form in many animals when the thin branchial plates separating pharyngeal pouches and pharyngeal grooves perforate, open the pharynx to the outside. Pharyngeal arches appear in all tetrapod embryos: in mammals, the first pharyngeal arch develops into the lower jaw (Meckel's cartilage), the malleus and the stapes. Haeckel produced several embryo drawings that often overemphasized similarities between embryos of related species. Modern biology rejects the literal and universal form of Haeckel's theory, such as its possible application to behavioural ontogeny, i.e.
In the digestive system, the anterior region of the foregut has been modified to form a pharyngeal sucking pump as they need it for the food they eat, which are for the most part liquids. An esophagus follows and leads to the posterior of the pharynx and in some species forms a form of crop. The midgut is short and straight, with the hindgut being longer and coiled. Ancestors of lepidopteran species, stemming from Hymenoptera, had midgut ceca, although this is lost in current butterflies and moths.
Members of Anchoromicrocotyle have an elongated body with the a symmetrical haptor armed with three pairs of larval hooks. The digestif system includes two oral suckers with papillary edges, a pharynx and an esophagus present. The male genital system includes numerous postovarian testicles, a vas deferens and a complex copulatory organ composed of: a penis-like copulatory organ, a male atrium and two prostate bags. The female genital system comprises a complex ovary, a genito-intestinal canal, an ootype, a uterus and a medio-dorsal unarmed vagina.
The predominance of HNF as marine bacterivores has been confirmed by manipulations with size-fractionated natural assemblages and by direct observation of protists with ingested fluorescent bacteria. More specifically, Neobodo are interception feeders, meaning they feed on bacteria attached to surfaces/biofilms or in aggregates. They press their mouth against food and are often aided by a pseudopod-like structure (pharynx) to detach bacteria. Within this feeding mechanism, further variability in terms of feeding behavior and selection strategies can be observed among different species.
The digestive organs include an anterior, terminal mouth with a folded ventral lip, a small and spherical muscular pharynx, and a posterior intestine with two lateral branches of unequal length. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, with spines, a single median dorsal vagina, a single coiled ovary, and 18-22 small and rounded testes which are posterior to the ovary. Woolcock (1936) gave drawings of the female genital organs (diagrammatic) and of the arrangement of atrial spines.
This membrane disappears in the seventh week leaving a connection between the nasal cavities and the oral cavity, called the primitive choanae. Later, when the development of the secondary palate occurs, the choanae changes its position and locates at the junction of the nasal cavity and the pharynx. The nasal septum grows as a downgrowth from the merged nasal prominences and fuses with the palatine process between the ninth and eleventh week. Finally, the superior, middle and inferior conchae develop the lateral wall of each nasal cavity.
The skeleton usually has one or two mouth hooks to allow the fly to move and feed. As the fly matures, its cephalopharyngeal skeleton also modifies with time to maximize the fly's ability to take in nutrients. A set of muscles called the cibarial dilator muscles connect to the skeleton and function to lift the roof of the pharynx, widening the lumen and allowing for more space. At the first instar stage, the cephalopharyngeal skeleton is brown-black in color and 0.28–0.33 mm long.
V. cuneata has a body composed of two distinct parts of approximately equal length. The anterior part is rectangular in shape, and enclosed by a carapace-like structure of four rigid cuticular plates fused together, with a large, V-shaped mouth at the front end: there is a keel-like extension of the body wall on the top and belly. The tail-like posterior section is slender, strongly cuticularised and placed dorsally. Paired openings connecting the pharynx to the outside run down the sides.
The symptoms of intoxication with mushrooms rich in muscarine, especially Inocybe, are very typical: The symptoms start early, after one-quarter to two hours, with headache, nausea, vomiting, and constriction of the pharynx. Then salivation, lacrimation, and diffuse perspiration set in, combined with miosis, disturbed accommodation, and reduced vision. Gastric and small bowel colic leads to diarrhea, and there is a painful urge for urination. Bronchoconstriction leads to asthmatic attacks and severe dyspnea, and bradycardia combined with marked hypotension and vasodilation results in circulatory shock.
Infections of the throat can be especially problematic, as antibiotics have difficulty becoming sufficiently concentrated there to destroy the bacteria. This is amplified by the fact that pharyngeal gonorrhoea is mostly asymptomatic, and gonococci and commensal Neisseria species can coexist for long time periods in the pharynx and share anti-microbial resistance genes. Accordingly, an enhanced focus on early detection (i.e., screening of high-risk populations, such as men who have sex with men, PCR testing should be considered) and appropriate treatment of pharyngeal gonorrhoea is important.
A velopharyngeal fricative, more commonly known as a velopharyngeal snort, is a sound produced by some people with a cleft palate, whereby turbulent air is forced through a restricted velopharyngeal port into the nasal cavity. The term 'velopharyngeal' indicates "articulation between the upper surface of the velum and the back wall of the naso-pharynx."Bertil Malmberg & Louise Kaiser (1968) Manual of phonetics, North-Holland, p. 325. The symbol for a voiceless velopharyngeal fricative in the extensions to the International Phonetic Alphabet for disordered speech is .
Dudkiewicz, March 2000, CPCJ Because reflux of acidic contents in the posterior pharynx and upper airway can intensify the symptoms of PRS, specifically by worsening airway obstruction, it is important to maximize treatment for GER in children with PRS and reflux symptoms. Treatment may include upright positioning on a wedge (a tucker sling may be needed if the baby is in the prone position), small and frequent feedings (to minimize vomiting), and/or pharmacotherapy (such as proton pump inhibitors). In nasopharyngeal cannulation (or placement of the nasopharyngeal airway or tube), the infant is fitted with a blunt-tipped length of surgical tubing (or an endotracheal tube fitted to the child), which is placed under direct visualization with a laryngoscope, being inserted into the nose and down the pharynx (or throat), ending just above the vocal cords. Surgical threads fitted through holes in the outside end of the tube are attached to the cheek with a special skin-like adhesive material called 'stomahesive', which is also wrapped around the outside end of the tube (but not over the opening at the end) to keep the tube in place.
The laryngeal ventricle, (also called the ventricle of the larynx, laryngeal sinus, or Morgagni's sinus)Medical Definition of Laryngeal sinus in lexic.us. Updated 05 Mar 2000 is a fusiform fossa, situated between the vestibular and vocal folds on either side, and extending nearly their entire length. There is also a sinus of Morgagni in the pharynx. The fossa is bounded, above, by the free crescentic edge of the vestibular ligament; below, by the straight margin of the vocal fold and laterally, by the mucous membrane covering the corresponding thyroarytenoid muscle.
In other words, this branch of the vagus is said to inhibit or disinhibit defensive limbic circuits, depending on the situation. Note: Attributing defensive behaviours purely to the limbic system is an oversimplification, as these are triggered by _perceived_ threats, thus requiring an interplay of brain areas performing sensory integration, memory and semantic knowledge with the limbic system to be elicited. Similarly, the regulation of emotions requires a complex interplay of higher cognitive areas with limbic ones. The vagus nerve mediates control of supradiaphragmatic visceral organs, such as the esophagus, bronchi, pharynx, and larynx.
Buticulotrema thermichthysi is a species of trematodes inhabiting hydrothermal vent fishes (particularly Thermichthys hollisi) in the south eastern Pacific Ocean. It can be distinguished from its family by its symmetrical testicular configuration; its uterus passing between the testes. Furthermore, it can be differentiated from its cogenerate species by its long and strongly muscular oesophagus, that bifurcates dorsally to the posterior part of the animal's ventral sucker; its long and narrow pars prostatica and distal male duct, as well as its sinistral genital pore that can be found at the level of its pharynx.
NCBI GEO Human Tissue Expression Profile for C20orf196. RNA-Seq analysis has shown ubiquitous expression of c20orf196 in 26 human tissues: adrenal, appendix, bone marrow, brain, colon, duodenum, endometrium, esophagus, fat, gall bladder, heart, kidney, liver, lung, lymph node, ovary, pancreas, placenta, prostate, salivary gland, skin, small intestine, spleen, stomach, testis, thyroid, and urinary bladder. The highest C20orf196 mRNA levels were found in the lymph node, tonsil, thyroid, adrenal gland, prostate, pharynx, parathyroid, connective tissue, and bone marrow. C20orf196 was found to be expressed in soft tissue/muscle tissue tumors, lymphoma tumors, and pancreatic tumors.
Scarring is an individual trait, so it is difficult for a surgeon to predict how much a person might be predisposed to scarring. Currently, the American Medical Association does not approve of the use of lasers to perform operations on the pharynx or uvula. Radiofrequency ablation (RFA) is a relatively new surgical treatment for snoring. This treatment applies radiofrequency energy and heat (between 77 °C and 85 °C) to the soft tissue at the back of the throat, such as the soft palate and uvula, causing scarring of the tissue beneath the skin.
Vibrations can also be used to communicate between entirely different species; lycaenid (gossamer-winged butterfly) caterpillars, which are myrmecophilous (living in a mutualistic association with ants) communicate with ants in this way. The Madagascar hissing cockroach has the ability to press air through its spiracles to make a hissing noise as a sign of aggression; the death's-head hawkmoth makes a squeaking noise by forcing air out of their pharynx when agitated, which may also reduce aggressive worker honey bee behavior when the two are in close proximity.
The Ganeshida has a pair of small oral lobes and a pair of tentacles. The body is circular rather than oval in cross-section, and the pharynx extends over the inner surfaces of the lobes. The Thalassocalycida, only discovered in 1978 and known from only one species, are medusa-like, with bodies that are shortened in the oral-aboral direction, and short comb-rows on the surface furthest from the mouth, originating from near the aboral pole. They capture prey by movements of the bell and possibly by using two short tentacles.
It is in relation, behind, with the longus capitis, the superior cervical ganglion of the sympathetic trunk, and the superior laryngeal nerve; laterally, with the internal jugular vein and vagus nerve, the nerve lying on a plane posterior to the artery; medially, with the pharynx, superior laryngeal nerve, and ascending pharyngeal artery. At the base of the skull the glossopharyngeal, vagus, accessory, and hypoglossal nerves lie between the artery and the internal jugular vein. Unlike the external carotid artery, the internal carotid normally has no branches in the neck.
It was observed that upon opening her mouth, the ectoplasm gradually began to be formed on the tip of the tongue until it resembled a cherry. It then swelled up, sometimes to the extent of covering the medium’s body. When the ectoplasm retreated into the mouth, it diminished at the tip of the tongue into the likeness of a cherry, as it first appeared. None of the substance appeared at any time in the pharynx, disproving the idea that the ectoplasm was regurgitated cheesecloth, which is a cotton cloth.
Mucosa- associated lymphoid tissue is a diffuse system of small concentrations of lymphoid tissue found in various submucosal membrane sites of the body such as the gastrointestinal tract, mouth, nasal cavity, pharynx, thyroid gland, breast, lung, salivary glands, eye, skin and the human spleen. In 2016, the World Health Organization classified MZLs into three different types. Extranodal marginal zone lymphomas (EMZLs) are MZLs that develop in extranodal tissues. Most EMZLs develop in MALT and are often termed extranodal MZL of mucosa-associated lymphoid tissue or, more simply, MALT lymphomas.
Unusually, the male gonopore opens on the dorsal surface of the animal, above the pharynx, while the female reproductive system lacks any of the usual ducts and related structures found in other flatworms. The sperm is nonmobile and lacks flagella or cilia. Asexual reproduction by paratomy is common, and it usually leads to a chain of organisms (zooids), hence the name, from Latin catenula, small chain. Members of the symbiotic genus Paracatenula lack a digestive tract, and instead harbor intracellular chemoautotrophic bacterial symbionts that are assumed to provide their nutrition.
The pharyngeal plexus, with fibers from CN IX, CN X, and cranial part of CN XI, innervates all the muscles of the pharynx (except stylopharyngeus, which is innervated directly by a branch of CN IX). This includes the following muscles: palatopharyngeus, palatoglossus, musculus uvulae, the pharyngeal constrictors, salpingopharyngeus plus others. Note that the intrinsic muscles of the larynx are innervated by the vagus nerve but not by the pharyngeal plexus. Instead, they are innervated by the recurrent laryngeal nerve and the external branch of the superior laryngeal nerve, branches of the vagus.
The large, thin shell is nearly destitute of sculpture. It shows an unrecurved columella, a short, wide, straight siphonal canal, a wide shallow emargination representing the anal notch, and generally feeble anal fasciole, except in the very young. There is a sharp outer lip, unarmed aperture, and a sinusigera protoconch. The animal has a muzzle formed by a stout squarely truncated rostrum opening into a capacious pharynx, provided internally with a degenerate proboscis not capable of extrusion beyond the oral orifice, with a poison gland and a degenerate radula.
There are 2,300 species of ascidians and three main types: solitary ascidians, social ascidians that form clumped communities by attaching at their bases, and compound ascidians that consist of many small individuals (each individual is called a zooid) forming colonies up to several meters in diameter. Sea squirts feed by taking in water through a tube, the oral siphon. The water enters the mouth and pharynx, flows through mucus-covered gill slits (also called pharyngeal stigmata) into a water chamber called the atrium, then exits through the atrial siphon.
Nitrogenous waste, in the form of ammonia, is excreted directly from the blood through the walls of the pharynx, and expelled through the atrial siphon. Unusually, the heart of sea squirts alternates the direction in which it pumps blood every three to four minutes. There are two excitatory areas, one at each end of the heart, with first one being dominant, to push the blood through the ventral vessel, and then the other, pushing it dorsally. There are four different types of blood cell: lymphocytes, phagocytic amoebocytes, nephrocytes and morula cells.
Molgula pugetiensis is a Pacific tailless ascidian within the Roscovita clade of molgulids A notochord is formed early in development, and always consist of a row of exactly 40 cells. The nerve tube enlarges in the main body, and will eventually become the cerebral ganglion of the adult. The tunic develops early in embryonic life, and extends to form a fin along the tail in the larva. The larva also has a statocyst and a pigmented cup above the mouth, which opens into a pharynx lined with small clefts opening into a surrounding atrium.
Using the EST abundance profile through Unigene, NBEAL1 expression was discovered based on both body sites and health states. NBEAL1 shows expression in the brain, embryonic tissue, eye, intestine, kidney, liver, lung, mammary glands, ovaries, pancreas, pharynx, placenta, prostate, skin, stomach, testis, thyroid, and trachea. Based on transcripts per million, expression is highest in the stomach at 62 transcripts per million, with pancreas and trachea being next with their transcripts per million being 37 and 38, respectively. The lowest transcripts per million in the brain, eye, placenta and testis, all at 4 per million.
The virus replicates first within epithelial cells in the pharynx (which causes pharyngitis, or sore throat), and later primarily within B cells (which are invaded via their CD21). The host immune response involves cytotoxic (CD8-positive) T cells against infected B lymphocytes, resulting in enlarged, atypical lymphocytes (Downey cells). When the infection is acute (recent onset, instead of chronic), heterophile antibodies are produced. Cytomegalovirus, adenovirus and Toxoplasma gondii (toxoplasmosis) infections can cause symptoms similar to infectious mononucleosis, but a heterophile antibody test will test negative and differentiate those infections from infectious mononucleosis.
Mouths are also used as part of the mechanism for producing sounds for communication. To produce sounds, air is forced from the lungs over vocal cords in the larynx. In humans, the pharynx, the soft palate, the hard palate, the alveolar ridge, the tongue, the teeth and the lips are termed articulators and play their part in the production of speech. Varying the position of the tongue in relation to the other articulators or moving the lips restricts the airflow from the lungs in different ways producing a range of different sounds.
For example, denervation of the pharyngeal branch of the vagus nerve results in dorsal displacement of the soft palate (DDSP), and it has been suggested that this leads to a clinical syndrome which may include oral breathing. However, significant respiratory dysfunction including airway obstruction is observed with DDSP, and the animal cannot function normally in this state. Rabbits and rodents are also obligate nasal breathers. Like horses, the normal anatomical position of the epiglottis causes it to be engaged over the caudal rim of the soft palate, sealing the oral pharynx from the lower airways.
The anus is located on the ventral surface close to the posterior of the body. In some species, there are pores in the pharynx opening to the ventral surface; these contain valves and may allow egestion of any excess water swallowed while feeding. In the chaetonotidans, the excretory system consists of a single pair of protonephridia, which open through separate pores on the lateral underside of the animal, usually in the midsection of the body. In the macrodasyidans, there are several pairs of these opening along the side of the body.
Salvatoria koorineclavata is a species belonging to the phylum Annelida, a group known as the segmented worms. A related species in Australia has been described as Brania clavata and subsequently as Salvatoria clavata. While similar, the Australian species has a longer pharynx and proventricle; at the same time, blades of chaetae are present in the Australian species, with longer and upwards curved spines, which are straight in S. clavata; its pharyngeal tooth is located more anteriorly than in S. clavata. Other global species, like those in the genus Brania, are also similar to S. koorineclavata.
P. caledonicus A species of Pseudorhabdosynochus with captions for main parts and organs All species of Pseudorhabdosynochus are small animals, ranging 0.3–1 mm in length. As most monogeneans, they are flat, with an anterior head bearing four oculi and head glands, a main elongate body and a posterior haptor. The digestive system includes an anterior muscular pharynx, and two lateral intestinal branches (or caeca); as in all Platyhelminthes, there is no anus. The haptor, in the posterior part of the body, is a specialized organ used to attach to the host.
Distinct forms of mucin are produced in different organs: while MUC2 is prevalent in the intestine, MUC5AC and MUC5B are the main forms found in the human airway. In the airway, mucus is swept by the cilia of the respiratory epithelium, in a process called mucociliary clearance, and propelled out of the lungs and into the pharynx, which results in the removal of debris and pathogens from the airway. MUC5AC is overexpressed in allergic lung inflammation. Mucins are continuously made and secreted by goblet cells in order to repair and replace the existing mucus layer.
McGrory and Garber reported a significant prolongation of T. vaginalis infection in estrogenized BALB/c mice intravaginally preinoculated with cells of L. acidophilus ATCC 4356 (originating from the human pharynx) in comparison to animals that had not been pretreated. Although initial infectivity in the two groups was comparable, at day 24 post-infection 69% of L. acidophilus-inoculated mice still showed positive T. vaginalis cultures, compared with only 11% of mice not harboring lactobacilli. Other hypothesized risk factors of colonization by lactobacilli of low protective value in general include prior antimicrobial treatment and congenital factors.
More properly they are separately named the palatoglossal arch anteriorly and the palatopharyngeal arch posteriorly. The anterior arch is named from the palatoglossal muscle within, running from the soft palate to the tongue (glossus), while the posterior arch similarly contains the palatopharyngeal muscle running from the soft palate to the lateral pharynx. Between the arches lies a triangular space, the tonsillar fossa in which lies the palatine tonsil, another lymphoid organ. The external pharyngeal walls consisting of the four constrictor muscles form part of the mechanism of swallowing.
In the laboratory, the diet of L. abundans includes exclusively woodlice, which seem to constitute the main or only prey of most species in the genus Luteostriata. Luteostriata abundans captures the prey by the use of quick muscular movements and adhesive secretions. As soon as the planarian touches the prey, it coils around it and starts to secrete mucus. The planarian then glides over the prey to bring it to the level of the mouth and everts the pharynx, piercing the woodlouse between its segments and beginning the ingestion of its contents.
