sphincter of common bile duct


sphinc·ter of com·mon bile duct

(sfingk'tĕr kom'ŏn bīl dŭkt) Smooth muscle sphincter of the common bile duct immediately proximal to the hepatopancreatic ampulla; it is this sphincter that controls the flow of bile into the duodenum.
Synonym(s): musculus sphincter ductus choledochi [TA] .