Term Name: sphincter of hepatopancreatic ampulla
Synonyms: Oddi's sphincter, sphincter of Oddi
Definition: 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. Relaxed by the hormone Cholecystokinin (CCK) via vasoactive intestinal polypeptide (VIP).[WP].
Ontology: Uberon Ontology [UBERON:0004915]

Relationships
is part of: hepatopancreatic ampulla
is a type of: endoderm-derived structure gastrointestinal sphincter sphincter muscle