Retracted vowels are one of three articulatory dimensions of vowel space A retracted vowel is a vowel sound in which the body or root of the tongue is pulled backward and downward into the pharynx. The most retracted cardinal vowels are , which are so far back that the epiglottis may press against the back pharyngeal wall, and . Raised or front vowels may be partially retracted, for example by an adjacent uvular consonant or by vowel harmony based on retracted tongue root. In both cases, , for example, may be retracted to .
Cookiecutter sharks have adaptations for hovering in the water column and likely rely on stealth and subterfuge to capture more active prey. Its dark collar seems to mimic the silhouette of a small fish, while the rest of its body blends into the downwelling light via its ventral photophores. When a would-be predator approaches the lure, the shark attaches itself using its suctorial lips and specialized pharynx and neatly excises a chunk of flesh using its bandsaw-like set of lower teeth. This species has been known to travel in schools.
A cervical thymic cyst, also called thymopharyngeal duct cyst, is a fluid- filled mass that occurs when the thymopharyngeal duct, an embryonic structure connecting the nascent thymus with the embryonic pharynx, fails to close and disappear. A thymic cyst is typically a solitary mass on one side of the neck, and is usually found near the carotid sheath. Some cervical thymic cysts may extend into the mediastinum. The diagnostic process includes differentiating between other causes of neck masses in infants and children, including branchial cleft cysts and cystic hygromas.
The mouth is at the centre of the oral disc and leads into a tubular pharynx which descends for some distance into the body before opening into the gastrovascular cavity that fills the interior of the body and tentacles. Unlike other cnidarians however, the cavity is subdivided by a number of radiating partitions, thin sheets of living tissue, known as mesenteries. The gonads are also located within the cavity walls. The polyp is retractable into the corallite, the stony cup in which it sits, being pulled back by sheet-like retractor muscles.
Some members of the diverse genus Beroe may occasionally attain a length of up to , though most species and individuals are less than about 10 cm; Neis cordigera is among the largest species in the class, often exceeding in length. The body is melon or cone-shaped with a wide mouth and pharynx and a capacious gastrovascular cavity. Many meridional canals branch off this and form a network of diverticulae in the mesogloea. There are no tentacles but there are a row of branched papillae, forming a figure of eight around the aboral tip.
The digestive organs include an anterior, terminal mouth, an ovoid small pharynx, a long narrow oesophagus and a narrow posterior intestine with two lateral branches provided with numerous secondary branches; the intestine extends to the base of the haptor. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous very spines, a medio-dorsal vagina, a single large ovary and 51 to 58 ovoid testes located in the posterior part of the body, in the intercecal area, in two rows.
For long, the hypothesis that cephalochordata is sister taxon to craniata seemed to be widely accepted, likely influenced by the morphological distinction of tunicata from other chordates, with cephalochordates even being nicknamed ‘honorary vertebrates’. However, since 2006, studies based on the analysis of large sequence datasets strongly supported the Olfactores as a clade. The name olfactores comes from Latin olfactus ("sense of smell"), due to the pharynx development as to include respiratory functions, in contrast to the lack of respiratory system and specialized sense organs seen in cephalochordates such as the lancelet.
The peristomium is the first true body segment in an annelid worm's body in the anterior end. It is directly behind the prostomium and contains the mouth, tentacular cirri, and sometimes feeding palps, which may instead occur on the prostomium. If an eversible pharynx is present, it is contained in this segment as well, and can fill up to 20 segments when inverted, depending on the species. The prostomium and peristomium can be variously fused, either completely distinct, or comprising a joint structure of a peristomial ring and a tentacular crown.
A linguolabial trill is not known to be used phonemically, but occurs when blowing a raspberry. Snoring typically consists of vibration of the uvula and the soft palate (velum), which may be described as an ingressive velic trill.University of Hawaii Working Papers in Linguistics, 1969, Volume 1, Parts 4–6, Page 115.'Velic' is the term in Pike (1948) for velopharyngeal: articulation between the upper surface of the velum and the back wall of the naso-pharynx (Bertil Malmberg & Louise Kaiser, 1968, Manual of phonetics, North-Holland, p.
While commonly self-limiting, treatment with antibiotics may hasten resolution of symptoms. Diphtheria, a once common childhood respiratory infection, produces a neurotoxin which can result in a biphasic neuropathy. This neuropathy begins with paralysis and numbness of the soft palate and pharynx as well as bulbar weakness several days to weeks after the initial upper respiratory infection, followed by an ascending flaccid paralysis caused by an acute inflammatory demyelinating neuropathy after several more weeks. While antibiotics are effective at eradicating the bacterium, neurological sequelae of infection must be treated with diptheria antitoxin.
These parts differ in terms of their embryological development and nerve supply. The anterior tongue is, at its apex, thin and narrow. It is directed forward against the lingual surfaces of the lower incisor teeth. The posterior part is, at its root, directed backward, and connected with the hyoid bone by the hyoglossi and genioglossi muscles and the hyoglossal membrane, with the epiglottis by three glossoepiglottic folds of mucous membrane, with the soft palate by the glossopalatine arches, and with the pharynx by the superior pharyngeal constrictor muscle and the mucous membrane.
The pterygopalatine ganglion (of Meckel), the largest of the parasympathetic ganglia associated with the branches of the maxillary nerve, is deeply placed in the pterygopalatine fossa, close to the sphenopalatine foramen. It is triangular or heart-shaped, of a reddish-gray color, and is situated just below the maxillary nerve as it crosses the fossa. The pterygopalatine ganglion supplies the lacrimal gland, paranasal sinuses, glands of the mucosa of the nasal cavity and pharynx, the gingiva, and the mucous membrane and glands of the hard palate. It communicates anteriorly with the nasopalatine nerve.
When the tube enters the oropharynx and glides down the posterior pharyngeal wall, the patient may gag; in this situation the patient, if awake and alert, is asked to mimic swallowing or is given some water to sip through a straw, and the tube continues to be inserted as the patient swallows. Once the tube is past the pharynx and enters the esophagus, it is easily inserted down into the stomach. The tube must then be secured in place to prevent it from moving. There are several ways to secure an NG placement.
Once the egg is fertilized it becomes a zygote develops into a planktonic larva called planula and floats around the water column by currents. The planula is a type of zooplankton that is able to maneuver by cilia that cover its body. Eventually, the planula settles on a hard substrate and begins to undergo metamorphosis transforming it from a juvenile to an adult. The juvenile polyp begins to lay down a calcium carbonate corallite and begins early morphogenesis of tentacles, septa, and pharynx before larval settlement on the aboral end.
Some species, such as Myzostoma cirriferum, move about on the host; others, such as Myzostoma glabrum, remain stationary with the pharynx inserted in the mouth of the crinoid. Myzostoma deformator gives rise to a gall on the arm of the host, one joint of the pinnule growing round the worm so as to enclose it in a cyst while Myzostoma pulvinar lives in the alimentary canal of a species of Antedon. Fridtjof Nansen wrote in 1885 the thesis Bidrag til myzostomernes anatomi og histologi Bidrag til myzostomernes anatomi og histologi on the Myzostomida.
The mouthparts of insects that feed on fluids are modified in various ways to form a tube through which liquid can be drawn into the mouth and usually another through which saliva passes. The muscles of the cibarium or pharynx are strongly developed to form a pump. In nonbiting flies, the mandibles are absent and other structures are reduced; the labial palps have become modified to form the labellum, and the maxillary palps are present, although sometimes short. In Brachycera, the labellum is especially prominent and used for sponging liquid or semiliquid food.
Some glands are specialized to perform certain task such as producing silk or producing saliva in the palpi. While the corpora cardiaca produce PTTH, the corpora allata also produces jeuvanile hormones, and the prothorocic glands produce moulting hormones. In the digestive system, the anterior region of the foregut has been modified to form a pharyngial sucking pump as they need it for the food they eat, which are for the most part liquids. An esophagus follows and leads to the posterior of the pharynx and in some species forms a form of crop.
The association deals with the medical and surgical diseases of the upper aerodigestive tract, including the larynx, the pharynx, the tracheobronchial tree and the esophagus. The ABEA convenes each spring for a scientific meeting in which original research is presented to an international audience, in conjunction with other otolaryngology subspecialty societies under the auspices of COSM (Combined Otolaryngology Spring Meeting). In addition, the ABEA has endowments for several named lectures given at the annual meeting by noteworthy speakers in bronchoesophagology and allied fields. Continuing medical education courses have also been sponsored by the association.
A colony of Perophora multiclathrata consists of slender, branching stolons, with unstalked zooids growing at intervals. Each zooid is long and has about twenty tentacles surrounding the buccal siphon, alternately long and short. The pharynx has five rows of stigmata, some of which extend from the first row into the second. The musculature in the atrial wall is distinctive with horizontal and radial elements and a circular muscle fibre surrounding the base of the atrial siphon allowing the atrium to become pouched and the atrial siphon to be pulled inward.
Fossil specimen WDC CSG 255, including a Rhamphorhynchus with a Leptolepides fish trapped in the pharynx and caught in the jaws of an Aspidorhynchus Several limestone slabs have been discovered in which fossils of Rhamphorhynchus are found in close association with Aspidorhynchus. In one of these specimens, the jaws of an Aspidorhynchus pass through the wings of the Rhamphorhynchus specimen. The Rhamphorhynchus also has the remains of a small fish, possibly Leptolepides, in its throat. This slab, cataloged as WDC CSG 255, may represent two levels of predation; one by Rhamphorhynchus and one by Aspidorhynchus.
Members of Anchoromicrocotylinae are characterized by a symmetric haptor, with a sharp end that bears three pairs of larval hooks. The digestive system includes two oral suckers with papillary borders, a pharynx and an esophagus. The male genital system includes numerous testes located behind the ovary (post-ovarian testes), a vas deferens and a complex male copulatory organ, composed of: a male atrium, a penis, and a prostate vesicle. The female genital system include a complex ovary, a genito-intestinal canal, an ootype, a uterus, and a single dorsal unarmed vagina.
The stylopharyngeus is a long, slender muscle, cylindrical above, flattened below. It arises from the medial side of the base of the temporal styloid process, passes downward along the side of the pharynx between the superior pharyngeal constrictor and the middle pharyngeal constrictor, and spreads out beneath the mucous membrane. Some of its fibers are lost in the constrictor muscles while others, joining the palatopharyngeus muscle, are inserted into the posterior border of the thyroid cartilage. The glossopharyngeal nerve runs on the lateral side of this muscle, and crosses over it to reach the tongue.
The digestive system of the octopus begins with the buccal mass which consists of the mouth with its chitinous beak, the pharynx, radula and salivary glands. The radula is a spiked, muscular tongue- like organ with multiple rows of tiny teeth. Food is broken down and is forced into the oesophagus by two lateral extensions of the esophageal side walls in addition to the radula. From there it is transferred to the gastrointestinal tract, which is mostly suspended from the roof of the mantle cavity by numerous membranes.
Movements in the vocal cords are rapid, fundamental frequencies are usually between 80 and 300 Hz, thus preventing usage of ordinary video. Stroboscopic, and high-speed videos provide an option, but to see the vocal folds a fiberoptic probe leading to the camera must be positioned in the throat, which makes speaking difficult. In addition, placing objects in the pharynx usually triggers a gag reflex that stops voicing and closes the larynx. In addition, stroboscopic imaging is only useful when the vocal fold vibratory pattern is closely periodic.
The human voice produces sounds in the following manner: #Air pressure from the lungs creates a steady flow of air through the trachea (windpipe), larynx (voice box) and pharynx (back of the throat). #The vocal folds in the larynx vibrate, creating fluctuations in air pressure, known as sound waves. #Resonances in the vocal tract modify these waves according to the position and shape of the lips, jaw, tongue, soft palate, and other speech organs, creating formant regions and so different qualities of sonorant (voiced) sound. #Mouth radiates the sound waves into the environment.
Behind the blades is the mouth, located ventrally at the anterior end of the body. It leads successively into the pharynx, a short oesophagus, a crop (in some species), a stomach and a hindgut, which ends at an anus located just above the posterior sucker. The stomach may be a simple tube, but the crop, when present, is an enlarged part of the midgut with a number of pairs of ceca that store ingested blood. The leech secretes an anticoagulant, hirudin, in its saliva which prevents the blood from clotting before ingestion.
Since both the digestive system and the respiratory system are connected by the pharynx, there are many problems and diseases that occur when the body is unable to regulate passage of food and air into the appropriate tracts. Perhaps the most preventable cause of damage to these reflexes originates from smoking. One study has shown that, when compared to non-smokers, the threshold volumes (in other words the lowest volume at which one of these reflexes is triggered) for both the pharyngo-upper esophageal sphincter contractile reflex and reflexive pharyngeal swallowing is increased.
Upper respiratory tract (pharynx and larynx) and lower respiratory tract (trachea, bronchi, and lung) Risk factors for pulmonary aspiration include conditions which depress the level of consciousness (such as traumatic brain injury, alcohol intoxication, drug overdose, and general anesthesia). A decreased gag reflex, upper esophageal sphincter and lower esophageal sphincter tone, gastroesophageal reflux, full stomach, as well as obesity, stroke, and pregnancy can all increase the risk of aspiration in the semiconscious. Tracheal intubation or presence of a gastric tube (for example, a feeding tube) may also increase the risk.
An illustration of the pharyngeal jaws of a moray eel Pharyngeal jaws are a "second set" of jaws contained within the pharynx of many species of fish, distinct from the primary (oral) jaws. Pharyngeal jaws have been studied in moray eels where their specific action is noted. When the moray bites prey, it first bites normally with its oral jaws, capturing the prey. Immediately thereafter, the pharyngeal jaws are brought forward and bite down on the prey to grip it; they then retract, pulling the prey down the eel's esophagus, allowing it to be swallowed.
To varying degrees, different phonemes can be distinguished by the properties of their source(s) and their spectral shape. Voiced sounds (e.g., vowels) have at least one source due to mostly periodic glottal excitation, which can be approximated by an impulse train in the time domain and by harmonics in the frequency domain, and a filter that depends on, for example, tongue position and lip protrusion. On the other hand, fricatives, such as and , have at least one source due to turbulent noise produced at a constriction in the oral cavity or pharynx.
The digestive organs include an anterior, terminal mouth, an ovoid muscular pharynx, and a posterior intestine with two branches provided with small lateral diverticula and penetrate the haptor freely to its terminal end. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, with spines arranged in concentric circles, a dorsal vagina opening in front of the egg at the beginning of the seminal vesicle, a single ovary in form of a question mark, 13 ovoid or slightly spherical testes which are posterior to the ovary.
The oral disc has a central mouth, usually slit-shaped, surrounded by one or more whorls of tentacles. The ends of the slit lead to grooves in the wall of the pharynx known as siphonoglyphs; there are usually two of these grooves, but some groups have a single one. The tentacles are generally tapered and often tipped by a pore, but in some species they are branched, club-tipped, or reduced to low knobs. The tentacles are armed with many cnidocytes, cells that are both defensive and used to capture prey.
Some of the mesenteries form complete partitions with a free edge at the base of the pharynx, where they connect, but others reach only partway across. The mesenteries are usually found in multiples of twelve, and are symmetrically arranged around the central lumen. They have stomach lining on both sides, separated by a thin layer of mesoglea, and include filaments of tissue specialised for secreting digestive enzymes. In some species, these filaments extend below the lower margin of the mesentery, hanging free in the gastrovascular cavity as thread-like acontial filaments.
Obstructive apnea occurs when the airway passages are obstructed and little to no air exchange occurs, resulting in impaired breathing. In some cases, it occurs when patients are born with a small airway opening. Patients with obstructive apnea often have vigorous inspiratory effort but the efforts are still ineffective. Normally, the muscles at the level of the throat relax and dilate while asleep in order to open up airway however, patients with obstructive apnea may have decreased neuromuscular tone of the muscles responsible for dilating the pharynx during sleep.
Pharyngeal aspiration is often performed on mice and rats. Prior to introduction of the stubstance, the animal is anesthetized and its tongue extended, preventing the animal from swallowing the material and allowing it to be aspirated into the lungs over the course of at least two deep breaths. A liquid suspension of particles in saline solution is usually used, in a typical volume of 50 μL. Sometimes the substance is introduced into the larynx instead of the pharynx to avoid contamination from food particles and other contaminants present in the mouth.
These connections can stimulate appetite, satisfaction, and other homeostatic responses that have to do with eating. Distributed throughout the dorsal epithelium of the tongue, soft palate, pharynx, and upper part of the esophagus are taste buds that contain taste cells, which are peripheral receptors involved in gustatory system and react to chemical stimuli. Different sections of the tongue are innervated with the three cranial nerves. The facial nerve (VII) innervates the anterior two- thirds of the tongue, the glossopharyngeal nerve (IX) innervates the posterior one-third and the vagus nerve (X) innervates the epiglottis.
Their distensible stomachs allow sabertooth fish to swallow prey larger than themselves; their recurved teeth likely function in a manner similar to a snake's, preventing a captured fish from backing out and helping to guide the fish down the sabertooth's pharynx. Sabertooth fish are solitary animals; it is not known whether they undergo diel vertical migrations. Their reproductive habits are poorly studied; they are assumed to be nonguarding, pelagic spawners. True synchronous hermaphroditism with external fertilization is known in Evermannella indica and Odontostomops normalops, and the former species appears to spawn throughout the year.
Sandalwood oil has been widely used in folk medicine for treatment of common colds, bronchitis, skin disorders, heart ailments, general weakness, fever, infection of the urinary tract, inflammation of the mouth and pharynx, liver and gallbladder complaints and other maladies. Recently, the in vivo anti-hyperglycemic and antioxidant potentials of α-santalol and sandalwood oil were demonstrated in Swiss Albino mice. Additionally, different in vitro and in vivo parts of the plant have been shown to possess antimicrobial and antioxidant properties, possibly attributed to sesquiterpenoids, shikimic acid, etc.
Freshwater fish gills magnified 400 times The gills of vertebrates typically develop in the walls of the pharynx, along a series of gill slits opening to the exterior. Most species employ a countercurrent exchange system to enhance the diffusion of substances in and out of the gill, with blood and water flowing in opposite directions to each other. The gills are composed of comb-like filaments, the gill lamellae, which help increase their surface area for oxygen exchange. When a fish breathes, it draws in a mouthful of water at regular intervals.
