| mylopharyngeal part of superior pharyngeal constrictor | See: superior constrictor muscle of pharynx. Synonym: pars mylopharyngeus musculi constrictoris pharyngis superioris. (05 Mar 2000) |
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| cricopharyngeal part of inferior pharyngeal constrictor | See: inferior constrictor muscle of pharynx. Synonym: pars cricopharyngea musculi constrictoris pharyngis inferioris. (05 Mar 2000) |
| sphincter of the pharyngeal isthmus | A constant band of the superior pharyngeal constrictor muscle which sweeps posteriorly from the anterolateral part of the superior surface of the palatine aponeurosis. It creates a visible ridge when the superior constrictor is contracted, meeting the elevated soft palate to seal off the pharyngeal isthmus during swallowing. Synonym: pharyngeal ridge, sphincter of the pharyngeal isthmus, velopharyngeal sphincter. (05 Mar 2000) |
| syndrome, third and fourth pharyngeal pouch | See syndrome, digeorge. (12 Dec 1998) |
| third and fourth pharyngeal pouch syndrome | <syndrome> Also called the digeorge syndrome (dgs), this disorder is characterised by (1) low blood calcium levels (hypocalcaemia) due to underdevelopment (hypoplasia) of the parathyroid glands which control calcium; (2) underdevelopment (hypoplasia) of the thymus, an organ behind the breastbone in which lymphocytes mature and multiply; and (3) defects of the heart involving the outflow tracts more than from the heart. most cases of dgs are due to a microdeletion in chromosome band 22q11.2. A small number of cases have defects in other chromosomes, notably 10p13. Named after the american paediatric endocrinologist angelo digeorge. Another name for dgs is hypoplasia of the thymus and parathyroids. (12 Dec 1998) |
| thyropharyngeal part of inferior pharyngeal constrictor muscle | thyropharyngeal part of inferior pharyngeal constrictor muscle |
| lateral pharyngeal space | That part of the peripharyngeum spatium located at the sides of the pharynx. Synonym: spatium lateropharyngeum. (05 Mar 2000) |
| apatite calculus | A calculus in which the crystalloid component consists of calcium fluorophosphate. (05 Mar 2000) |
| arthritic calculus | gouty tophus |
| biliary calculus | <gastroenterology, surgery> A solid formation in the gallbladder composed of cholesterol and bile salts. (27 Sep 1997) |
| blood calculus | An angiolith or concretion of coagulated blood. Synonym: hemic calculus. (05 Mar 2000) |
| branched calculus | A calculus occurring in the renal pelvis, with branches extending into the infundibula and calices. Synonym: branched calculus, coral calculus, dendritic calculus. (05 Mar 2000) |
| bronchial calculus | A hard concretion in a bronchus or bronchial tube. Synonym: bronchial calculus. Origin: broncho-+ G. Lithos, stone (05 Mar 2000) |
| calculus | A calcium salt concretion which forms on your teeth. Calculus deposits form on the teeth in areas which you do not floss or brush. If these concretions are left to build up on the tooth enamel, they will irritate the gum tissue, push it away from the tooth and promote progressive bone loss. Eventually the teeth can loosen and fall out. These deposits can be removed by a dentist or a dental hygienist on an annual to biannual basis. (renal) A solid concretion or stone which forms within the urinary tract (kidney). (27 Sep 1997) |
| calculus I | An abnormal concretion occurring within the animal body and usually composed of mineral salts. (18 Nov 1997) |