| hepatopancreatic ampulla | The dilation within the major duodenal papilla that normally receives both the common bile duct and the main pancreatic duct. Synonym: ampulla hepatopancreatica, duodenal ampulla, Vater's ampulla. (05 Mar 2000) |
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| sphincter of hepatopancreatic ampulla | The smooth muscle sphincter of the hepatopancreatic ampulla within the duodenal papilla. Synonym: musculus sphincter ampullae hepatopancreaticae, Glisson's sphincter, hepatopancreatic sphincter, Oddi's sphincter. (05 Mar 2000) |
| diverticula of ampulla of ductus deferens | The irregular sacculations of the ampullary part of the ductus deferens near its termination in the ejaculatory duct. Synonym: diverticula ampullae ductus deferentis. (05 Mar 2000) |
| duodenal ampulla | The dilated portion of the superior part of the duodenum. Synonym: ampulla duodeni. See: duodenal cap. Synonym: hepatopancreatic ampulla. (05 Mar 2000) |
| osseous ampulla | A circumscribed dilation of one extremity of each of the three bony saemicircular canals, anterior, posterior, and lateral; each contains an ampulla of the saemicircular ducts. Synonym: ampulla ossea, osseous ampulla. (05 Mar 2000) |
| lactiferous ampulla | A circumscribed spindle-shaped dilation of the lactiferous duct just before it enters the nipple. In nursing mothers this dilatation stores a droplet of milk which is expressed by compression as the infant begins to suckle; this is thought to encourage continual suckling while the let-down reflex ensues. Synonym: sinus lactiferi, ampulla lactifera, ampulla of milk duct, lactiferous ampulla. (05 Mar 2000) |