Opening of hepatopancreatic duct into the duodenum is guarded by

Question

Opening of hepatopancreatic duct into the duodenum is guarded by (A) Pyloric sphincter (B) Sphincter of Boyden (C) Sphincter of Oddi (D) Cardiac sphincter

Tardigrade Admin · Accepted Answer

The sphincter of ampulla or sphincter of Oddi is a muscular valve that controls the flow of digestive juices (bile and pancreatic juice) through the ampulla of Vater into the second part of the duodenum. It is named after Ruggero Oddi. The sphincter of Oddi is relaxed by the hormone cholecystokinin (CCK).

Q. Opening of hepatopancreatic duct into the duodenum is guarded by

Pyloric sphincter

Sphincter of Boyden

Sphincter of Oddi

Cardiac sphincter