The original description of Homalometron pallidum was given by Linton in 1899 and reads: > "Body very minutely spinose, white, translucent; acetabuhuni and oral sucker > about same size; outline of body, long oval; neck short, continuous with > body; greatest breadth in region of testes, near posterior end; ecaudate; > acetabuhum sessile; ranii of intestines simple, elongate ; esophagus as long > as pharynx; testes, two, in median line behind uterus; seminal vesicle > dorsal to ovary and posterior border of acetabulum; ovary between acetabulum > and testes, on right side; pharynx, subglobular; genital aperture in front > of acetabulum, on median line; vitelline glands lying at posterior end and > along sides of body as far as acetabulum; ova few, relatively large." > "Dimensions of specimen in formalin, given in millimeters: length, 2.72; > breadth, anterior 0.43, at acetabulum 0.89, middle 1.07; near posterior 0.36 > ; diameter of oral sucker, 0.26; diameter of acetabulum, 0.29; diameter of > ovary, 0.21; diameter of testes, 0.33 and 0.39; ova, 0.11 and 0.07 in the > two principal diameters." Stafford used these diagnostic characteristics when he formally described the species in 1904. He was criticized for doing so in 1907 by the German parasitologist Arthur Looss who considered the description insufficient, pointing out that it was not possible to use this description to distinguish this species from other similar parasitic trematodes.
In adults, fistulas may occur because of erosion into the trachea from nearby malignant tumours, which erode into both the trachea and the oesophagus. Initially, these often result in coughing from swallowed contents of the oesophagus that are aspirated through the trachea, often progressing to fatal pneumonia; unfortunately, there is rarely a curative treatment. A tracheo-oesophageal puncture is a surgically created hole between the trachea and the esophagus in a person who has had their larynx removed. Air travels upwards from the surgical connection to the upper oesophagus and the pharynx, creating vibrations that create sound that can be used for speech.
The tongue is long, extensible, and covered in sticky saliva able to pick up ants and termites. It has unusually well developed muscles, attached to a large hyoid bone and rooted to the top of the sternum. The entire oral cavity is modified to accommodate this tongue, and is so elongated that the back of the soft palate is level with the fifth cervical vertebra near the base of the neck, rather than at the top of the pharynx as in most other mammals. The jaw muscles and mandible are reduced, and the latter is particularly fragile.
As well as assisting in adherence to epithelial cells, some of these are also involved in attachment to immune effector cells. The initial catarrhal phase of infection produces symptoms similar to those of the common cold, and during this period, large numbers of bacteria can be recovered from the pharynx. Thereafter, the bacteria proliferate and spread further into the respiratory tract, where the secretion of toxins causes ciliostasis and facilitates the entry of bacteria to tracheal/bronchial ciliated cells. One of the first toxins to be expressed is tracheal cytotoxin, which is a disaccharide-tetrapeptide derived from peptidoglycan.
In 1997 he used the photolysis technique to study Caenorhabditis elegans. (commonly known as the roundworm). He used the technique to determine which neurotransmitters were being secreted by the intricate network of neurons in the worms’ pharynges and determine the neurotransmitters’ target cells. Hess summarized his methods and findings in the publication: “Identification of Chemical Synapses in the Pharynx: Caenorhabditis elegans.” In his article “How Fast Does the γ-Aminobutyric Acid Receptor Channel Open? Kinetic Investigations in the Microsecond Time Region Using a Laser-Pulse Photolysis Technique” published in 1999, Hess explores the GABAA receptor and its kinetics.
During embryonic development the medulla oblongata develops from the myelencephalon. The myelencephalon is a secondary vesicle which forms during the maturation of the rhombencephalon, also referred to as the hindbrain. The bulb is an archaic term for the medulla oblongata and in modern clinical usage the word bulbar (as in bulbar palsy) is retained for terms that relate to the medulla oblongata, particularly in reference to medical conditions. The word bulbar can refer to the nerves and tracts connected to the medulla, and also by association to those muscles innervated, such as those of the tongue, pharynx and larynx.
The mouth and pharynx have both cilia and well-developed muscles. In other parts of the canal system, the gastrodermis is different on the sides nearest to and furthest from the organ that it supplies. The nearer side is composed of tall nutritive cells that store nutrients in vacuoles (internal compartments), germ cells that produce eggs or sperm, and photocytes that produce bioluminescence. The side furthest from the organ is covered with ciliated cells that circulate water through the canals, punctuated by ciliary rosettes, pores that are surrounded by double whorls of cilia and connect to the mesoglea.
The ocelli are concerned in the detection of changes in light intensity, enabling the fly to react swiftly to the approach of an object. Like other insects, flies have chemoreceptors that detect smell and taste, and mechanoreceptors that respond to touch. The third segments of the antennae and the maxillary palps bear the main olfactory receptors, while the gustatory receptors are in the labium, pharynx, feet, wing margins and female genitalia, enabling flies to taste their food by walking on it. The taste receptors in females at the tip of the abdomen receive information on the suitability of a site for ovipositing.
A sarcophagid "bubbling" As ubiquitous insects, dipterans play an important role at various trophic levels both as consumers and as prey. In some groups the larvae complete their development without feeding, and in others the adults do not feed. The larvae can be herbivores, scavengers, decomposers, predators or parasites, with the consumption of decaying organic matter being one of the most prevalent feeding behaviours. The fruit or detritus is consumed along with the associated micro-organisms, a sieve-like filter in the pharynx being used to concentrate the particles, while flesh-eating larvae have mouth-hooks to help shred their food.
There are also two buccal suckers at the anterior extremity. The digestive organs include an anterior mouth, a pharynx, an oesophagus and a posterior intestine that bifurcates at or near level of genital pore in two lateral branches. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium armed with a corona of 17 hooks, two unarmed vaginal pores, with sub marginal dorsal longitudinal slit like apertures, situated behind the penis on each side of the body but not at the same level, a looped ovary and numerous testes para and post-ovarian.
The large cordate or sagittate leaves grow to a length of 20 to 90 cm on long petioles. Their araceous flowers grow at the end of a short stalk, but are not conspicuous; often hidden behind the leaf petioles. The corms of some species can be processed to make them edible, but the raw plants contain raphid or raphide crystals of calcium oxalate along with other irritants (possibly including proteases) that can numb and swell the tongue and pharynx; they cause difficulty in breathing, and sharp pain in the throat. The lower parts of the plant contain the highest concentrations of the poison.
As adults, most digeneans possess a terminal or subterminal mouth, a muscular pharynx that provides the force for ingesting food, and a forked, blind digestive system consisting of two tubular sacs called caeca (sing. caecum). In some species the two gut caeca join posteriorly to make a ring-shaped gut or cyclocoel. In others the caeca may fuse with the body wall posteriorly to make one or more anuses, or with the excretory vesicle to form a uroproct. Digeneans are also capable of direct nutrient uptake through the tegument by pinocytosis and phagocytosis by the syncitium.
The digestive organs include an anterior, terminal mouth, a pharynx nearly circular in outline, a short oesophagus and a posterior intestine with two lateral branches hidden in large part by the vitellaria and do not extend in the haptor. Each adult contains male and female reproductive organs. The reproductive organs include an anterior spacious genital atrium , armed with numerous somewhat conical spines, a medio-dorsal vagina, a single ovary and 14-24 testes that extend from the posterior edge of the ovary to a point a little in front of the posterior end of the vitellaria.
The region where the crescentic masses of the ectoderm and endoderm come into direct contact with each other constitutes a thin membrane, the buccopharyngeal membrane (or oropharyngeal membrane), which forms a septum between the primitive mouth and pharynx. In front of the buccopharyngeal area, where the lateral crescents of mesoderm fuse in the middle line, the pericardium is afterward developed, and this region is therefore designated the pericardial area. The buccopharyngeal membranes serve as a respiratory surface in a wide variety of amphibians and reptiles. In this type of respiration, membranes in the mouth and throat are permeable to oxygen and carbon dioxide.
The extension of the mesoderm takes place throughout the whole of the embryonic and extra-embryonic areas of the ovum, except in certain regions. One of these is seen immediately in front of the neural tube. Here the mesoderm extends forward in the form of two crescentic masses, which meet in the middle line so as to enclose behind them an area that is devoid of mesoderm. Over this area, the ectoderm and endoderm come into direct contact with each other and constitute a thin membrane, the buccopharyngeal membrane, which forms a septum between the primitive mouth and pharynx.
The adult form of A. cantonensis resides in the pulmonary arteries of rodents, where it reproduces. After the eggs hatch in the arteries, larvae migrate up the pharynx and are then swallowed again by the rodent and passed in the stool. These first stage larvae then penetrate or are swallowed by snail intermediate hosts, where they transform into second stage larvae and then into third stage infective larvae. Humans and rats acquire the infection when they ingest contaminated snails or paratenic (transport) hosts including prawns, crabs, and frogs, or raw vegetables containing material from these intermediate and paratenic hosts.
The study concludes that if this relationship represents causality then it is estimated that breast cancer might be prevented in 24% of postmenopausal women and 16% of pre-menopausal women. There is an established relationship between cancer of the upper aero-digestive tract (oral cavity, pharynx, larynx and esophagus) and fruit and vegetable consumption. An EPIC (European Prospective Investigation into Cancer and Nutrition) study was conducted during 1992-1998 in which 345,904 people were studied using a dietary questionnaire. During 1998 data was collected and an inverse association was found between fruit and vegetable intake and upper aero-digestive tract cancer occurrence.
During human embryogenesis, the mandibular arch and hyoid arch grow more rapidly than those behind them, with the result that the latter become, to a certain extent, telescoped within the former, and a deep depression, the cervical sinus, is formed on either side of the neck. This sinus is bounded in front by the hyoid arch, and behind by the thoracic wall; it is ultimately obliterated by the fusion of its walls. Sometimes, it can remain anterior to the sternocleidomastoid muscle. It can communicate with the skin (external cervical fistula) or with the pharynx (internal cervical fistula).
The irregular bones are bones which, from their peculiar form, cannot be grouped as long, short, flat or sesamoid bones. Irregular bones serve various purposes in the body, such as protection of nervous tissue (such as the vertebrae protect the spinal cord), affording multiple anchor points for skeletal muscle attachment (as with the sacrum), and maintaining pharynx and trachea support, and tongue attachment (such as the hyoid bone). They consist of cancellous tissue enclosed within a thin layer of compact bone. Irregular bones can also be used for joining all parts of the spinal column together.
External gills are the gills of an animal, most typically an amphibian, that are exposed to the environment, rather than set inside the pharynx and covered by gill slits, as they are in most fishes. Instead, the respiratory organs are set on a frill of stalks protruding from the sides of an animal's head. The axolotl has three pairs of external gills. This type of gill is most commonly observed on the aquatic larva of most species of salamanders, lungfish, and bichirs (which have only one large pair), and are retained by neotenic adult salamanders and some species of adult lungfish.
Oxygen can be absorbed through the lining of the mouth and pharynx, which is rich in blood vessels and acts as a "lung". Although adult swamp eels have virtually no fins, the larvae have large pectoral fins which they use to fan water over their bodies, thus ensuring gas exchange before their adult breathing apparatus develops. When about a fortnight old they shed these fins and assume the adult form. Most species of swamp eel are hermaphrodite, starting life as females and later changing to males, though some individuals start life as males and do not change sex.
Some combtooth blennies emerge to feed on land, and freshwater eels are able to absorb oxygen through damp skin. Mudskippers can remain out of water for considerable periods, exchanging gases through skin and mucous membranes in the mouth and pharynx. Swamp eels have similar well-vascularised mouth-linings, and can remain out of water for days and go into a resting state (aestivation) in mud. The anabantoids have developed an accessory breathing structure known as the labyrinth organ on the first gill arch and this is used for respiration in air, and airbreathing catfish have a similar suprabranchial organ.
Cnidocyte subtypes can be differentially localized in the animal. In the sea anemone Nematostella vectensis, the majority of its non-penetrant sticky cnidocytes, the spirocytes, are found in the tentacles, and are thought to help with prey capture by sticking to the prey. By contrast, the two penetrant types of cnidocytes present in this species display a much broader localization, on the outer epithelial layer of the tentacles and body column, as well as on the pharynx epithelium and within mesenteries. The diversity of cnidocytes types correlates with the expansion and diversification of structural cnidocyst genes like minicollagen genes.
Retrieved 2015-09-10."Chapter 53: The pharynx and larynx" Basic Human Anatomy. Retrieved 2015-09-10. It is divided into two parts by the projection of the vocal folds, between which is a narrow triangular opening, the rima glottidis. The portion of the cavity of the larynx above the vocal folds is called the vestibule; it is wide and triangular in shape, its base or anterior wall presenting, however, about its center the backward projection of the tubercle of the epiglottis. It contains the vestibular folds, and between these and the vocal folds are the ventricles of the larynx.
Consultation with a dietician is essential, in order to ensure that the individual with dysphagia is able to consume sufficient calories and nutrients to maintain health. In terminally ill patients, a failure of the reflex to swallow leads to a build-up of mucus or saliva in the throat and airways, producing a noise known as a death rattle (not to be confused with agonal respiration, which is an abnormal pattern of breathing due to cerebral ischemia or hypoxia). Abnormalities of the pharynx and/or oral cavity may lead to oropharyngeal dysphagia. Abnormalities of the esophagus may lead to esophageal dysphagia.
Candidiasis can be a marker for underlying disease, so the overall prognosis may also be dependent upon this. For example, a transient erythematous candidiasis that developed after antibiotic therapy usually resolves after antibiotics are stopped (but not always immediately), and therefore carries an excellent prognosis—but candidiasis may occasionally be a sign of more sinister undiagnosed pathology, such as HIV/AIDS or leukemia. It is possible for candidiasis to spread to/from the mouth, from sites such as the pharynx, esophagus, lungs, liver, anogenital region, skin or the nails. The spread of oral candidiasis to other sites usually occurs in debilitated individuals.
Most other turbellarians are carnivorous, either preying on small invertebrates or protozoans, or scavenging on dead animals. A few feed on larger animals, including oysters and barnacles, while some, such as Bdelloura, are commensal on the gills of horseshoe crabs. These turbellarians usually have an eversible pharynx, in other words, one that can be extended by being turned inside-out, and the mouths of different species can be anywhere along the underside. The freshwater species Microstomum caudatum can open its mouth almost as wide as its body is long, to swallow prey as large as itself.
When in water, the marbled swamp eel is able to use its fully functional gills to breathe, whereas on land it can breathe with the lining of the mouth and pharynx. It is a nocturnal predator and feeds on any small prey in its environment such as frogs, fish, spiders and insects. It moves through dense vegetation on river banks, searches shallow water areas for prey and descends into burrows to find concealed animals. When on land it lives in a burrow, and tunnels more deeply as the ground becomes drier so as to keep below the water table.
Acorn worms are dioecious, having separate biological sexes, although at least some species are also capable of asexual reproduction. They have paired gonads, which lie close to the pharynx and release the gametes through a small pore near to the gill slits. The female lays a large number of eggs embedded in a gelatinous mass of mucus, which are then externally fertilized by the male before water currents break up the mass and disperse the individual eggs. Acorn worm life cycle by M. Singh In most species, the eggs hatch into planktonic larvae with elongated bodies covered in cilia.
Tongue depressor A tongue depressor (sometimes called spatula"Spatula", Collins Dictionary of Medicine, Robert M. Youngson 2004, 2005) is a tool used in medical practice to depress the tongue to allow for examination of the mouth and throat. The most common modern tongue depressors are flat, thin, wooden blades, smoothed and rounded at both ends,Mirriam-Webster's Medical Dictionary but, historically, tongue depressors have been made of a variety of materials.Cohen, J Solis. Diseases of the Throat and Nasal Passages: A Guide to the Diagnosis and Treatment of Affections of the Pharynx, Oesophagus, Trachea, Larynx, and Nares.
Microvascular reconstruction repair is a common operation that is done on patients who see an Otorhinolaryngologist. Microvascular reconstruction repair is a surgical procedure that involves moving a composite piece of tissue from the patient's body and moves it to the head and or neck. Microvascular head and neck reconstruction is used to treat head and neck cancers, including those of the larynx and pharynx, oral cavity, salivary glands, jaws, calvarium, sinuses, tongue and skin. The tissue that is most common moved during this procedure is from the arms, legs, back, and can come from the skin, bone, fat, and or muscle.
Increasingly over the past few decades, C. ulcerans has been recognized as an emerging pathogen in over six countries across the globe including the United States, the United Kingdom, and Japan. C. diphtheriae is the causative agent of classical diphtheria, and C. ulcerans has been found to carry the same gene that codes for the diphtheria toxin. After swabbing lesions on a 53-year-old woman in Germany who experienced swelling of her pharynx and who developed a whitish pseudomembrane, doctors were able to grow C. ulcerans. This made it the first documented case of classical diphtheria caused by C. ulcerans in Germany.
TSH is regulated by thyrotropin-releasing hormone (TRH), which is produced by the hypothalamus. The thyroid gland develops in the floor of the pharynx at the base of the tongue at 3–4 weeks gestation; it then descends in front of the pharyngeal gut, and ultimately over the next few weeks, it migrates to the base of the neck. During migration, the thyroid remains connected to the tongue by a narrow canal, the thyroglossal duct. At the end of the fifth week the thyroglossal duct degenerates, and over the following two weeks the detached thyroid migrates to its final position.
In tetrapods, the pharynx is much shorter, and the esophagus correspondingly longer, than in fish. In the majority of vertebrates, the esophagus is simply a connecting tube, but in some birds, which regurgitate components to feed their young, it is extended towards the lower end to form a crop for storing food before it enters the true stomach. In ruminants, animals with four stomachs, a groove called the sulcus reticuli is often found in the esophagus, allowing milk to drain directly into the hind stomach, the abomasum. In the horse the esophagus is about in length, and carries food to the stomach.
A leech's nervous system is formed of a few large nerve cells; their large size makes leeches convenient as model organisms for the study of invertebrate nervous systems. The main nerve centre consists of the cerebral ganglion above the gut and another ganglion beneath it, with connecting nerves forming a ring around the pharynx a little way behind the mouth. A nerve cord runs backwards from this in the ventral coelomic channel, with 21 pairs of ganglia in segments six to 26. In segments 27 to 33, other paired ganglia fuse to form the caudal ganglion.
Pharynx A typical sea anemone is a sessile polyp attached at the base to the surface beneath it by an adhesive foot, called a basal or pedal disc, with a column-shaped body topped by an oral disc. Most are from in diameter and in length, but they are inflatable and vary greatly in dimensions. Some are very large; Urticina columbiana and Stichodactyla mertensii can both exceed a metre in diameter and Metridium farcimen a metre in length. Some species burrow in soft sediment and lack a basal disc, having instead a bulbous lower end, the physa, which anchors them in place.
Striped colonial anemone A primitive nervous system, without centralization, coordinates the processes involved in maintaining homeostasis, as well as biochemical and physical responses to various stimuli. There are two nerve nets, one in the epidermis and one in the gastrodermis; these unite at the pharynx, the junctions of the septa with the oral disc and the pedal disc, and across the mesogloea. No specialized sense organs are present but sensory cells include nematocytes and chemoreceptors. The muscles and nerves are much simpler than those of most other animals, although more specialised than in other cnidarians, such as corals.
Foix-Chavany-Marie Syndrome (FCMS), also known as Bilateral Opercular Syndrome, is a neuropathological disorder characterized by paralysis of the facial, tongue, pharynx, and masticatory muscles of the mouth that aid in chewing. The disorder is primarily caused by thrombotic and embolic strokes, which cause a deficiency of oxygen in the brain. As a result, bilateral lesions may form in the junctions between the frontal lobe and temporal lobe, the parietal lobe and cortical lobe, or the subcortical region of the brain. FCMS may also arise from defects existing at birth that may be inherited or nonhereditary.
