Ampulla of Vater

Ampulla of Vater: An enlargement of the ducts from the liver and pancreas at the point where they enter the small intestine. Bile from the liver and secretions from the pancreas come through the ampulla of Vater to mix with food in the duodenum and aid digestion.

Named for Abraham Vater (1684-1751), a German anatomist. Also called the papilla of Vater.