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Ampulla of Vater
The ampulla of Vater (latin: papilla Vateri, papilla duodeni major), also known as the hepatopancreatic ampulla, is formed by the union of the pancreatic duct and the common bile duct. The ampulla is specifically located at the major duodenal papilla.
Various smooth muscle sphincters regulate the flow of bile and pancreatic juice through the ampulla: the sphincter of the pancreatic duct, the sphincter of the bile duct, and the hepatopancreatic sphincter (sphincter of Oddi).
The sphincter of Oddi controls the introduction of bile and pancreatic secretions into the duodenum, as well as preventing the entry of duodenal contents into the Ampulla.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Ampulla_of_Vater". A list of authors is available in Wikipedia.|