ampulla (redirected from vas deferens ampulla)

ampulla /am·pul·la/ (am-pul´ah) pl. ampul´lae   [L.] a flask-like dilatation of a tubular structure, especially of the expanded ends of the semicircular canals of the ear.ampul´lar

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ampulla chy´li  cisterna chyli.

ampulla duc´tus deferen´tis  the enlarged and tortuous distal end of the ductus deferens.

hepatopancreatic ampulla , ampulla hepatopancrea´tica the dilatation formed by junction of the common bile and the pancreatic ducts proximal to their opening into the lumen of the duodenum.

Ampulla hepatopancreatica (hepatopancreatic ampulla), receiving the common bile and pancreatic ducts and entering the duodenum at the major duodenal papilla.

ampul´lae lacti´ferae  lactiferous sinuses.

ampul´lae membrana´ceae  membranous ampullae: the dilatations at one end of each of the three semicircular ducts, anterior, lateral, and posterior.

ampul´lae os´seae  the dilatations at one of the ends of the semicircular canals, anterior, lateral, and posterior.

phrenic ampulla  a dilatation sometimes seen at the lower end of the esophagus.

rectal ampulla , ampulla rec´ti the dilated portion of the rectum just proximal to the anal canal.

ampulla of Thoma  one of the small terminal expansions of an interlobar artery in the pulp of the spleen.

ampulla of uterine tube  the thin-walled, almost muscle-free, midregion of the uterine tube; its mucosa is greatly plicated.

ampulla of vas deferens  a. ductus deferentis.

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am·pul·la (m-pl, -pl)

n. pl. am·pul·lae (-pl, -pl)

A dilated portion of a canal or duct, as in the semicircular canal of the ear.

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am·pullar adj.

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ampulla

pl. ampullae [L.] a flasklike dilatation of a tubular structure, especially of the expanded ends of the semicircular canals of the ear. See also ampullar.

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ampulla chyli

cisterna chyli.

ampulla coli

the enormously dilated part of the right dorsal colon of the horse.

ampulla ductus deferentis

the enlarged glandular urethral end of the ductus deferens.

Henle's ampulla

ampulla ductus deferentis.

hepatopancreatic ampulla

ampulla of Vater; in humans, a flasklike cavity in the major duodenal papilla into which the common bile duct and pancreatic duct open.

Lieberkühn's ampulla

the blind termination of the lacteals in the villi of the intestines.

ampullae membranaceae

the dilatations at one end of each of the three semicircular ducts.

ampullae osseae

the dilatations at one of the ends of the semicircular canals.

phrenic ampulla

the dilatation at the diaphragmatic end of the esophagus in some species.

rectal ampulla

the dilated portion of the rectum just proximal to the anal canal, prominent in the horse.

ampulla of Thoma

one of the small terminal expansions of an interlobar artery in the pulp of the spleen.

uterine tube ampulla

the longest and widest portion of the uterine tube, between the infundibulum and the isthmus of the tube.

vas deferens ampulla

dilatation of the terminal part of the vas deferens caused by glandular thickening of the wall.

ampulla of Vater

hepatopancreatic ampulla.

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ampulla A saclike enlargement of a duct or tube 1. Ampulla of Vater, formally, hepatopancreatic ampulla 2. Ampule