common bile duct is part of what body system
Origin of common bile duct: Common bile duct is about 3 inches long and is formed by the union of cystic duct and common hepatic duct. Course of common bile duct: In the first part of its course, it lies in the right free margin of the lesser omentum in front of the epiploic foramen. At this location, it lies in front of the portal vein and to the right of the hepatic artery.