Microcotyle peprili has the general morphology of all species of Microcotyle, with an elongate fusiform body tapered toward the anterior end and the haptor-bearing region, provided with a thin and smooth tegument, comprising an anterior part which contains most organs and a posterior part called the haptor. The tapering haptor is 0.12 mm long, and bears about 175 clamps similar in shape, arranged as two rows, one on each side. The clamps of the haptor attach the animal to the gill of the fish. There are also two lateral muscular buccal suckers anterior to the pharynx at the anterior extremity.
The branchial motor component of CN IX provides voluntary control of the stylopharyngeus muscle, which elevates the pharynx during swallowing and speech. Origin and central course The branchial motor component originates from the nucleus ambiguus in the reticular formation of the medulla Rostral medulla. Fibers leaving the nucleus ambiguus travel anteriorly and laterally to exit the medulla, along with the other components of CN IX, between the olive and the inferior cerebellar peduncle. Intracranial course Upon emerging from the lateral aspect of the medulla the branchial motor component joins the other components of CN IX to exit the skull via the jugular foramen.
Clostridium botulinum type C toxin has been incriminated as the cause of grass sickness, a condition in horses which occurs in rainy and hot summers in Northern Europe. The main symptom is pharynx paralysis. Domestic dogs may develop systemic toxemia after consuming C. botulinum type C exotoxin or spores within bird carcasses or other infected meat but are generally resistant to the more severe effects of Clostridium botulinum type C. Symptoms include flaccid muscle paralysis; dogs with breathing difficulties will require more intensive care monitoring. Muscle paralysis can lead to death due to cardiac and respiratory arrest.
A long terminal lappet is present, and is armed with two pairs of hooks. There are also two buccal suckers at the anterior extremity. The digestive organs include an anterior mouth, a pharynx larger than buccal suckers, a long wide oesophagus without diverticula and a posterior intestine that bifurcates in two lateral branches. The intestinal branches are provided with medial and lateral diverticula, joined in posterior part of opisthaptor and extending as a single branch with short diverticula to level of most posterior clamps, or not joined and one branch terminate some distance in front of the other.
The red gills inside a detached tuna head (viewed from behind) In bony fish, the gills lie in a branchial chamber covered by a bony operculum. The great majority of bony fish species have five pairs of gills, although a few have lost some over the course of evolution. The operculum can be important in adjusting the pressure of water inside of the pharynx to allow proper ventilation of the gills, so bony fish do not have to rely on ram ventilation (and hence near constant motion) to breathe. Valves inside the mouth keep the water from escaping.
The jaws squeeze the fruit while the tongue presses the fruit upwards onto the hard ridges of the palate; the juice being suctioned through the small opening at the rear of the mouth leading to a large pharynx. Occasionally, bats stuff their cheek pouches and fly to safe perches to eat where they move the contents from one cheek pouch to another, chewing with the large sharp teeth and swallowing the juices. Once the juice has all been extracted, they spit out the fibrous mass in the form of a pellet, large masses of which can be seen below trees where bats have been feeding.
Limnatis nilotica is unable to pierce skin with its jaws which are relatively small, soft and rounded; there are about thirty flat teeth with rough surfaces on the jaws, and small papillae which probably secrete saliva. Instead it enters its mammalian host through an orifice and sucks blood from mucous membranes inside the host, often the pharynx. The ingested blood is granular in nature, perhaps because the leech has scraped the tissues as it fed. The volume of blood consumed at any one time is much smaller than is typical for the European medicinal leech, but L. nilotica may stay in place for several weeks, feeding at intervals.
Ctenophores have no brain or central nervous system, but instead have a nerve net (rather like a cobweb) that forms a ring round the mouth and is densest near structures such as the comb rows, pharynx, tentacles (if present) and the sensory complex furthest from the mouth. Their nerve cells arise from the same progenitor cells as the colloblasts. The largest single sensory feature is the aboral organ (at the opposite end from the mouth). Its main component is a statocyst, a balance sensor consisting of a statolith, a tiny grain of calcium carbonate, supported on four bundles of cilia, called "balancers", that sense its orientation.
Ethyl acetate is an irritant of the conjunctiva and mucous membrane of the respiratory tract. Animal experiments have shown that, at very high concentrations, the ester has central nervous system depressant and lethal effects; at concentrations of 20,000 to 43,000 ppm (2.0–4.3%), there may be pulmonary edema with hemorrhages, symptoms of central nervous system depression, secondary anemia and liver damage. In humans, concentrations of 400 ppm cause irritation of the nose and pharynx; cases have also been known of irritation of the conjunctiva with temporary opacity of the cornea. In rare cases exposure may cause sensitization of the mucous membrane and eruptions of the skin.
The mouth and anus are originally at opposite ends of the animal, with the mouth only moving to its final (posterior) position during metamorphosis. The larva selects and settles on appropriate surfaces using receptors sensitive to light, orientation to gravity, and tactile stimuli. When its anterior end touches a surface, papillae (small, finger-like nervous projections) secrete an adhesive for attachment. Adhesive secretion prompts an irreversible metamorphosis: various organs (such as the larval tail and fins) are lost while others rearrange to their adult positions, the pharynx enlarges, and organs called ampullae grow from the body to permanently attach the animal to the substratum.
A freshwater crocodile at Basel Zoo in Switzerland In animal anatomy, the mouth, also known as the oral cavity, buccal cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds. It is also the cavity lying at the upper end of the alimentary canal, bounded on the outside by the lips and inside by the pharynx and containing in higher vertebrates the tongue and teeth. This cavity is also known as the buccal cavity, from the Latin bucca ("cheek"). Some animal phyla, including vertebrates, have a complete digestive system, with a mouth at one end and an anus at the other.
Hemichordates ("half chordates") have some features similar to those of chordates: branchial openings that open into the pharynx and look rather like gill slits; stomochords, similar in composition to notochords, but running in a circle round the "collar", which is ahead of the mouth; and a dorsal nerve cord—but also a smaller ventral nerve cord. There are two living groups of hemichordates. The solitary enteropneusts, commonly known as "acorn worms", have long proboscises and worm-like bodies with up to 200 branchial slits, are up to long, and burrow though seafloor sediments. Pterobranchs are colonial animals, often less than long individually, whose dwellings are interconnected.
Being constant swimmers required large amounts of oxygen which is achieved by water passing over their gills, which are in place of lungs to still have a large surface area through the various grooves in the gill tissue. The oxygen is obtained when they exhale and the water is pushed through their pharynx. Their blood flows in the opposite direction (countercurrent exchange) of the water over the gills in able to remove the maximum amount of oxygen from the water. They use a swim bladder to adjust their buoyancy by changing the volume of gas in the bladder to keep an overall constant volume for the bladder at different depths.
Fossil of Jianshanopodia decora, showing head region (upper left) compose of robust frontal appendage (right) and pharynx with rows of teeth (bottom left). Heads are more or less bulbous, and may bear a pair of pre-ocular, protocerebral appendages – for examples primary antennae or well-developed frontal appendages, which are individualized from the trunk lobopods (with the exception of Antennacanthopodia, which have two pairs of head appendages instead of one). Mouthparts may consist of rows of teeth or conical proboscis. The eyes may be represented by one or be numerous pairs of simple ocelli as has been shown in Paucipodia, Luolishania, Miraluolishania, Ovatiovermis, Onychodictyon, Hallucigenia, and possibly Aysheaia as well.
It subsequently tugs and slices at the earlier perforation to allow access to the now-liquefied interior of its prey. The jaws operate by moving backwards and forwards along the axis of the body (not in a side-to-side clipping motion as in arthropods), conceivably using a pairing of musculature and hydrostatic pressure. The pharynx is specially adapted for sucking, to extract the liquefied tissue; the arrangement of the jaws about the tongue and lip papillae ensures a tight seal and the establishment of suction. In social groups, the dominant female is the first to feed, not permitting competitors access to the prey item for the first hour of feeding.
Elafin, the skin-derived elastase inhibitor, has been shown to be a potent and specific inhibitor of both the porcine homolog of ELA1 and human leukocyte elastase in vitro. Elafin is expressed by epidermal keratinocytes under hyperproliferative conditions such as psoriasis and wound healing. It has also been reported to be present in many other adult epithelia that are exposed to environmental stimuli: tongue, plate, lingual tonsils, gingiva, pharynx, epiglottis, vocal fold, esophagus, uterine cervix, vagina, and hair follicles. In all these tissues, the presence of inflammatory cells is physiologic and elafin expression is believed to protect against leukocyte proteases, thereby helping to maintain epithelial integrity.
The digestive organs include an anterior, terminal mouth, a small and inconspicuous pharynx, an oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches; the branches extends far back into the haptor. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous spines, a medio-dorsal vagina, a single large ovary coiled across the middle of the body and 32 small testes which are posterior to the ovary. The eggs are elliptical, with a very long and delicate anterior filament that becomes coiled in a dense mass just near the opening of the uterus.
Two pedal nerves emerge from each pedal ganglion, one in the anterior and another in the posterior part, both innervating the foot. The pleural ganglion is located posterior to the cerebral ganglion and connected to the latter and the pedal ganglion by short connectives forming the pre- pharyngeal nerve ring. The pleural ganglia are connected by very short connectives to the visceral nerve cord, so that the latter is located at the very beginning of the pharynx. There are three distinct ganglia on the short visceral nerve cord: the left parietal ganglion, the fused subintestinal/visceral ganglion and the fused right parietal/supraintestinal ganglion.
Larvaceans have greatly improved the efficiency of food intake by producing a test, which contains a complicated arrangement of filters that allow food in the surrounding water to be brought in and concentrated prior to feeding. By regularly beating the tail, the larvacean can generate water currents within its house that allow the concentration of food. The high efficiency of this method allows larvaceans to feed on much smaller nanoplankton than most other filter feeders. Like most tunicates, larvaceans feed by drawing particulate food matter into their pharyngobranchial region, where food particles are trapped on a mucus mesh produced by the pharynx and drawn into the digestive tract.
He contributed the articles "Injuries of the Abdomen", "Diseases of the Mouth, Pharynx and Oesophagus", and "Diseases of the Intestines" in Holmes and Hulke's A System of Surgery: Theoretical and Practical, 3rd ed, 1883.Pollock, George David – Biographical entry – Plarr's Lives of the Fellows OnlineList of the Authors, p. xxxi of A System of Surgery, 1883, 3rd edition In 1846 Pollock was made F.R.C.S. He was President of the Pathological Society in 1875–1877 and President of the Royal Medical and Chirurgical Society for the years 1886 and 1887. He married in 1850 and upon his death in 1897 was survived by his widow and three of his five children.
Alcohol consumption probably increases the risk of developing cancer of the oral cavity, pharynx and esophagus by promoting the accumulation of cell divisions in the stem cells that maintain these tissues in homeostasis. Because the cytotoxic activity of ethanol is concentration-dependent, the risk of these cancers will not only increase with increasing amounts of ethanol, but also with increasing concentrations; an ounce of whisky is probably more carcinogenic when taken undiluted than when taken mixed with non-alcoholic beverages. The local cytotoxic effect of ethanol may also explain the known synergistic effect of alcohol and tobacco use on the risk of these cancers.
Being a brachycephalic breed, King Charles Spaniels can be sensitive to anesthesia. This is because in brachycephalic dogs, there is additional tissue in the throat directly behind the mouth and nasal cavity, known as the pharynx, and anesthesia acts as a muscle relaxant causing this tissue to obstruct the dogs' narrow airways. These narrow airways can decrease the dogs' ability to exercise properly and increase their susceptibility to heat stroke. Other congenital and hereditary disorders found in the King Charles Spaniel are hanging tongue, where a neurological defect prevents the tongue from retracting into the mouth; diabetes mellitus, which may be associated with cataracts; cleft palate and umbilical hernia.
Anthopleura stellula is unusual among sea anemones in that it can divide by transverse fission. This is not a common method of asexual reproduction among these sea anemones but tends to occur as a reaction to stress, such as when an anemone is experiencing a lowering of the salinity. The fission involves the animal forming a transverse constriction before dividing in two, the oral portion growing a new pedal disc and the basal portion growing a new oral disc and pharynx. There are a few other sea anemones such as Gonactinia prolifera that can divide in this way, and all are rather small, primitive sea anemones with simple internal structures.
Fossil specimen WDC CSG 255, including a Rhamphorhynchus with a Leptolepides fish trapped in the pharynx and caught in the jaws of an Aspidorhynchus Holotype of R. gemmingi, Teylers Museum, Haarlem Several limestone slabs have been discovered in which fossils of Rhamphorhynchus are found in close association with the ganoid fish Aspidorhynchus. In one of these specimens, the jaws of an Aspidorhynchus pass through the wings of the Rhamphorhynchus specimen. The Rhamphorhynchus also has the remains of a small fish, possibly Leptolepides, in its throat. This slab, cataloged as WDC CSG 255, may represent two levels of predation; one by Rhamphorhynchus and one by Aspidorhynchus.
The direction of their beat is targeted towards the pharynx, either upwards from the lower respiratory tract or downwards from the nasal structures. Goblet cells, so named because they are shaped like a wine goblet, are columnar epithelial cells that contain membrane-bound mucous granules and secrete mucus as part of the airway surface liquid (ASL), also known as the epithelial lining fluid, the composition of which is tightly regulated; the mucus helps maintain epithelial moisture and traps particulate material and pathogens moving through the airway. and determines how well mucociliary clearance works.Stanke F The Contribution of the Airway Epithelial Cell to Host Defense.
The digestive organs include an anterior, terminal mouth, a circular pharynx, a simple oesophagus and a posterior intestine bifurcates immediately posterior to genital atrium into two lateral branches provided with numerous secondary branches, both extends into the hohaptor, and are confluent. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous thorn-shaped spines, a medio-dorsal vagina opening approximately one fourth to one-fifth length of body from anterior end, a single tubular, irregularly looped ovary and 18-30 testes irregular in shape, closely packed and occupy the greatest part of the postovarian interintestinal field.
Miller notes different areas of emphasis between human medicine and what is reported as being practiced by the abductors. This could result from a difference in the purpose of the examinationroutine diagnosis and/or treatment versus scientific examination of an unfamiliar species, or it could be due to a different level of technology that renders certain kinds of manual procedures unnecessary. The abductors' areas of interest appear to be the cranium, nervous system, skin, reproductive system, and to a lesser degree, the joints. Systems given less attention than a human doctor would, or omitted entirely include cardiovascular system, the respiratory system below the pharynx and the lymphatic system.
BBC News Drinking over recommended limit 'raises cancer risk' 8 April 2011 The World Cancer Research Fund panel report Food, Nutrition, Physical Activity and the Prevention of Cancer: a Global Perspective finds the evidence "convincing" that alcoholic drinks increase the risk of the following cancers: mouth, pharynx and larynx, oesophagus, colorectum (men), breast (pre- and postmenopause).WCRF World Cancer Research Fund / American Institute for Cancer Research. Food, Nutrition, Physical Activity, and the Prevention of Cancer: a Global Perspective. Washington DC: AICR, 2007 Even light and moderate alcohol consumption increases cancer risk in individuals, especially with respect to squamous cell carcinoma of the esophagus, oropharyngeal cancer, and breast cancer.
The tongue is then elevated to the roof of the mouth (by the mylohyoid (mylohyoid nerve—V3), genioglossus, styloglossus and hyoglossus (the rest XII)) such that the tongue slopes downwards posteriorly. The contraction of the genioglossus and styloglossus (both XII) also contributes to the formation of the central trough. 4) Movement of the bolus posteriorly At the end of the oral preparatory phase, the food bolus has been formed and is ready to be propelled posteriorly into the pharynx. In order for anterior to posterior transit of the bolus to occur, orbicularis oris contracts and adducts the lips to form a tight seal of the oral cavity.
Areas of the body with more complex and/or more numerous sensory or motor connections are represented as larger in the homunculus, while those with less complex and/or less numerous connections are represented as smaller. The resulting image is that of a distorted human body, with disproportionately huge hands, lips, and face. In the sensory homunculus, below the areas handling sensation for the teeth, gums, jaw, tongue, and pharynx lies an area for intra-abdominal sensation. At the very top end of the primary sensory cortex, beyond the area for the toes, it has traditionally been believed that the sensory neural networks for the genitals occur.
Adults wander during the daytime in search of food since milkweeds live in patches that can vary in size and distance apart from one another. When a follicle is found, they inject saliva into it through their long rostrums, this pre-digests the seed and allows O. fasciatus to suck it up through their anterior pump and pharynx. Often there are multiple individuals feeding on one follicle, suggesting that a signal is released by feeding individuals that indicates a good food source. It has been shown that adults are more likely to find a food source when another adult is already feeding on it, further supporting the signaling concept.
The basic body form of an anthozoan is the polyp. This consists of a tubular column topped by a flattened area, the oral disc, with a central mouth; a whorl of tentacles surrounds the mouth. In solitary individuals, the base of the polyp is the foot or pedal disc, which adheres to the substrate, while in colonial polyps, the base links to other polyps in the colony. Anatomy of a stony coral polyp The mouth leads into a tubular pharynx which descends for some distance into the body before opening into the coelenteron, otherwise known as the gastrovascular cavity, that occupies the interior of the body.
The pharynx then grasps the prey, which is mixed with mucus and slowly swallowed by peristalsis and ciliary action. When the food reaches the coelenteron, extracellular digestion is initiated by the discharge of the septa-based nematocysts and the release of enzymes. The partially digested food fragments are circulated in the coelenteron by cilia, and from here they are taken up by phagocytosis by the gastrodermal cells that line the cavity. Most anthozoans supplement their predation by incorporating into their tissues certain unicellular, photosynthetic organisms known as zooxanthellae (or zoochlorellae in a few instances); many fulfil the bulk of their nutritional requirements in this way.
The esophagus, (American English) or oesophagus (British English; see spelling differences) (), informally known as the food pipe or gullet, is an organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to the stomach. The esophagus is a fibromuscular tube, about long in adults, which travels behind the trachea and heart, passes through the diaphragm and empties into the uppermost region of the stomach. During swallowing, the epiglottis tilts backwards to prevent food from going down the larynx and lungs. The word oesophagus is from Ancient Greek οἰσοφάγος (oisophágos), from οἴσω (oísō), future form of φέρω (phérō, “I carry”) + ἔφαγον (éphagon, “I ate”).
The basic anatomy of C. elegans includes a mouth, pharynx, intestine, gonad, and collagenous cuticle. Like all nematodes, they have neither a circulatory nor a respiratory system. The four bands of muscles that run the length of the body are connected to a neural system that allows the muscles to move the animal's body only as dorsal bending or ventral bending, but not left or right, except for the head, where the four muscle quadrants are wired independently from one another. When a wave of dorsal/ventral muscle contractions proceeds from the back to the front of the animal, the animal is propelled backwards.
The gustatory cortex consists of two primary structures: the anterior insula, located on the insular lobe, and the frontal operculum, located on the frontal lobe. Similarly to the olfactory cortex, the gustatory pathway operates through both peripheral and central mechanisms. Peripheral taste receptors, located on the tongue, soft palate, pharynx, and esophagus, transmit the received signal to primary sensory axons, where the signal is projected to the nucleus of the solitary tract in the medulla, or the gustatory nucleus of the solitary tract complex. The signal is then transmitted to the thalamus, which in turn projects the signal to several regions of the neocortex, including the gustatory cortex.
