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Cystic duct
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The cystic duct is part of the extrahepatic biliary tree, transporting bile to and from the gallbladder. It is formed medially off the neck of the gallbladder, travelling in a posteromedial direction and joining with the common hepatic duct to form the common bile duct. It is typically around 2-4cm long, often tortuous, and has spirally folded mucosa forming the valves of Heister that are thought to assist with maintaining the patency of the duct.
Bile produced by the liver will travel through the cystic duct to be stored and concentrated in the gallbladder. When stimulated by the hormone cholecystokinin during digestion, bile is then released by the gallbladder into the cystic duct to make its way down into the duodenum.
| Terminology |
English: Cystic duct Latin: Ductus cysticus |
| Location | Connects the gallbladder to the common hepatic duct |
| Function | Carries bile to and from the gallbladder |
Learn more about the gallbladder with this study unit:
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