Pharyngeal Pouch: From 2 Different Sources
See oesophageal diverticulum.
(branchial pouch, visceral pouch) any of the paired segmented pouches in the side of the throat of the early embryo. They give rise to the tympanic cavity, the parathyroid glands, the thymus, and probably the thyroid gland.
A hollow organ surrounding the inverted cirrus.... cirrus pouch
A rare chronic in?ammatory disease in the ileal pouch, which remains after a patient has had intestinal resection because of INFLAMMATORY BOWEL DISEASE (IBD). Metronidazole and oral PROBIOTICS are e?ective treatments.... pouchitis
An alternative term for a pharyngeal pouch.... pharyngeal diverticulum
see pharyngeal pouch.... branchial pouch
a saclike dilatation of the gall-bladder wall near its outlet; it is a common site for finding *gallstones. [R. Hartmann (1831–93), German anatomist]... hartmann’s pouch
(perineal pouch) a reservoir made from loops of ileum to replace a surgically removed rectum, avoiding the need for a permanent *ileostomy. This is commonly constructed in patients who have had their colon surgically removed for various disorders (e.g. ulcerative colitis or familial adenomatous polyposis).... ileal pouch
(branchial arch, visceral arch) any of the paired segmented ridges of tissue in each side of the throat of the early embryo that correspond to the gill arches of fish. Each arch contains a cartilage, a cranial nerve, and a blood vessel. Between each arch there is a *pharyngeal pouch.... pharyngeal arch
(branchial cleft, visceral cleft) any of the paired segmented clefts in each side of the throat of the early embryo that correspond to the gills of fish. Soon after they have formed they close to form the *pharyngeal pouches, except for the first cleft, which persists as the external auditory meatus.... pharyngeal cleft
see gag reflex.... pharyngeal reflex
n. 1. (in anatomy) a small sac-like structure, especially occurring as an outgrowth of a larger structure. The pouch of Douglas is a pouch of peritoneum occupying the space between the rectum and uterus. 2. (in surgery) a sac created from a loop of intestine and used to replace a section of rectum that has been surgically removed, for example in the treatment of ulcerative colitis (see ileal pouch), or to replace the bladder after *cystectomy.... pouch
see craniopharyngioma.... rathke’s pouch
see cystectomy.... studer pouch
see pharyngeal pouch.... visceral pouch