The lungs as main part of respiratory tract The lower respiratory tract is part of the respiratory system, and consists of the trachea and the structures below this including the lungs. The trachea receives air from the pharynx and travels down to a place where it splits (the carina) into a right and left bronchus. These supply air to the right and left lungs, splitting progressively into the secondary and tertiary bronchi for the lobes of the lungs, and into smaller and smaller bronchioles until they become the respiratory bronchioles. These in turn supply air through alveolar ducts into the alveoli, where the exchange of gases take place.
Nasopharyngeal airways is a soft rubber or plastic hollow tube that is passed through the nose into the posterior pharynx. Patients tolerate NPAs more easily than OPAs, so NPAs can be used when the use of an OPA is difficult, such as when the patient's jaw is clenched or the patient is semiconscious and cannot tolerate an OPA. NPAs are generally not recommended if there is suspicion of a fracture to the base of the skull, due to the possibility of the tube entering the cranium. However, the actual risks of this complication occurring compared to the risks of damage from hypoxia if an airway is not used are debatable.
Worms of the type species Astomonema jenneri are long and slender, with a maximum body diameter of 25.5 to 30 µm, but body length between 4.6 to 16.3 mm. Astomonema and the related genus Parastomonema are distinguished from other members of the family Siphonolaimidae by their lack of a mouth, highly reduced pharynx, and modified midgut that contains prokaryotic symbionts. Features that they share with other Siphonolaimidae include the overall body shape (long, slender and cylindrical, only slightly tapered at the front), conspicuous amphidial glands, large nerve ring, lack of setae on the body, and ability to heal wounds readily when the body is injured or broken.
The column or trunk is generally more or less cylindrical and may be plain and smooth or may bear specialist structures; these include solid papillae (fleshy protuberances), adhesive papillae, cinclides (slits) and small protruding vesicles. In some species the part immediately below the oral disc is constricted and is known as the capitulum. When the animal contracts, the oral disc, tentacles and capitulum fold inside the pharynx and are held in place by a strong sphincter muscle part way up the column. There may be a fold in the body wall, known as a parapet, at this point, and this parapet covers and protects the anemone when it is retracted.
Halzoun (Arabic:حلزون) is the local name of a buccopharyngeal infection occurring in Lebanon, probably caused by pentastomida larvae of Linguatula serrata (dog tongue worm) which wander into the throat of the human host after ingestion of infected raw liver or lymph nodes from sheep or goats. The word Halzoun means "Snail" in Arabic. Halzoun is considered to be a form of infection with Fasciola, whereby ingestion of infected raw sheep and goat livers may result in the attachment of adult living worms by their suckers to the pharyngeal mucosa causing edema of the soft palate, pharynx and larynx. This edema is accompanied by dyspnea and occasionally asphyxia.
The digestive organs include an anterior, terminal mouth, a globular to oval pharynx, a simple oesophagus bifurcating posteriorly to the genital pore and a posterior intestine with two branches provided with short lateral branches. Each adult contains male and female reproductive organs. The reproductive organs include an anterior large cup-shaped muscular genital atrium, densely armed with thorn-like spines, a dorsal vagina opening some distance posteriorly to the genital pore, a single tubular ovary shaped like a question mark, vitellaria and 11-21 testes oval or irregular in shape. Eggs are fusiform, with a very long anterior filament and much shorter posterior filament.
The IDPH report did not implicate the contaminated municipal well or exposure to the village's contaminated water as a reason for the elevated incidence of cancer in Crestwood, it also did not rule out exposure to the carcinogenically contaminated public drinking water supply as a factor for the higher cancer rates of Crestwood residents. Kidney cancer in males in Crestwood was almost double the level researchers had expected to find. Lung cancer in males and females in Crestwood was thirty five percent higher than what the researchers expected to find. Oral cavity and pharynx cancers in Crestwood men are seventy three percent higher than what researchers expected to find.
He was a special guest of the 777blog.hu Christian public portal interview series in March 2018, when he explained how the scientists serve God and science at the same time, so serving God through science. He also gave his point of view detailed on the issue: Kásler was a member of an international research group which came up with a result on the controversial prehistory of Hungarians which confirmed the fact that the members of the Árpád dynasty are certainly from the Eurasian blood line, as genetic markers can be used to map the pharynx genetic history. Researchers determined Béla III's genetic profile on his father's line.
In general, the alimentary system of Bothriolepis –which includes the organs involved in ingestion, digestion and removal of waste– can be described as simple and straight, unlike that of humans. It begins at the anterior end of the organism with a small mouth cavity located over the posterior area of the upper jaw plates. Posteriorly from the mouth, the alimentary system extends into a wider and dorso-ventrally flattened region called the pharynx, from which both the gills and lungs arise. The esophagus, which is also characterized as a dorso- ventrally flattened tube, extends from the mouth into the stomach and leads to a flattened ellipsoidal structure.
The respiratory tract antimicrobial defense system is a layered defense mechanism which relies on components of both the innate and adaptive immune systems to protect the lungs and the rest of the respiratory tract against inhaled microorganisms. In the first line of defense, inhaled bacteria are trapped by mucus and are swept toward the pharynx and are swallowed. Bacteria which penetrate the mucous layer are dealt with a second line of defense which includes antimicrobial peptides that are secreted by the surface epithelium of the respiratory tract which kill many strains of bacteria. Those bacteria that are resistant to antimicrobial peptides are killed by a variety of reactive oxygen species produced by phagocytes.
TransOral Robotic Surgery (TORS) is a modern surgical technique used to treat tumors of the mouth and throat via direct access through the mouth. TransOral Robotic Sleep Apnea (TORSA) surgery utilizes the same approach to open the upper airway of patients with obstructive sleep apnea. In TORS and TORSA procedures, the surgeon uses a surgical robot to view and access structures in the oral cavity (mouth) and pharynx (back of the throat) without any incisions through the neck, chin or lip (these incisions are necessary in traditional, non-robotic approaches). Current TORS techniques include radical tonsillectomy, resection of palate and base of skull tumors, hemiglossectomy and resection of tumors above and involving the larynx.
Periophthalmus gracilis (from Malaysia to northern Australia) Periophthalmus barbarus (from western Africa) Compared with fully aquatic gobies, these specialized fish present a range of peculiar anatomical and ethological adaptations that allow them to move effectively on land as well as in the water. As their name implies, these fish use their fins to move around in a series of skips. Mudskippers have the ability to breathe through their skin and the lining of their mouth (the mucosa) and throat (the pharynx); this is only possible when the mudskippers are wet, limiting them to humid habitats and requiring that they keep themselves moist. This mode of breathing, similar to that employed by amphibians, is known as cutaneous respiration.
On its lower surface, about 1 cm. in front of the foramen magnum, is the pharyngeal tubercle which gives attachment to the fibrous raphe of the pharynx. On either side of the middle line the longus capitis and rectus capitis anterior are inserted, and immediately in front of the foramen magnum the anterior atlantooccipital membrane is attached. The upper surface, which constitutes the lower half of the clivus, presents a broad, shallow groove which inclines upward and forward from the foramen magnum; it supports the medulla oblongata, and near the margin of the foramen magnum gives attachment to the tectorial membrane On the lateral margins of this surface are faint grooves for the inferior petrosal sinuses.
More specifically: # innervation of taste buds on the posterior 1/3 of tongue # general sensory innervation of posterior 1/3 of tongue, soft palate, palatine tonsils, upper pharynx and Eustachian tubes # innervation of baroreceptor cells in the carotid sinus # innervation of glomus type I chemoreceptor cells in the carotid body The central processes of the neurons which provide taste sensation synapse in the rostral portion of the solitary nucleus (also called the gustatory nucleus). The central processes of the neurons which provide general sensory information synapse in the spinal trigeminal nucleus. Finally, the central processes of the neurons which innervate the carotid sinus and carotid body synapse in the caudal portion of the solitary nucleus.
The anatomy of a typical mammalian respiratory system, below the structures normally listed among the "upper airways" (the nasal cavities, the pharynx, and larynx), is often described as a respiratory tree or tracheobronchial tree (figure on the left). Larger airways give rise to branches that are slightly narrower, but more numerous than the "trunk" airway that gives rise to the branches. The human respiratory tree may consist of, on average, 23 such branchings into progressively smaller airways, while the respiratory tree of the mouse has up to 13 such branchings. Proximal divisions (those closest to the top of the tree, such as the trachea and bronchi) function mainly to transmit air to the lower airways.
VetulicoliaThe taxon name, Vetulocolia, is derived from the type genus, Vetulicola, which is a compound Latin word composed of vetuli "old" and cola "inhabitant". is the name of a taxon (either phylum or subphylum in rank) encompassing several extinct Cambrian organisms. The vetulicolian body comprises two parts: a voluminous anterior forebody, tipped with an anteriorly positioned mouth and lined with a row of five round to oval-shaped features on each lateral side, which have been interpreted as gills (or at least openings in the vicinity of the pharynx); and a posterior section that primitively comprises seven segments and functions as a tail. All vetulicolians lack preserved appendages of any kind, having no legs, feelers or even eyes.
Nasal blockage is determined by at least two factors: 1) the size of the adenoids, and 2) the size of the nasal pharynx passageway. The adenoid usually reaches its greatest size by about age 5 years or so, and then fades away ("atrophies") by late childhood - generally by the age of 7 years. The lymphoid tissue remains under the mucosa of the nasopharynx, and could be seen under a microscope if the area was biopsied, but the mass is so reduced in size that the roof of the nasopharynx becomes flat rather than mounded. Just as the size of the adenoids is variable between individuals, so is the age at which adenoids atrophy.
Dissection of a sea anemone 5 – complete mesentery 10 – incomplete mesentery 11 – one of the two ostia In the phylum Cnidaria and the class Anthozoa, the mesenteries are sheet-like partitions that extend from the body wall of the animal into its gastrovascular cavity. They are composed of a layer of mesogloea sandwiched between two layers of gastrodermis. They can either be "complete", joining the gastrodermis of the body wall with that of the pharynx, or "incomplete", extending only part way into the cavity (the terms "perfect" and "imperfect" are sometimes used instead). They stretch from the pedal disc to the oral disc, and there are two perforations or ostia near the oral disc.
Diplogastrid nematodes are characterized by a distinct "two-lobed" pharynx (hence their name from the Greek διπλόος = "double" and γαστήρ = "stomach"), the second (posterior) lobe being composed mostly of glandular tissue. Most known species also have at least one tooth, which has presumably allowed them to access many new food sources compared with the related nematodes of Rhabditidae (including Caenorhabditis elegans), most species of which feed on bacteria. Several diplogastrid species also have a polyphenism in their mouthparts, allowing resource specialization within species. The wide array of feeding modes in the Diplogastridae is reflected by the relatively high diversity and complexity of their mouth structures, which show accelerated rates of evolution in comparison with the Rhabditidae.
Danish must have had stød already in the 16th century as a speech against the Danes by a Swedish bishop, Hemming Gadh, quoted by Johannes Magnus, mentions a particular guttural cough associated with Danish. Generally it has been considered that it must have arisen sometime in the late Middle Ages, perhaps around 1300. But some scholars have suggested that it goes back to the original population groups and that the line between stød and non-stød dialects represent an ancient invasion from the south. Stød was first mentioned in the 1743 second treatise on orthography of Jens Pedersen Høysgaard, where he described it as stop of the breath caused by the closing of the pharynx.
The digestive organs include an anterior, terminal mouth, a pharynx, a wide oesophagus bifurcating immediately behind the genital pore and a posterior intestine with two lateral branches provided with numerous secondary branches; the left branch extends into the haptor further backward than the right one. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium , armed with numerous very spines, a medio-dorsal vagina, a single ovary shaped like an interrogation mark and 13-18 testes occupying the whole postovarian intercoecal field. The eggs are fusiform, thick-shelled and tapering into a short blunt-pointed process at one end and a longer pointed process at the other.
Tarneaud says, "during singing, the vibration of the vocal folds impresses periodic shakes on the laryngeal cartilage which transmits them to the bones in the thorax via the laryngeal depressors, and to the bony structures in the head via the laryngeal elevators. Singers feel these shakes in the form of thoracic and facial vibrations". These internal phonatory sensations produced by laryngeal vibrations are called "resonance" by singers and teachers of singing. There are seven parts of the human body that act as resonators and of those seven the three most effective resonators that help amplify and create the most pleasing sounds are all located in the head: the pharynx, the oral cavity, and the nasal cavity.
Diseased or otherwise weakened animals appear to be more susceptible, and in the western Atlantic observations have been made of emaciated beached melon-headed whales with dozens to hundreds of recent and healing cookiecutter shark wounds, while such wounds are rare on nonemaciated beached whales. The impact of parasitism on prey species, in terms of resources diverted from growth or reproduction, is uncertain. The cookiecutter shark exhibits a number of specializations to its mouth and pharynx for its parasitic lifestyle. The shark first secures itself to the body surface of its prey by closing its spiracles and retracting its basihyal (tongue) to create pressure lower than that of the surroundings; its suctorial lips ensure a tight seal.
The risk of cancer associated with alcohol consumption is higher in tissues in closest contact on ingestion of alcohol, such as the oral cavity, pharynx and esophagus. This is explained by the fact that ethanol is a proven mutagen and in addition, metabolite of ethanol (acetaldehyde) produced in the liver is highly carcinogenic, thus explaining both local (mouth, throat, esophageal cancers) as well as distant (skin, liver, breast) cancers. It is well known that ethanol causes cell death at the concentrations present in alcoholic beverages. Few cells survive a one- hour exposure to 5–10% ethanol or a 15-second exposure to 30–40% ethanol in cell culture, where surviving cells might undergo genomic changes leading to carcinogenesis.
Luchsinger's examinations revealed that Johnson's larynx and pharynx showed no structural abnormality, but was small and symmetrical, corresponding to that of a coloratura soprano. The recordings verified what Luchsinger described as an extraordinarily large vocal range, from C (65 c.p.s.) to f4 sharp (2960 c.p.s.), or 5 octaves and 6 tones. Thirty seven years later, in 1992, consultant larynologist David Garfield-Davies recorded a video stroboscopic examination of Paul Newham demonstrating an extended vocal technique derivative of Wolfsohn's approach at the Ferens Institute Voice Clinic, part of the Middlesex Hospital which showed how extended vocal flexibility can be produced without damage to the vocal apparatus.Newham, P. (1992) 'Singing and psyche: towards voice movement therapy'.
The digestive organs include an anterior, terminal mouth, a spheroid pharynx, a simple oesophagus and a posterior intestine bifurcates posterior to genital atrium into two lateral branches provided with numerous secondary branches, the branches are confluent in posterior region of body proper, only one intestinal branch enters the haptor to about one-half total distance Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with numerous thorn-shaped spines, a medio-dorsal vagina opening approximately one fourth to one-fifth length of body from anterior end, a single tubular, irregularly looped ovary and 20-30 testes irregular in shape, closely packed and occupy the greatest part of the postovarian interintestinal field.
The hypostome has a groove along its dorsal surface forming a food canal (also known as the preoral canal) through which blood is drawn from the host and passed on to the mouth and pharynx. During blood feeding by Ixodid ticks, the liquid portion of the meal is first concentrated by removal of water and excess ions, which move across the gut epithelium and enter the ticks body cavity (hemocoele). These components are then taken up by the salivary glands which produce a watery saliva that is injected back into the host Cupp EW (1991), Biology of Ticks, Veterinary Clinics of North America, Small Animal Practice, Hoskins JD ed., 21(1): Jan 1992.
A diagram of a hypothetical ancestral mollusc with its nerve ring shown on the left side of the imageA circumesophageal or circumpharyngeal nerve ring is an arrangement of nerve ganglia around the esophagus/ pharynx of an animal. It is a common feature of nematodes, molluscs, and many other invertebrate animals, though it is absent in all vertebrate animals and is not structurally possible in simpler ones such as water bears. The nerve ring, also called a nerve collar, creates a complete and closed loop around the food-entry parts of the animal's anatomy. In a typical molluscan arrangement, these include the cerebral, pedal, and pleural ganglia, with the esophagus passing through the center of the ring.
Cancers of the mouth (lip and tongue), larynx (voice box), pharynx (throat), salivary glands, and nose/nasal passages are generally known as head and neck cancer. These cancers typically form in the squamous cells, which are the cells lining the moistened, mucosal locations of the head and neck, such as the nose, mouth and throat."University of Michigan Health System" group="Comprehensive Cancer Center"> Such squamous cell cancers are usually termed, squamous cell carcinoma of the head and neck or head and neck squamous-cell carcinoma (HNSCC). HNSCC typically occurs among middle-aged to elderly adults, but increased diagnoses of HNSCC in people under the age of 45 has been reported in recent years.
Fecundity is high, with a mean of 1618 oocytes per polyp. It is not clear why some scleractinian species brood their young, whereas others in similar habitats do not, but brooding does result in the ability of the larvae to settle almost immediately after liberation, and avoid a lengthy and risky planktonic stage. In some corals that brood their young, the larvae are released in batches along with quantities of mucus and often seem to be forced out by an expulsive effort by the polyp. This is not the case with F. curvatum; the larvae are released singly, without mucus, and appear to be wafted out by cilia on the wall of the polyp's pharynx.
Politzerization, also called the Politzer maneuver or method, is a medical procedure that involves inflating the middle ear by blowing air up the nose during the act of swallowing. It is often performed to reopen the Eustachian tube and equalise pressure in the sinuses. The procedure was derived from a medical experiment first performed by Ádám Politzer of Vienna that involved studying the air movement through the Eustachian tube by connecting a manometer to the external auditory canal meatus and another manometer in the pharynx. His first results on the technique were published in 1861 and he introduced a pear-shaped rubber air-bag for performing the procedure in 1863, which came to be known as a Politzer bag.
The male Mongolian gazelle and musk ox possess an air space (paired and two-chambered in the former) attached to the larynx, while bears have such spaces connected to the pharynx. Male howler monkeys have an unpaired rostroventral laryngeal air sac within the hyoid bulla (extension of the hyoid bone) and a pair of ventral laryngeal air spaces outside. The hammer-headed bat has a pouch in the palatine that connects to an enlarged nasopharynx region, in addition to paired cheek pouches which extend to the rostrum. Elephants possess a pharyngeal pouch associated with their larynx and hyoid apparatus, and their roars can also be modified by the nostrils in their trunks.
Accompanying the paralysis of the pharynx and the jaw muscles, inability of the subject to swallow was noted … Shortly after the injection was completed the subjects experienced a sensation of increased difficulty in breathing, as if an extra effort was necessary to maintain an adequate respiratory exchange. This sensation was present even though there was no objective evidence of impaired oxygenation or of carbon dioxide retention. It reached its maximum about five minutes after the injection, coinciding with the maximum depression of the vital capacity. In the majority of the experiments the respiratory rate was increased by about 50–100 per cent the first minutes after the injection of any one of the drugs while the tidal volume decreased.
