Cystic Duct Anatomy

The cystic duct is mucous membrane lined by a series of crescentic folds on the inside 5 10 in number. Structure in human digestive system.

Stock Image Illustration Of The Normal Anatomy Of The

In addition the cystic duct may be involved in a wide variety of both primary and secondary disease processes.

Cystic duct anatomy. It contains spiral valves of heister which do not provide much resistance to the flow of bile. The cystic duct usually measures 24 cm in length and contains prominent concentric folds known as the spiral valves of heister. However unrecognized variant anatomy can be a source of confusion on imaging studies.

Gross anatomy the confluence of the cystic duct and the common hepatic duct forms the common bile duct cbd. It usually lies next to the cystic artery. In the average adult the cystic duct measures four centimeters in length.

Primary entities involving the cystic duct include calculous disease mirizzi syndrome cystic ductduodenal fistula biliary obstruction neoplasia and primary sclerosing cholangitis. It is of variable length. Anatomy the cystic duct varies from 2 to 3 cm in length and terminates in the gallbladder a saccular structure with a capacity of about 50 ml about 15 fluid ounces.

The cystic duct attaches the gallbladder to the extrahepatic bile duct. It then joins the common bile duct which meets pancreatic duct before it empties into the duodenum. The cystic duct may also be secondarily involved by adjacent malignant or inflammatory processes.

The valve of heister keeps the duct open so that bile can go through it both in and out of the gallbladder. Its point of insertion into the extrahepatic bile duct marks the division between the common hepatic duct and the common bile duct fig 1. The cystic duct connects the top of the gallbladders neck to the common hepatic duct.

The cystic duct connects the neck of the gallbladder to the common hepatic duct chd draining bile to and from the biliary tree. Throughout its length the cystic duct is lined by a spiral mucosal elevation called the valvula. The cystic duct is the short duct that joins the gallbladder to the common bile duct.

The gallbladder stores bile produced in the liver. Anatomical variations of the cystic duct are usually of no clinical significance occurring in 18 23 of cases4. They project into the lumen in a spiral manner creating a spiral fold termed spiral valve of heister.

In human digestive system.

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