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The system is usually referred to as the biliary tract or system, [9] and can include the use of the term "hepatobiliary" when used to refer just to the liver and bile ducts. [1] The name biliary tract is used to refer to all of the ducts, structures and organs involved in the production, storage and secretion of bile. [10] The tract is as follows:
The biliary tree (see below) is the whole network of various sized ducts branching through the liver.. The path is as follows: bile canaliculi → canals of Hering → interlobular bile ducts → intrahepatic bile ducts → left and right hepatic ducts merge to form → common hepatic duct exits liver and joins → cystic duct (from gall bladder) forming → common bile duct → joins with ...
The bile duct [1] [4] (formerly known as the common bile duct [4]) is a part of the biliary tract. [4] It is formed by the union of the common hepatic duct and cystic duct. It ends by uniting with the pancreatic duct to form the hepatopancreatic ampulla. It possesses its sphincter to enable the regulation of bile flow.
A diagram of the biliary system. Note that the ampulla of Vater is behind the major duodenal papilla. ... Clinically Oriented Anatomy, 4th ed. (1999).
The common hepatic duct is the first part of the biliary tract. [2] It is formed by the union of the right hepatic duct (which drains bile from the right functional lobe of the liver) and the left hepatic duct (which drains bile from the left functional lobe of the liver). [3] The duct is about 3 cm long. [4]
Intrahepatic bile ducts compose the outflow system of exocrine bile product from the liver. They can be divided into: [2] Lobar ducts (right and left hepatic ducts) - stratified columnar epithelium. Interlobar ducts (between the main hepatic ducts and the interlobular ducts) - pseudostratified columnar epithelium.
It is surrounded by the sphincter of Oddi, a circular muscle, and receives a mixture of pancreatic enzymes and bile from the Ampulla of Vater, which drains both the pancreatic duct and biliary system. [2] The junction between the foregut and midgut occurs directly below the major duodenal papilla.
A bile canaliculus (pl.: bile canaliculi; also called bile capillaries) is a thin tube that collects bile secreted by hepatocytes.The bile canaliculi empty into a series of progressively larger bile ductules and ducts, which eventually become common hepatic duct.