A blockage of the lumbar anterior spinal cord artery due to polio (PV3) Poliovirus enters the body through the mouth, infecting the first cells with which it comes in contact – the pharynx and intestinal mucosa. It gains entry by binding to an immunoglobulin-like receptor, known as the poliovirus receptor or CD155, on the cell membrane. The virus then hijacks the host cell's own machinery, and begins to replicate. Poliovirus divides within gastrointestinal cells for about a week, from where it spreads to the tonsils (specifically the follicular dendritic cells residing within the tonsilar germinal centers), the intestinal lymphoid tissue including the M cells of Peyer's patches, and the deep cervical and mesenteric lymph nodes, where it multiplies abundantly.
Paralytic poliomyelitis may be clinically suspected in individuals experiencing acute onset of flaccid paralysis in one or more limbs with decreased or absent tendon reflexes in the affected limbs that cannot be attributed to another apparent cause, and without sensory or cognitive loss. A laboratory diagnosis is usually made based on recovery of poliovirus from a stool sample or a swab of the pharynx. Antibodies to poliovirus can be diagnostic, and are generally detected in the blood of infected patients early in the course of infection. Analysis of the patient's cerebrospinal fluid (CSF), which is collected by a lumbar puncture ("spinal tap"), reveals an increased number of white blood cells (primarily lymphocytes) and a mildly elevated protein level.
According to one of the nurses, he had cried for two days straight after waking up. He responded to authorities in writing and by nodding his head, although he did manage to say the word "no" when asked if he could afford a lawyer. Court documents released in August 2013, show that Tsarnaev had a skull fracture and gunshot wounds prior to being taken into custody. According to a doctor that treated him, Tsarnaev had a skull-base fracture, with injuries to the middle ear, the skull base, the lateral portion of his C1 vertebra, with a significant soft tissue injury, as well as injury to the pharynx, the mouth, and a small vascular injury.
The mouth is wide, the jaws strong and armed with formidable, generally sharply pointed, teeth, which enable the Muraena not only to seize its prey (which chiefly consists of other fishes) but also to inflict serious, and sometimes dangerous, wounds on its enemies. It attacks persons who approach its places of concealment in shallow water, and is feared by fishermen. At least one species, Muraena retifera, possesses an additional "raptorial pharyngeal jaw" within the pharynx, which is mobile and can be thrust forwards quickly to assist in grasping prey. Muraena helenaSome of the tropical Muraenas exceed a length of 5 feet (150 cm), but most of the species, among them the Mediterranean moray, are somewhat smaller.
The fish draws oxygen-rich water in through the mouth (left). It then pumps it over gills so oxygen enters the bloodstream, and allows oxygen- depleted water to exit through the gill slits (right) In bony fish, the gills lie in a branchial chamber covered by a bony operculum. The great majority of bony fish species have five pairs of gills, although a few have lost some over the course of evolution. The operculum can be important in adjusting the pressure of water inside of the pharynx to allow proper ventilation of the gills, so that bony fish do not have to rely on ram ventilation (and hence near constant motion) to breathe.
Like all echinoderms, sea cucumbers possess both a water vascular system that provides hydraulic pressure to the tentacles and tube feet, allowing them to move, and a haemal system. The latter is more complex than that in other echinoderms, and consists of well-developed vessels as well as open sinuses. A central haemal ring surrounds the pharynx next to the ring canal of the water vascular system, and sends off additional vessels along the radial canals beneath the ambulacral areas. In the larger species, additional vessels run above and below the intestine and are connected by over a hundred small muscular ampullae, acting as miniature hearts to pump blood around the haemal system.
The tensor veli palatini tenses the soft palate and by doing so, assists the levator veli palatini in elevating the palate to occlude and prevent entry of food into the nasopharynx during swallowing. The tensed palate consequently provides a stable platform for elevation of the pharynx during swallowing by the pharyngeal muscles. Since it is also attached to the lateral cartilaginous lamina of the auditory tube (also known as the Eustachian tube), it assists in its opening during swallowing or yawning to allow air pressure to equalize between the tympanic cavity and the outside air. Equalization of air pressure in the tympanic cavity is essential for preventing damage to the tympanic membrane and a resulting loss of hearing acuity.
His interest since that time was mainly the physics of the auditory system. There, he was the first to demonstrate physiologically that the innervation of the tensor tympani muscle was by the trigeminal nerve and that the innervation of the stapedial muscle was by the facial nerve. In another series of experiments, Politzer connected two manometers, one placed in the external auditory canal meatus and another in the pharynx, in order to study air movements through the Eustachian tube. In 1861, he published his first results on a new technique based on this knowledge, to treat internal ear diseases by insufflating the middle ear through the Eustachian tube, which obviated the need of its catheterization.
Indirect contact via contaminated surfaces is another possible cause of infection. Preliminary research indicates that the virus may remain viable on plastic (polypropylene) and stainless steel (AISI 304) for up to three days, but does not survive on cardboard for more than one day or on copper for more than four hours; the virus is inactivated by soap, which destabilises its lipid bilayer. Viral RNA has also been found in stool samples and semen from infected individuals. The degree to which the virus is infectious during the incubation period is uncertain, but research has indicated that the pharynx reaches peak viral load approximately four days after infection or the first week of symptoms, and declines after.
Contraction is achieved by pumping fluid out of the coelenteron, and reflation by drawing it in, a task performed by the siphonoglyphs in the pharynx which are lined with beating cilia. Most anthozoans adhere to the substrate with their pedal discs but some are able to detach themselves and move about, while others burrow into the sediment. Movement may be a passive drifting with the currents or in the case of sea anemones, may involve creeping along a surface on their base. Gas exchange and excretion is accomplished by diffusion through the tentacles and internal and external body wall, aided by the movement of fluid being wafted along these surfaces by cilia.
The oropharynx lies behind the oral cavity, extending from the uvula to the level of the hyoid bone. It opens anteriorly, through the isthmus faucium, into the mouth, while in its lateral wall, between the palatoglossal arch and the palatopharyngeal arch, is the palatine tonsil. The anterior wall consists of the base of the tongue and the epiglottic vallecula; the lateral wall is made up of the tonsil, tonsillar fossa, and tonsillar (faucial) pillars; the superior wall consists of the inferior surface of the soft palate and the uvula. Because both food and air pass through the pharynx, a flap of connective tissue called the epiglottis closes over the glottis when food is swallowed to prevent aspiration.
Tentacles of Aulactinia veratra catch passing prey and thrust it into the mouth in the middle of the oral disc Venus flytrap sea anemone is a suspension feeder and orients itself to face the current Sea anemones are typically predators, ensnaring prey of suitable size that comes within reach of their tentacles and immobilizing it with the aid of their nematocysts. The prey is then transported to the mouth and thrust into the pharynx. The lips can stretch to aid in prey capture and can accommodate larger items such as crabs, dislodged molluscs and even small fish. Stichodactyla helianthus is reported to trap sea urchins by enfolding them in its carpet-like oral disc.
Carl Otto von Eicken, Vertreter der Hals-, Nasen- und Ohrenheilkunde in Giessen von 1910-1922Brann - Einslin / edited by Rudolf Vierhaus Deutsche Biographie Enzyklopaedie In May 1935 and November 1944, he removed a polyp from the left vocal cord of Adolf Hitler. He is largely known for developing methods of examination for the throat and pharynx. The eponymous "Eicken's method" is facilitation of hypopharyngoscopy by means of forward traction on the cricoid cartilage by a laryngeal probe.Stedman's Medical Eponyms by Thomas Lathrop Stedman He was the author of over 100 medical works -- with Alfred Schulz van Treeck, he published an atlas on ear, nose and throat diseases, titled Atlas der Hals-, Nasen-, Ohren-Krankheiten (1940).
Intratracheal instillation overcomes some of these difficulties, but because a needle or tube is needed to access the trachea, it remains technically challenging and causes trauma to the animal, which can be a confounding factor. It also results in a less uniform distribution of the substance than inhalation, and bypasses effects from the upper respiratory tract. In pharyngeal aspiration, the substance is placed in the pharynx, which is higher in the respiratory tract, avoiding the major source of technical difficulty and trauma to the animal. The deposition pattern of pharyngeal aspiration is also more dispersed than that of intratracheal instillation, making it more similar to inhalation, and the lung responses are qualitatively similar.
The digestive organs include an anterior, terminal mouth, a spherical pharynx, an esophagus extending just posterior to the genital atrium, and a posterior intestine with two lateral branches ramified laterally and fusing in a single peduncle that extends into the haptor. Each adult contains male and female reproductive organs. The reproductive organs include an genital atrium, armed with numerous conical spines arranged in concentric circles, opening near anterior end, a single relatively long ovary, a uterus, vitelline glands that extends along both sides from the genital atrium to the beginning of the haptor and are joined posteriorly, and 13-24 testes which are posterior to the ovary. The eggs are elongate with a short filament at both poles.
Polyclinum planum colonies are variable in color ranging from olive greenish to brown to yellowish tan. Colonies of this species have a tough flexible peduncle located along one margin of the zooid-bearing lobe by which they are attached to a hard substrate. The pharynx of each zooid (colony member) has 13-17 rows of stigmata (ciliated openings) that they use for filter-feeding. The zooid- bearing lobe is roughly spherical in colonies less than 1 or 2 cm in diameter, the lobe becomes laterally compressed into sort of a tongue or pancake shape as the colony increases in size, and the lobe can be 2.5 to more than 10 times wider than it is thick.
There are also two oval buccal suckers at the anterior extremity. The digestive organs include an anterior, terminal mouth, an oval pharynx, an oesophagus and a posterior intestine that bifurcates in two lateral branches provided with many lateral branches ramifying especially on the outer side, the branches are not contiguous posteriorly and extend to near the posterior end of the haptor. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, armed with 24 hooks, a single vagina, an elongate cylindrical ovary and 40 small follicular testespost-ovarian, lying irregularly in the inter- crural field anteriorly in two rows and posteriorly in three rows in posterior half of body proper.
Pyroptosis, which can now be defined as gasdermin-mediated necrotic cell death, acts as an immune defence against infection. Hence, failure to express or cleave GSDMD can block pyroptosis and disrupt the secretion of IL-1β, and eventually unable to ablate the replicative niche of intracellular bacteria. Mutation of GSDMD is associated with various genetic diseases and human cancers, including brain, breast, lung, urinary bladder, cervical, skin, oral cavity, pharynx, colon, liver, cecum, stomach, pancreatic, prostate, oesophageal, head and neck, hematologic, thyroid and uterine cancers. Recently, studies have revealed that downregulation of GSDMD promotes gastric cancer proliferation due to the failure to inactivate ERK 1/2, STAT3 and PI3K/AKT pathways, which are involved in cell survival and tumour progression.
The geniculate ganglion (from Latin genu, for "knee") is a collection of pseudounipolar sensory neurons of the facial nerve located in the facial canal of the head. It receives fibers from the motor, sensory, and parasympathetic components of the facial nerve and sends fibers that will innervate the lacrimal glands, submandibular glands, sublingual glands, tongue, palate, pharynx, external auditory meatus, stapedius, posterior belly of the digastric muscle, stylohyoid muscle, and muscles of facial expression. The geniculate ganglion contains special sensory neuronal cell bodies for taste, from fibers coming up from the tongue through the chorda tympani and from fibers coming up from the roof of the palate through the greater petrosal nerve. Sensory and parasympathetic inputs are carried into the geniculate ganglion via the nervus intermedius.
The syndrome appears to be due to mutations in the gene tetratricopeptide repeat domain 37 (TTC37) which encodes the protein Thespin or the SKIV2L gene. This gene is expressed is in the adrenal gland, amniotic fluid, bladder, blood, bone, bone marrow, brain, cervix, connective tissue, ear, epididymis, eye, heart, intestine, kidney, liver, lung, lymph nodes, mammary glands, mouth, muscle, nerve, oesophagus, ovary, pancreas, pharynx, placenta, prostate, pituitary gland, salivary gland, testis, thyroid, tonsil, thymus, trachea, skin, uterus, spleen, spinal cord, stomach and vascular tissue. It is also expressed in ascites and various embryonic tissues. It is expressed at high level in the intestine, lung, lymph nodes, pituitary and vascular tissues. This gene is also known as KIAA0372, MGC32587 and TPR repeat protein 37.
Afflicted individuals typically are 55–60 years old and present with localized hardening and/or enlargement of the parotid gland or, less commonly, other salivary or lacrimal gland. Some 20% of cases present with or progress to involve local lymph nodes or the spleen to cause lymphadenopathy or splenomegaly while ~10% of cases present with or progress to a high-grade lymphoma, primarily diffuse large B-cell lymphoma. Histologically, the involved glands show lymphocyte-based lesions that are typical of EMZL with the infiltrating lymphocytes in some cases having morphological features resembling plasma cells. In individuals with more advanced disease, these lesions develop in the mucosal linings of the eye socket, nasal cavity, pharynx, airways of the lower respiratory tract, stomach, and/or thyroid gland.
The worms also participate in autoinfection, in which the rhabditiform larvae become infective filariform larvae, which can penetrate either the intestinal mucosa (internal autoinfection) or the skin of the perianal area (external autoinfection); in either case, the filariform larvae may follow the previously described route, being carried successively to the lungs, the bronchial tree, the pharynx, and the small intestine, where they mature into adults; or they may disseminate widely in the body. To date, occurrence of autoinfection in humans with helminthic infections is recognized only in Strongyloides stercoralis and Capillaria philippinensis infections. In the case of Strongyloides, autoinfection may explain the possibility of persistent infections for many years in persons not having been in an endemic area and of hyperinfections in immunodepressed individuals.
In these people, acetaldehyde accumulates after drinking alcohol, leading to symptoms of acetaldehyde poisoning, including the characteristic flushing of the skin and increased heart and respiration rates. Other symptoms can include severe abdominal and urinary tract cramping, hot and cold flashes, profuse sweating, and profound malaise. Individuals with deficient acetaldehyde dehydrogenase activity are far less likely to become alcoholics, but seem to be at a greater risk of liver damage, alcohol-induced asthma, and contracting cancers of the oro-pharynx and esophagus due to acetaldehyde overexposure. 400px This demonstrates that many of ethanol's toxic effects are mediated via the acetaldehyde metabolite and can therefore be mitigated by substances such as fomepizole which effectively reduces the conversion rate of ethanol to acetaldehyde in vivo.
APH-1 (anterior pharynx-defective 1) is a protein gene product originally identified in the Notch signaling pathway in Caenorhabditis elegans as a regulator of the cell-surface localization of nicastrin. APH-1 homologs in other organisms, including humans, have since been identified as components of the gamma secretase complex along with the catalytic subunit presenilin and the regulatory subunits nicastrin and PEN-2. The gamma-secretase complex is a multimeric protease responsible for the intramembrane proteolysis of transmembrane proteins such as the Notch protein and amyloid precursor protein (APP). Gamma-secretase cleavage of APP is one of two proteolytic steps required to generate the peptide known as amyloid beta, whose misfolded form is implicated in the causation of Alzheimer's disease.
In a 2012 description of WDC CSG 255, researchers proposed that the Rhamphorhynchus individual had just caught a Leptolepides while it was swimming. As the Leptolepides was travelling down its pharynx, a large Aspidorhynchus would have attacked from below the water, accidentally puncturing the left wing membrane of the Rhamphorhynchus with its sharp rostrum in the process. The teeth in its snout were ensnared in the fibrous tissue of the wing membrane, and as the fish thrashed to release itself the left wing of Rhamphorhynchus was pulled backward into the distorted position seen in the fossil. The encounter resulted in the death of both individuals, most likely because the two animals sank into an anoxic layer in the water body, depriving the fish of oxygen.
The papilla, in certain kinds of fish, particularly rays, sharks, and catfish, are small lumps of dermal tissue found in the mouth, where they are "distributed uniformly on the tongue, palate, and pharynx".B. G. Kapoor, H. E. Evans, E. A. Pevzner "The gustatory system in fish" in Advances in Marine Biology, Volume 13 (1976), F. S. Russell, Maurice Yonge (eds). They "project slightly above the surrounding multi-layered epithelium", and the taste buds of the fish are "situated along the crest or at the apex of the papillae". Unlike humans, fish have little or nothing in the way of a tongue, and those that have such an organ do not use it for tasting, but merely for cushioning the mouth and manipulating things within it.
Pelican swallowing a fish In many birds, the esophagus is largely a mere gravity chute, and in such events as a seagull swallowing a fish or a stork swallowing a frog, swallowing consists largely of the bird lifting its head with its beak pointing up and guiding the prey with tongue and jaws so that the prey slides inside and down. In fish, the tongue is largely bony and much less mobile and getting the food to the back of the pharynx is helped by pumping water in its mouth and out of its gills. In snakes, the work of swallowing is done by raking with the lower jaw until the prey is far enough back to be helped down by body undulations.
In general, features of an ideal supraglottic airway include the ability to bypass the upper airway, produce low airway resistance, allow both positive pressure as well as spontaneous ventilation, protect the respiratory tract from gastric and nasal secretions, be easily inserted by even a nonspecialist, produce high first-time insertion rate, remain in place once in seated position, minimize risk of aspiration, and produce minimal side effects. A nasopharyngeal airway is a soft rubber or plastic tube that is passed through the nose and into the posterior pharynx. Nasopharyngeal airways are produced in various lengths and diameters to accommodate for gender and anatomical variations. Functionally, the device is gently inserted through a patient's nose after careful lubrication with a viscous lidocaine gel.
He insisted strongly upon the connection between deafness and disease of the naso-pharynx. At first he practised freely the removal of the tonsils as an aid to recovery from deafness, but in later life experience led him to modify his views, and he performed tonsillectomy much less often. Yearsley learnt, too, the value of an artificial tympanum in the relief of certain forms of deafness, and he very justly recommended the use of the simplest form of film in preference to the more complex tympana employed by some of his contemporaries. Yearsley was less scientific than either George Pilcher or Joseph Toynbee, and, though original in his views and bold in expressing his opinions, he too often spoilt his cause by his controversial temperament.
Gas exchange in mammals occurs between this alveolar air (which differs significantly from fresh air) and the blood in the alveolar capillaries. The gases on either side of the gas exchange membrane equilibrate by simple diffusion. This ensures that the partial pressures of oxygen and carbon dioxide in the blood leaving the alveolar capillaries, and ultimately circulates throughout the body, are the same as those in the FRC. The marked difference between the composition of the alveolar air and that of the ambient air can be maintained because the functional residual capacity is contained in dead-end sacs connected to the outside air by long, narrow, tubes (the airways: nose, pharynx, larynx, trachea, bronchi and their branches and sub-branches down to the bronchioles).
Smallpox was not notably infectious in the prodromal period and viral shedding was usually delayed until the appearance of the rash, which was often accompanied by lesions in the mouth and pharynx. The virus can be transmitted throughout the course of the illness, but this happened most frequently during the first week of the rash, when most of the skin lesions were intact. Infectivity waned in 7 to 10 days when scabs formed over the lesions, but the infected person was contagious until the last smallpox scab fell off. Smallpox was highly contagious, but generally spread more slowly and less widely than some other viral diseases, perhaps because transmission required close contact and occurred after the onset of the rash.
