noun
definition
The part of the alimentary canal and respiratory tract that extends from the back of the mouth and nasal cavity to the larynx and esophagus.
Examples of pharynx in a Sentence
The mouth opens into a muscular pharynx lined by a thick cuticle.
The mouth is minute and the pharynx is always suctorial, never gizzard-like.
A buccal cavity, a pharynx, an oesophagus and an intestine are always distinguishable.
There is no armed protrusible pharynx, such as exists in some other Chaetopods.
When they are arranged in uniserial or biserial rows the genital ducts open into or near the branchial grooves in the region of the pharynx and in a corresponding position in the post-branchial region.
Muscular fibres connected with the suctorial pharynx are in Limulus inserted into the entosternite, and the activity of the two organs may be correlated.
Behind this point there is a muscular pharynx or gizzard, which communicates with the wide intestinal tract.
At the anterior end the head is differentiated; it bears the sense-organs, and contains the muscular pharynx within which is the radular apparatus.
The pharynx projects freely into the atrium; it is surrounded at the sides and below by the continuous atrial cavity, but dorsally it is held in position in two ways.
Pharynx and oesophagus are concealed in the head.
The digestive system consists of a simple or bifurcated sac, opening through the mouth by means of a "pharynx bulbosus," adapted to act primarily as a sucker, and secondarily, when drawing blood, as an aspirator.
The pharynx or stomodaeum is still small, the foot not yet prominent.
The mouth is anterior and slightly ventral; it leads into a protrusible pharynx armed with recurved teeth that can be everted.
The esophagus and pharynx were then separated from the loose tissue of the retropharyngeal plane and the hyoid bone and neurovascular bundles removed.
In both sexes, smoking is linked to cancers of the lung, bladder, pancreas, kidney, larynx, pharynx, and esophagus.
Alimentary canal rarely coiled, occasionally with glands which are simple caeca and sometimes serve as air reservoirs; jaws often present and an eversible pharynx.
The body is ringed, and often has circles of spines, which are continued into the slightly protrusible pharynx.
The excretory system opens to the exterior by a pair of dorsal pores at the level of the pharynx.
First, its dorsal wall (which is grooved to form the hyperpharyngeal groove) is closely adherent to the sheath of the notochord; and secondly, the pharynx is attached through the intermediation of the primary bars.
These are suspended to the muscular bodywall by a double membrane, called the ligamentum denticulatum, which forms at once the roof of the atrial chamber and the floor of a persistent portion of the original body-cavity or coelom (the dorsal coelomic canal on each side of the pharynx).
The perforated pharynx terminates some distance in front of the atriopore.
In the same region of the body, namely, close behind the pharynx, a large diverticulum is given off from the ventral side of the gut.
Thus carbolic acid or carbolized ammonia are sniffed into the nose to destroy the microbes there, or the nose is washed out by an antiseptic solution as a nasal douche; bismuth or morphine are insufflated, or zinc ointment is applied, to cover the mucous membrane, and protect it from further irritation; and various antiseptic gargles, paints and powders applied to the pharynx in order to prevent the microbic inflammation from extending to the pharynx and down the trachea and bronchi, for many a severe bronchitis begins first by sneezing and nasal irritation.
The former leads to a protrusible pharynx (B), from which the oesophagus opens into a wide intestinal chamber with branching lateral diverticula.
The roof of the mouth is formed by the palate, terminating behind by a muscular, contractile arch, having in man and a few other species a median projection called the uvula, beneath which the mouth communicates with the pharynx.
This embraces the base of the epiglottis, and, except while swallowing food, shuts off all communication between the cavity of the mouth and the pharynx, respiration being, under ordinary circumstances, exclusively through the nostrils.
Here may be mentioned the guttural pouches, large airsacs from the Eustachian tubes, and lying behind the upper part of the pharynx, the function of which is also not understood.
The muscular pharynx, extending back into the space between the first and second pairs of legs, is followed by a short tubular oesophagus.
This manoevre seals the esophagus and prevents material from the stomach and esophagus reaching the pharynx.
Then, how can Martels ' " own " characteristic voice be reproduced by its apparatus, when he has no pharynx?
The buccal cavity can be isolated by the short soft palate which produces an extremely tight occlusion across the nasal pharynx.
Its only resemblance to other chordates is its large pharynx perforated with gill slits and used for feeding.
The " introvert " in these Gastropods is not the pharynx The ctenidium is monopectinate and attached to the mantle along as in the Chaetopod worms, but a prae-oral structure, its apical limit being formed by the true lips and jaws, whilst the apical limit of the Chaetopod's introvert is formed by the jaws placed at the junction of pharynx and oesophagus, so that the Chaetopod's introvert is part of the stomodaeum or fore-gut, whilst that of the Gastropod is external to the alimentary canal altogether, being in front of the mouth, not behind it, as is the Chaetopod's.
The muscles acting on the bulb-like pharynx now set up a pumping action (see Huxley, 26); and the juices - but no solid matter, excepting such as is reduced to powder - are sucked into the scorpion's alimentary canal.
The simple nerve-ganglion or brain (g) lies on the anterodorsal side of the pharynx, and by its position determines the orientation of the animal, the cloacal opening lying on the same side, and the course of the gut being" neural."The sense organs are a pair of pigmented eyes (oc), and two pairs of antennae, one anterior proximal and near the wreath, the other distal and usually more or less lateral.
Together cigarettes and chewing tobacco are responsible for more cancers of the larynx, oral cavity and pharynx, esophagus, and bladder than any other agents.
Sore throat is a painful inflammation of the mucous membranes lining the pharynx.
Larynx-Also known as the voice box, the larynx is the part of the airway that lies between the pharynx and the trachea.
The examiner will also assess the sensation capabilities of the pharynx, by stimulating the area with a wooden tongue depressor, causing a gag reflex.
Nasopharynx-One of the three regions of the pharynx, the nasopharynx is the region behind the nasal cavity.
Oropharynx-One of the three regions of the pharynx, the oropharynx is the region behind the mouth.
Streptococcal sore throat, or strep throat, as it is more commonly called, is a bacterial infection of the mucous membranes lining the throat or pharynx.
Adenoids-Common name for the pharyngeal tonsils, which are lymph masses in the wall of the air passageway (pharynx) just behind the nose.
Pharyngeal diphtheria gets its name from the pharynx, which is the part of the upper throat that connects the mouth and nasal passages with the voice box.
H, The acrembolic (= pleurecbolic) pharynx of a Chaetopod fully introverted.
The mouth opens through a narrow pharynx (p) into a chamber which is (as in Crustacea) at once crop and gizzard, the mastax (ma), whose thickenings are imbedded in the posteroventral wall.
Gastrulation takes place by epiboly, and the stomodaeum (oral invagination - mastax pharynx) takes place in two stages of the region of the closed blastopore.
The branched intestine (G) is drawn on one side of the animal only; it opens to the exterior by means of a pharynx (not shown).
The study of Rhabdocoels (7) has led to the important discovery that the rudiment of the gonads and that of the pharynx are the first organs to appear, and that the alimentary sac arises independently of them.
Along this channel the nectar is drawn into the pharynx and passes, mixed with saliva, into the crop or "honey-bag"; the action of the saliva changes the saccharose into dextrose and levulose, and the nectar becomes honey, which the bee regurgitates for storage in the cells or for the feeding of the grubs.