The Common Hepatic Duct is a tube that drains bile from the liver into the small intestine. It is also known as the Hepatic Duct or the Hepatic Ductus. Some other synonyms for the Common Hepatic Duct include the Bile Duct, which refers to any duct that carries bile, and the Hepatobiliary Duct, which includes both the hepatic and biliary ducts. The Oddi Sphincter controls the flow of bile from the hepatobiliary system into the duodenum. Another synonym is the Choledochus, which is the main duct that carries bile from the liver to the small intestine, formed by the union of the common hepatic and cystic ducts.