B. canadensis fossil in the Field Museum of Natural History, Chicago Life restoration of B. canadensis Extending posteriorly from the trunk carapace are paired ventral sacs that extend to the anterior end of the spiral intestine. The sacs seem to originate at the pharynx as a single median tube, which then broadens posteriorly and eventually splits into two sacs that may be homologous to the lungs of certain dipnoans and tetrapods. It has been hypothesized that these lungs, coupled with the jointed arms and rigid, supportive skeleton, would have allowed Bothriolepis to travel on land. Additionally, as Robert Denison states, because there is no evidence of connection between the external naris and mouth, Bothriolepis likely breathed similarly to present-day lungfish, i.e.
Head I (actually begun in the winter of 1948) and Head II show formless pieces of flesh that broadly resemble human heads; they have half- open eyes and a pharynx, though it is positioned much higher than would be expected in a human. Heads III, IV and V show fully formed busts recognisable as men, and are characterised by a haunted atmosphere.Zweite, 83 These two broad ideas coalesce in Head VI, which is as physiologically tortured as the first two paintings, and as spectral as the middle three. In Head VI the figure has developed and is now shown wearing vestments, the first indication in Bacon's work of the influence of Velázquez,Dawson, 52 while the focus has become the open mouth and the study of the human scream.
Shuldham graduated from Trinity College, Dublin. Among Shuldham's friends was Lewis Carroll, a homeopath and a stammerer, both matters that were of great interest to Shuldham. He was uncle and guardian to the twin artist prodigies, Edward Julius Detmold and Charles Maurice Detmold, nurturing their interest in art and natural history, and in 1899 helping to produce their first book Pictures From Birdland, with 24 of their chromolithographic plates of exotic birds, and accompanying verses by Shuldham. He was the author of numerous books on health topics including The family homoeopathist, Headaches: their causes and treatment, The health of the skin, Coughs and their cure, Stammering and its rational treatment, Clergyman's sore throat, or follicular disease of the pharynx, and contributed case histories and articles to homeopathic publications.
A mouth opened between the tentacles, leading internally to a pharynx, a large lentil-shaped stomach, a narrower straight intestine, and an anus at the end of the "tail." The tentacles were softer than the body and probably extensible. A dark line running down the center of each tentacle and connecting with the head is tentatively reconstructed as a hydrostatic canal and/or vascular system; if this interpretation is correct, the tentacles might have been controlled by fluid pressure, and individuals could have fed by snaring either small prey or edible particles in the tentacles and bringing the tentacles to the mouth, as in living sea cucumbers. Structures on the back of the head have been noted as potential pharyngeal pores, which suggests a relationship with early echinoderms.
Skin candidiasis Vaginal yeast infection Nail candidiasis (onychomycosis) Signs and symptoms of candidiasis vary depending on the area affected. Most candidal infections result in minimal complications such as redness, itching, and discomfort, though complications may be severe or even fatal if left untreated in certain populations. In healthy (immunocompetent) persons, candidiasis is usually a localized infection of the skin, fingernails or toenails (onychomycosis), or mucosal membranes, including the oral cavity and pharynx (thrush), esophagus, and the genitalia (vagina, penis, etc.); less commonly in healthy individuals, the gastrointestinal tract, urinary tract, and respiratory tract are sites of candida infection. In immunocompromised individuals, Candida infections in the esophagus occur more frequently than in healthy individuals and have a higher potential of becoming systemic, causing a much more serious condition, a fungemia called candidemia.
The ascending palatine artery arises close to the origin of the facial artery and passes up between the styloglossus and stylopharyngeus to the side of the pharynx along which it is continued between the superior pharyngeal constrictor and the medial pterygoid muscle to near the base of the skull. It divides near the levator veli palatini muscle into two branches: one supplies and follows the course of this muscle, and, winding over the upper border of the superior pharyngeal constrictor, supplies the soft palate and the palatine glands, anastomosing with its fellow of the opposite side and with the descending palatine branch of the maxillary artery; the other pierces the superior pharyngeal constrictor and supplies the palatine tonsil and auditory tube, anastomosing with the tonsillar branch of the facial artery and the ascending pharyngeal artery.
The parapharyngeal space is shaped like an inverted pyramid. Lateral and inferior to the parapharyngeal space is the carotid sheath, containing the internal carotid artery and cranial nerves IX, X and XI. Behind both the parapharyngeal space and carotid space lies the retropharyngeal space, and deep to this a potential space known as the danger space. The danger space serves as an important pathway for complicated infections of the posterior pharynx to enter the chest and spinal column. Anterior to the parapharyngeal space is the masticator space which contains the lower dental row, muscles of mastication, the inferior alveolar nerve as well as branches of cranial nerve V. Lateral to the parapharyngeal space lies the parotid space, which contains the parotid gland, the external carotid artery and cranial nerve VII.
The eugaleaspidiforms, such as Eugaleaspis (bottom left) have a horseshoe-shaped headshield and a slit-shaped median dorsal opening, which imitates the aspect of the headshield of osteostracans. Headshield of Nochelaspis Headshield of Laxaspis The defining characteristic of all galeaspids was a large opening on the dorsal surface of the head shield, which was connected to the pharynx and gill chamber, and a scalloped pattern of the sensory-lines. The opening appears to have served both the olfaction and the intake of the respiratory water similar to the nasopharyngeal duct of hagfishes.Fossil jawless fish from China foreshadows early jawed vertebrate anatomy The galeaspids are characterized by a large median dorsal opening in the anterior part of the headshield that serves as both a common nostril and the main water intake device.
Oropharyngeal cancer (OPC) also known as tonsil cancer, is a disease in which abnormal cells with the potential to both grow locally and spread to other parts of the body are found in the tissue of the part of the throat (oropharynx) that includes the base of the tongue, the tonsils, the soft palate, and the walls of the pharynx. The two types of oropharyngeal cancers are HPV-positive oropharyngeal cancer, which is caused by an oral human papillomavirus infection; and HPV-negative oropharyngeal cancer, which is linked to use of alcohol, tobacco, or both. OPC is diagnosed by biopsy of observed abnormal tissue in the throat. OPC is staged according to the appearance of the abnormal cells on the biopsy coupled with the dimensions and the extent of the abnormal cells found.
The IPA first distinguished epiglottal consonants in 1989, with a contrast between pharyngeal and epiglottal fricatives, but advances in laryngoscopy since then have caused specialists to re-evaluate their position. Since a trill can be made only in the pharynx with the aryepiglottic folds (in the pharyngeal trill of the northern dialect of Haida, for example), and incomplete constriction at the epiglottis, as would be required to produce epiglottal fricatives, generally results in trilling, there is no contrast between (upper) pharyngeal and epiglottal based solely on place of articulation. Esling (2010) thus restores a unitary pharyngeal place of articulation, with the consonants being described by the IPA as epiglottal fricatives differing from pharyngeal fricatives in their manner of articulation rather than in their place: Edmondson et al. distinguish several subtypes of pharyngeal consonant.
Dissected frog: 1 Right atrium, 2 Liver, 3 Aorta, 4 Egg mass, 5 Colon, 6 Left atrium, 7 Ventricle, 8 Stomach, 9 Left lung, 10 Spleen, 11 Small intestine, 12 Cloaca Many amphibians catch their prey by flicking out an elongated tongue with a sticky tip and drawing it back into the mouth before seizing the item with their jaws. Some use inertial feeding to help them swallow the prey, repeatedly thrusting their head forward sharply causing the food to move backwards in their mouth by inertia. Most amphibians swallow their prey whole without much chewing so they possess voluminous stomachs. The short oesophagus is lined with cilia that help to move the food to the stomach and mucus produced by glands in the mouth and pharynx eases its passage.
In a 2012 description of WDC CSG 255, researchers proposed that the Rhamphorhynchus individual had just caught a Leptolepides while it was flying low over a body of water. As the Leptolepides was travelling down its pharynx, a large Aspidorhynchus would have attacked from below the water, puncturing the left wing membrane of the Rhamphorhynchus with its sharp rostrum. The teeth in its snout were ensnared in the fibrous tissue of the wing membrane, and as the fish thrashed to release itself the left wing of the Rhamphorhynchus was pulled backward into the distorted position seen in the fossil. The encounter resulted in the death of both individuals, most likely because the two animals sank into an anoxic layer in the water body, depriving the fish of oxygen.
An upper gastrointestinal series, also called a barium meal, is a series of radiographs used to examine the gastrointestinal tract for abnormalities. A contrast medium, usually a radiocontrast agent such as barium sulfate mixed with water, is ingested or instilled into the gastrointestinal tract, and X-rays are used to create radiographs of the regions of interest. The barium enhances the visibility of the relevant parts of the gastrointestinal tract by coating the inside wall of the tract and appearing white on the film. This in combination with other plain radiographs allows for the imaging of parts of the upper gastrointestinal tract such as the pharynx, larynx, esophagus, stomach, and small intestine such that the inside wall lining, size, shape, contour, and patency are visible to the examiner.
In the unconscious patient, the priority is airway management, to avoid a preventable cause of hypoxia. Common problems with the airway of patient with a seriously reduced level of consciousness involve blockage of the pharynx by the tongue, a foreign body, or vomit. At a basic level, opening of the airway is achieved through manual movement of the head using various techniques, with the most widely taught and used being the "head tilt — chin lift", although other methods such as the "modified jaw thrust" can be used, especially where spinal injury is suspected, although in some countries, its use is not recommended for lay rescuers for safety reasons. Higher level practitioners such as emergency medical service personnel may use more advanced techniques, from oropharyngeal airways to intubation, as deemed necessary.
Species of Sphaerosyllis, however, always exhibit papillae on the pharyngeal opening, their pharyngeal tooth is conical and is always located on or very near to the anterior margin of the pharynx. They usually count with a short proventricle, itself provided with large muscle cell rows, large posterior acicula (which is distally bent at 90°), blades of compound chaetae which are short and unidentate, and offspring developing ventrally, females without capillary notochaetae, only present on males. Sphaerosyllis horrockensis, Sphaerosyllis belizensis, and Sphaerosyllis centroamericana were transferred to Erinaceusyllis under these distinguishing characteristics. At the same time, Prosphaerosyllis is close to Erinaceusyllis, but its species' pharyngeal teeth are rhomboidal to oval and located near the middle of their pharynges; also their antennae are short, tentacular and their dorsal cirri have a bulbous cirrophore and retractile cirrostyle.
The disease is therefore now regarded as a NK/T cell malignancy, is grouped with other Epstein-Barr virus-associated lymphoproliferative diseases and is classified by the World Health Organization (2017 update) as a manifestation of the well-defined disease, extranodal NK/T-cell lymphoma, nasal type (ENKTCL-NT). ENKTCL-NT is a rare type of lymphoma that commonly involves the nasal cavity, oral cavity, and/or pharynx but less commonly can also involve the eye, larynx, lung, gastrointestinal tract, skin, and various other tissues. Patients presenting with highly localized midline facial disease fit the historical definition of lethal midline granuloma. These cases, unlike other cases ENKTCL-NT that have more widespread disease, often show no or relatively little progression of their disease over long periods of time.
Extranodal NK/T-cell lymphoma, nasal type (ENKTCL-NT) (also termed angiocentric lymphoma, nasal-type NK lymphoma, NK/T-cell lymphoma, polymorphic/malignant midline reticulosis, and lethal midline granuloma) is a rare type of lymphoma that commonly involves midline areas of the nasal cavity, oral cavity, and/or pharynx At these sites, the disease often takes the form of massive, necrotic, and extremely disfiguring lesions. However, ENKTCL-NT can also involve the eye, larynx, lung, gastrointestinal tract, skin, and various other tissues. ENKTCL-NT mainly afflicts adults; it is relatively common in Asia and to lesser extents Mexico, Central America, and South America but is rare in Europe and North America. In Korea, ENKTCL-NT often involves the skin and is reported to be the most common form of cutaneous lymphoma after mycosis fungoides.
In certain cases, absence of the gag reflex and pharyngeal sensation can be a symptom of a number of severe medical conditions, such as damage to the glossopharyngeal nerve, the vagus nerve, or brain death. In unilateral (one-sided) glossopharyngeal nerve (CN IX- sensory component) damage, there will be no gag response when touching the pharyngeal wall on the same side of the damaged nerve. With one-sided vagal nerve (CN X- motor component) damage, the soft palate will elevate and pull toward the intact side regardless of the side of the pharynx that is touched. This is because the sensory component is intact on both sides, but only the motor nerves supplying one side of the soft palatine and pharyngeal muscles is working, therefore the contraction of the muscles in the reflex is asymmetrical.
The gamma secretase complex consists of four individual proteins: PSEN1 (presenilin-1), nicastrin, APH-1 (anterior pharynx-defective 1), and PEN-2 (presenilin enhancer 2). Recent evidence suggests that a fifth protein, known as CD147, is a non-essential regulator of the complex whose absence increases activity. Presenilin, an aspartyl protease, is the catalytic subunit; mutations in the presenilin gene have been shown to be a major genetic risk factor for Alzheimer's disease and modulates immune cell activity. In humans, two forms of presenilin and two forms of APH-1 have been identified in the genome; one of the APH homologs can also be expressed in two isoforms via alternative splicing, leading to at least six different possible gamma secretase complexes that may have tissue- or cell type specificity.
There are also two spherical or oval buccal suckers at the anterior extremity. The digestive organs include an anterior, terminal funnel shaped and muscular mouth, a large and oval pharynx, a broad oesophagus and a posterior intestine that bifurcates in two lateral branches with numerous short outer and few short intercrural branches, posteriorly terminating independently behind the last testis, the right branche slightly over-reach the left. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, a muscular and conical penis, with a basal bulb and a distal corona of 10-12 recurved hooks, a single unarmed dorsal vagina, an inverted 'U' shaped ovary, and 9-14 irregularly oval or somewhat rectangular testes post-ovarian, and extend to the base of the haptor in the intercrural space.
P. surinamensis acts as the intermediate host for the parasitic roundworms Oxyspirura mansoni and Oxyspirura parvorum, which infect the eyes of poultry. O. mansoni, known as the chicken eyeworm among other names, can cause eye problems ranging from mild conjunctivitis to severe ophthalmia and serious vision impairment in its final hosts, which include chickens, turkeys, guineafowl and peafowl. Its life cycle involves eggs passing through a bird's lachrymal duct, being swallowed and passed in the bird's feces, a P. surinamensis cockroach eating the feces, larvae emerging in the cockroach, the bird eating the cockroach, and finally the eye worm larvae migrating up the oesophagus and pharynx to the bird's eye. While O. mansoni is not present in Europe, it is present in many areas of the world, particularly the tropical and subtropical environments where P. surinamensis is permanently established.
The flange near the food pipe (esophageal flange) is more rigid than the tracheal flange, near the windpipe. The one-way valve can be molded in one piece with the prosthesis and is often supported by a fluoroplastic valve seat (a colored ring that is tightly secured into the shaft of the prosthesis, adding rigidity and which is radiopaque). All voice prostheses have a safety strap, which is cut off in indwelling devices after the prosthesis is put in place; in non-indwelling devices the strap is not removed and is taped to the neck. A voice prosthesis has a one-way valve near the esophageal flange that enables pulmonary air to pass into the esophagus and pharynx for sound production and prevents content from the food pipe, such as liquids or saliva, from entering the trachea.
Following on from the above diagram, if the exhaled air is breathed out through the mouth on a cold and humid conditions, the water vapor will condense into a visible cloud or mist. Usually, air is breathed in and out through the nose. The nasal cavities (between the nostrils and the pharynx) are quite narrow, firstly by being divided in two by the nasal septum, and secondly by lateral walls that have several longitudinal folds, or shelves, called nasal conchae, thus exposing a large area of nasal mucous membrane to the air as it is inhaled (and exhaled). This causes the inhaled air to take up moisture from the wet mucus, and warmth from the underlying blood vessels, so that the air is very nearly saturated with water vapor and is at almost body temperature by the time it reaches the larynx.
The facial artery arises in the carotid triangle from the external carotid artery a little above the lingual artery and, sheltered by the ramus of the mandible, passes obliquely up beneath the digastric and stylohyoid muscles, over which it arches to enter a groove on the posterior surface of the submandibular gland. It then curves upward over the body of the mandible at the antero-inferior angle of the masseter; passes forward and upward across the cheek to the angle of the mouth, then ascends along the side of the nose, and ends at the medial commissure of the eye, under the name of the angular artery. The facial artery is remarkably tortuous. This is to accommodate itself to neck movements such as those of the pharynx in deglutition; and facial movements such as those of the mandible, lips, and cheeks.
Its parasympathetic root is derived from the nervus intermedius (a part of the facial nerve) through the greater petrosal nerve. In the pterygopalatine ganglion, the preganglionic parasympathetic fibers from the greater petrosal branch of the facial nerve synapse with neurons whose postganglionic axons, vasodilator, and secretory fibers are distributed with the deep branches of the trigeminal nerve to the mucous membrane of the nose, soft palate, tonsils, uvula, roof of the mouth, upper lip and gums, and upper part of the pharynx. It also sends postganglionic parasympathetic fibers to the lacrimal nerve (a branch of the Ophthalmic nerve, also part of the trigeminal nerve) via the zygomatic nerve, a branch of the maxillary nerve (from the trigeminal nerve), which then arrives at the lacrimal gland. The nasal glands are innervated with secretomotor fibers from the nasal branches.
There are also two buccal septate suckers at the anterior extremity. The digestive organs include an anterior, terminal mouth, a pharynx, and a posterior intestine with two branches provided with only a few short branches towards the median side, the left branch is longer than the right, and both branches extends for a certain distance into the haptor. Each adult contains male and female reproductive organs. The reproductive organs include a genital atrium opening a little in front of the point of bifurcation of the alimentary canal, armed with conical slightly curved spines, unarmed vagina opening middorsally behind the common genital opening, a single ovary, with an anterior portion shaped as in inversed V and a posterior portion somewhat S-shaped, about 40 small testes posterior to the ovary and occupying a little less than one-fifth the whole length of the body.
The digestive organs include an anterior, terminal mouth, a muscular rounded pharynx slightly larger than oral sucker, an oesophagus without diverticula and a posterior intestine bifurcating at the level of the copulatory organ in two with two lateral branches; the intestinal branches are provided with diverticula on both sides, terminating at the end of the haptor. Each adult contains male and female reproductive organs. The reproductive organs include an anterior heart-shaped genital atrium, armed with spines, a dorsal vagina which was not observed, a single question mark- shaped ovary, and 14-18 rounded or oval testes which are posterior to the ovary and arranged in two rows. The species can be distinguished from the most closely related species Microcotyle branchiostegi by the muscular cirrus armed with spines that is absent in M. branchiostegi, and by the number of clamps.
For Crosti, there is not only the chest voice and head voice; there is a kind of intermediate emission that he calls palatal voice, and that is a slight modification of the breast voice. The palatal voice is produced at the glottis level following the same mechanism as the chest voice itself (vibrating strings in all their length), but it differs from the latter in that the resonance, instead of being made above all in the thorax, is supported under the palatal vault by an appropriate arrangement of the pharynx, the soft palate. The vocal breath, sent to the frontal sinuses and striking directly at the upper walls of the palate, contracts the roundness, majesty and softness to which the nasal cavities it passes, without vibrating them, however, add sound still. It is also in this register that the richest sounds of an organ occur.
