Inferior sphincter of bile duct
Sphincter inferior ductus biliaris
- Latin synonym: Musculus sphincter inferior; Sphincter inferior ductus choledochi
- Related terms: Inferior sphincter
Definition
The sphincter of bile duct ( (sphincter of choledocus) is one of the complex of four smooth muscle sphincters composing the hepatopancreatic ampulla (ampulla of Vater).
The sphincter of bile duct may be subdivided into two smooth muscles:
The sphincter of bile duct regulates the flow of the bile through the ampulla of Vater
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