Tags: Anatomical Structure.
The common bile duct (ductus choledochus) is a tube-like anatomic structure in the human gastrointestinal tract. It is formed by the union of the common hepatic duct and the cystic duct (from the gall bladder). It is later joined by the pancreatic duct to form the ampulla of Vater. There the two ducts are surrounded by the muscular sphincter of Oddi.When the sphincter of Oddi is closed newly synthesized bile from the liver is forced into storage in the gall bladder.