Like the olfactory system, the taste system is defined by its specialized peripheral receptors and central pathways that relay and process taste information. Peripheral taste receptors are found on the upper surface of the tongue, soft palate, pharynx, and the upper part of the esophagus. Taste cells synapse with primary sensory axons that run in the chorda tympani and greater superficial petrosal branches of the facial nerve (cranial nerve VII), the lingual branch of the glossopharyngeal nerve (cranial nerve IX), and the superior laryngeal branch of the vagus nerve (Cranial nerve X) to innervate the taste buds in the tongue, palate, epiglottis, and esophagus respectively. The central axons of these primary sensory neurons in the respective cranial nerve ganglia project to rostral and lateral regions of the nucleus of the solitary tract in the medulla, which is also known as the gustatory nucleus of the solitary tract complex.
The digestive organs include an anterior, terminal mouth, a subspherical pharynx, a long thin oesophagus without lateral diverticula and a posterior intestine that bifurcates at level of genital atrium in two lateral branches apparently fused just anterior to the haptor; the left branch extends into haptor. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, comprising the anterior atrium proper and two posterior "pockets". The atrium proper is shaped as inverted heart, armed with numerous conical spines of similar sizes; the spines are more dense in the centre than in lateral parts, arranged as one main anterior group and two postero-lateral smaller groups called “pockets”, a vagina with a middorsal pore visible in most specimens, posterior to genital atrium, a single complex ovary and 14–29 testes, post-ovarian, occurring in 2 rows generally intercaecal, in posterior half of body proper.
Although in experiments on synaptosomes, α-LTX triggered non-calcium dependent exocytosis of vesicles containing acetylcholine, glutamate and GABA,Role of calcium in neurotransmitter release evoked by alpha-latrotoxin or hypertonic sucrose - Khvotchev et al. both glutamate and GABA have been ruled out as the sole neurotransmitters responsible for emodepside's action) which then acts on the post-synaptic membrane (i.e. the pharyngeal/muscle membrane) of the nematode, having an inhibitory effect thereby either inducing paralysis or inhibiting pharyngeal pumping, both of which ultimately result in the death of the organism. Diagram Mutational studies involving LAT-1 knockout and LAT-2 gene deletion mutants have revealed that the role of latrophilin receptors in the different tissues that they are expressed differs between subtypes, with LAT-1 being expressed in the pharynx of C.elegans (thereby modulating pharyngeal pumping) and LAT-2 having a role in locomotion.
Vocal structures Observations made by vocal pedagogues, medical doctors and physiologists, documented in several vocal treatises as well as physiological and anatomical writings from the early 19th century, are particularly revealing with regard to training different vocal registers in the corresponding operatic tradition. Accordingly, many authors have mentioned the importance of specific muscular adjustments in both the vocal tract and the larynx for producing the “mixed” (voce faringea) voice. Bennati, an ear, nose and throat specialist at the Paris Opera and trained singer, could study the physiological differences between vocal registers on himself and the best singers of the time. Both a contraction of the pharynx by lateral approximation of the pharyngeal walls in the area of the isthmus faucium and a narrowing of the aryepiglottic space were identified by him and other maestri and physiologists of that time as a requirement for the production of the mixed register.
The digestive organs include an anterior, terminal mouth, a muscular pharynx, a moderate length oesophagus ending a little behind the genital atriuml pore,and a posterior intestine with two branches provided with numerous lateral diverticula on the inner and outer sides except for the terminal portion of the branche. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium opening a little in front of the hind end of the oesophagus and armed with slightly recurved conical spines, a dorsal vagina opening much behind the posterior end of the oesophagus as the common genital opening is before it, a single irregularly S-shaped ovary, and 50 small testeswhich are posterior to the ovary, extending from the hind end of the ovary to near the hind end of the body proper. The sequence of the species' ITS2 rDNA gene has been published.
The digestive organs include an anterior, terminal mouth, a pharynx, an oesophagus and a posterior intestine with two branches of un equal lengths, provided with numerous bifurcating branches on the inner and outer sides and one of them extends much more backwards into the haptor. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium provided with numerous conical slightly recurved spines and opening a short distance in front of the hind end of the oesophagus, a dorsal vagina opening behind the front end of the intestine, a single ovary "somewhat like a hastily written capital E", vitellaria extending from near the hind end of the oesophagus to the hind end of the body and 15 large testes which are posterior to the ovary and extends from the hind end of the ovary to a little in front of the posterior end of the vitellaria.
According to preliminary research, quenching of thirst - the homeostatic mechanism to stop drinking - occurs via two neural phases: a "preabsorptive" phase which signals quenched thirst many minutes before fluid is absorbed from the stomach and distributed to the body via the circulation, and a "postabsorptive" phase which is regulated by brain structures sensing to terminate fluid ingestion. The preabsorptive phase relies on sensory inputs in the mouth, pharynx, esophagus, and upper gastrointestinal tract to anticipate the amount of fluid needed, providing rapid signals to the brain to terminate drinking when the assessed amount has been consumed. The postabsorptive phase occurs via blood monitoring for osmolality, fluid volume, and sodium balance, which are collectively sensed in brain circumventricular organs linked via neural networks to terminate thirst when fluid balance is established. Thirst quenching varies among animal species, with dogs, camels, sheep, goats, and deer replacing fluid deficits quickly when water is available, whereas humans and horses may need hours to restore fluid balance.
The external carotid artery is covered by the skin, superficial fascia, Platysma, deep fascia, and anterior margin of the Sternocleidomastoideus; it is crossed by the hypoglossal nerve, by the lingual, ranine, common facial, and superior thyroid veins; and by the Digastricus and Stylohyoideus; higher up it passes deeply into the substance of the parotid gland, where it lies deep to the facial nerve and the junction of the temporal and internal maxillary veins. Medial to it are the hyoid bone, the wall of the pharynx, the superior laryngeal nerve, and a portion of the parotid gland. Lateral to it, in the lower part of its course, is the internal carotid artery. Posterior to it, near its origin, is the superior laryngeal nerve; and higher up, it is separated from the internal carotid by the Styloglossus and Stylopharyngeus, the glossopharyngeal nerve, the pharyngeal branch of the vagus, and part of the parotid gland.
The esophagus, the frontmost part of the digestive system, is 2.9 to 3.9 (3.6) mm long and is lined by 36 to 45 (40) cells known as stichocytes. The vulva is located 66 to 105 (83) μm behind the end of the esophagus and the anus is near the end of the worm, which is rounded. At 6.8 to 9.2 (7.7) mm, males are only about half as long as females. Their maximum width is 34 to 42 (37) μm. The length of the esophagus is 2.3 to 3.0 (2.6) mm, of which the muscular pharynx makes up 260 to 315 (273) μm, and is lined by 35 to 42 (37) stichocytes. The back region of the worm is 4.5 to 6.2 (5.1) mm long. The back, or rectal, opening of the digestive tube is located near the end of the worm, and the length of the cloaca is 530 to 576 (550) μm.
High endothelial venules (HEV) are specialized post-capillary venous swellings characterized by plump endothelial cells as opposed to the usual thinner endothelial cells found in regular venules. HEVs enable lymphocytes circulating in the blood to directly enter a lymph node (by crossing through the HEV). Table 14-1 In humans, HEVs are found in all secondary lymphoid organs (with the exception of spleen, where blood exits through open arterioles and enters the red pulp), including hundreds of lymph nodes dispersed in the body, tonsils and adenoids in the pharynx, Peyer's patches (PIs) in the small intestine, appendix, and small aggregates of lymphoid tissue in the stomach and large intestine. In contrast to the endothelial cells from other vessels, the high endothelial cells of HEVs have a distinctive appearance, consisting of a cuboidal morphology and with various receptors to interact with leukocytes (express specialized ligands for lymphocytes and are able to support high levels of lymphocyte extravasation).
The digestive organs include an anterior, terminal mouth, a small subspherical pharynx, a long thin oesophagus without lateral diverticula and a posterior intestine that bifurcates at level of genital atrium in two lateral branches apparently fused just anterior to the haptor; the left branch extends into haptor for a short distance. Each adult contains male and female reproductive organs. The reproductive organs include an anterior genital atrium, comprising the anterior atrium proper and two posterior "pockets". The atrium proper is shaped as inverted heart, armed with numerous conical spines of similar sizes; the spines are more dense in the centre than in lateral parts, arranged as one main anterior group and two postero-lateral smaller groups called “pockets”, a vagina with a middorsal pore visible in most specimens, posterior to genital atrium, a single complex ovary and 13–29 testes, subspherical to oval, post- ovarian, occurring in 2 rows generally intercaecal, limited to posterior half of body proper.
Clostridium difficile from stool sample Photo Credit: CDC Public Health Image Library The human gastrointestinal tract (GI tract) consists of the mouth, pharynx, esophagus, stomach, small intestine, and large intestine, and is a 9-meter-long continuous tube; the largest body surface area exposed to the external environment. The intestine offers nutrients and protection to microbes, enabling them to thrive with an intestinal microbial community of 1014 beneficial and pathogenic bacteria, archaea, viruses, and eukaryotes. In return many of these microbes complete important functions for the host including breakdown of fiber and production of vitamins where gut microbes have at least a role in the production of vitamins such as A, B2, B3, B5, B12, C, D and K. In the human gut the immune system comes into contact with a large number of foreign microbes, both beneficial and pathogenic. The immune system is capable of protecting the host from these pathogenic microbes without starting unnecessary and harmful immune responses to stimuli.
DAHANCA 24 (2009-2011, 40 pts) The prognostic value of 18F -FAZA Positron Emissions Tomografi in patients with squanmous cell carcinoma after primary radiotherapy. ClinicalTrials.gov Identifier: NCT01017224 DAHANCA 25A (2009- 2011, 30 pts) Styrketræning kombineret med kosttilskud som intervention til genopbygning af muskelmasse efter strålebehandling for hoved-hals cancer. ClinicalTrials.gov Identifier: NCT01025518 DAHANCA 25B (2011- 2012, 40 pts) Progressive resistance training combined with nutritional supplements as intervention for re-building the muscle mass af terh primary radiotherapy of head and neck cancer. ClinicalTrials.gov Identifier: NCT01509430 DAHANCA 26 (2016 – 2020, 31 patients) Phase II Multicenter, unblinded, randomized study of paclitaxel and capecitabine versus paclitaxel, capecitabine and Cetuximab as first line treatment for recurrent and or metastatic head and neck squamous cell carcinoma.EudraCT 2014-001023-80 DAHANCA 28 (2013-2019, 50 patients ) Phase I/II study of accelereted hyperfractionate radiotherapy, concomitant cisplatin and nimorazol to patients with stage III-IV p16 negative squammous cell carcinoma of the larynx, pharynx and cavum oris. ClinicalTrials.
The digestive organs include an anterior, terminal mouth, a muscular pharynx, a short oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches on the outer side and very short diverticula on the inner side. Each adult contains male and female reproductive organs. The reproductive organs include an anterior spacious genital atrium opening at level of oesophagus, armed with numerous very small and slightly recurved spines, a medio-dorsal vagina opening midway between the anterior end of the body and the level of the ovary, a single incompletely S-shaped ovary consisting of an convoluted tube, a uterus opening through the genital pore, vitellarium giving off ducts which unite in a Y-shaped reservoir in the midline behind the ovary, an oviduct at the tip of the Y-shaped vitelline reservoir and a number of testes which are posterior to the ovary and present in a great group in the midpart of the body.
Dermatome distribution of the trigeminal nerve The ophthalmic, maxillary and mandibular branches leave the skull through three separate foramina: the superior orbital fissure, the foramen rotundum and the foramen ovale, respectively. The ophthalmic nerve (V1) carries sensory information from the scalp and forehead, the upper eyelid, the conjunctiva and cornea of the eye, the nose (including the tip of the nose, except alae nasi), the nasal mucosa, the frontal sinuses and parts of the meninges (the dura and blood vessels). The maxillary nerve (V2) carries sensory information from the lower eyelid and cheek, the nares and upper lip, the upper teeth and gums, the nasal mucosa, the palate and roof of the pharynx, the maxillary, ethmoid and sphenoid sinuses and parts of the meninges. The mandibular nerve (V3) carries sensory information from the lower lip, the lower teeth and gums, the chin and jaw (except the angle of the jaw, which is supplied by C2-C3), parts of the external ear and parts of the meninges.
As mentioned in the section above, the corresponding partial pressures of oxygen and carbon dioxide in the ambient (dry) air at sea level are 21 kPa (160 mmHg) and 0.04 kPa (0.3 mmHg) respectively. This marked difference between the composition of the alveolar air and that of the ambient air can be maintained because the functional residual capacity is contained in dead-end sacs connected to the outside air by fairly narrow and relatively long tubes (the airways: nose, pharynx, larynx, trachea, bronchi and their branches down to the bronchioles), through which the air has to be breathed both in and out (i.e. there is no unidirectional through-flow as there is in the bird lung). This typical mammalian anatomy combined with the fact that the lungs are not emptied and re-inflated with each breath (leaving a substantial volume of air, of about 2.5-3.0 liters, in the alveoli after exhalation), ensures that the composition of the alveolar air is only minimally disturbed when the 350 ml of fresh air is mixed into it with each inhalation.
The cartilaginous part of the Eustachian tube is about 24 mm in length and is formed of a triangular plate of elastic fibrocartilage, the apex of which is attached to the margin of the medial end of the bony part of the tube, while its base lies directly under the mucous membrane of the nasal part of the pharynx, where it forms an elevation, the torus tubarius or cushion, behind the pharyngeal opening of the auditory tube. The upper edge of the cartilage is curled upon itself, being bent laterally so as to present on transverse section the appearance of a hook; a groove or furrow is thus produced, which is open below and laterally, and this part of the canal is completed by fibrous membrane. The cartilage lies in a groove between the petrous part of the temporal bone and the great wing of the sphenoid; this groove ends opposite the middle of the medial pterygoid plate. The cartilaginous and bony portions of the tube are not in the same plane, the former inclining downward a little more than the latter.
Wadih El Safi being a classically trained tenor, is not a verified fact since none of his known works provide a proof of classical singing techniques. He has been known for singing in the belting school class and his phonation are a testimonial of this practice. This is further confirmed in what arguably is his most famous song "Lebnan Ya Ote'et Sama" ("لبنان يا قطعة سما" in Arabic, specifically Lebanese dialect) in which his voice shifts to the so-called Falsetto or more widely recognized today as the "Voce Piena Testa" or the full head register on the second transition "Secondo passagio" around "EB4" note above middle "C4" not overlapping "F4", meaning that his voice falls in the Baritone categorization rather than a tenor precisely a lyric baritone which is often linked to these transition areas. El Safi has no record for singing the "B4" and "C5" tenors' famous "High C" which are the characteristic signature of a tenor's laryngeal mechanism (constriction of the pharynx ) even though many of his age did.
Craniofacial and other features of LFS include: maxillary hypoplasia (underdevelopment of the upper jaw bone), a small mandible (lower jaw bone) and receding chin, a high-arched palate (the roof of the mouth), with crowding and misalignment of the upper teeth; macrocephaly (enlarged skull) with a prominent forehead, hypernasal speech (voice), a long nose with a high, narrow nasal bridge; a deep, short philtrum (the indentation in the upper lip, beneath the nose), low-set ears with some apparent retroversion, hypotonia (decreased muscle tone), pectus excavatum (a malformity of the chest), slightly enlarged to normal testicular size in males, and seizures. Hypernasal speech, or "hypernasality", is primarily the result of velopharyngeal insufficiency, a sometimes congenital aberration in which the velopharyngeal sphincter allows too much air into the nasal cavity during speech. In LFS, hypernasality may also be caused by failure of the soft palate and uvula to reach the back wall of the pharynx (the interior cavity of the throat where swallowing generally occurs) during speech, a condition that can be associated with a submucosal cleft palate.
Dangerous foods The foods that produce the most complicated choking are those whose shape adapts to the shape of the pharynx or trachea: hot dogs and sausages, bananas, food in blocks, etc. It is easier to choke on foods that dry the mouth (overcooked meat, sponge cake, cold pizza, etc.), which require the help of drinking liquid, or to be accompanied of purees or sauces. It is also easier to choke on foods that are tough (meat of octopus or cuttlefish, major size animals, some reptiles, etc.), they may need to be eaten together with something that helps the teeth to grind them (as loaf bread), or any concrete way to be prepared or cooked. Groups of risk Some population groups have a higher choking risk, as: the elderly, the children, the disabled (physically or mentally), people under the effects of alcohol or drugs, people who have taken medications that seriously reduce the ability to salivate or react, patients with difficulties to swallow (dysphagia), suicidal people, epileptics, people on the autism spectrum, individuals with disorders such as pica that lead them to consume inedible objects, etc.
In a 2014 conference abstract, the American palaeontologist Danny Anduza and Fowler pointed out that grizzly bears do not gaff fish out of the water as was suggested for Baryonyx, and also ruled out that the dinosaur would not have darted its head like herons, since the necks of spinosaurids were not strongly S-curved, and their eyes were not well- positioned for binocular vision. Instead, they suggested the jaws would have made sideways sweeps to catch fish, like the gharial, with the hand claws probably used to stamp down and impale large fish, whereafter they manipulated them with their jaws, in a manner similar to grizzly bears and fishing cats. They did not find the teeth of spinosaurids suitable for dismembering prey, due to their lack of serrations, and suggested they would have swallowed prey whole (while noting they could also have used their claws for dismemberment). A 2016 study by the Belgian palaeontologist Christophe Hendrickx and colleagues found that adult spinosaurs could displace their mandibular rami (halves of the lower jaw) sideways when the jaw was depressed, which allowed the pharynx (opening that connects the mouth to the oesophagus) to be widened.
Therefore, a greater volume of air must be inhaled at altitude than at sea level in order to breathe in the same amount of oxygen in a given period. During inhalation, air is warmed and saturated with water vapor as it passes through the nose and pharynx before it enters the alveoli. The saturated vapor pressure of water is dependent only on temperature; at a body core temperature of 37 °C it is 6.3 kPa (47.0 mmHg), regardless of any other influences, including altitude. Consequently, at sea level, the tracheal air (immediately before the inhaled air enters the alveoli) consists of: water vapor ( = 6.3 kPa), nitrogen ( = 74.0 kPa), oxygen ( = 19.7 kPa) and trace amounts of carbon dioxide and other gases, a total of 100 kPa. In dry air, the at sea level is 21.0 kPa, compared to a of 19.7 kPa in the tracheal air (21% of [100 – 6.3] = 19.7 kPa). At the summit of Mount Everest tracheal air has a total pressure of 33.7 kPa, of which 6.3 kPa is water vapor, reducing the in the tracheal air to 5.8 kPa (21% of [33.7 – 6.3] = 5.8 kPa), beyond what is accounted for by a reduction of atmospheric pressure alone (7.1 kPa). The pressure gradient forcing air into the lungs during inhalation is also reduced by altitude.

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