胆道系统疾病（英文版）-.pptVIP

Biliary system Anatomy and and physiologyof Biliary System1Methods of Investigation2Disorders of Gallbladder3Disorders of Bile Duct4Case discussion5 Anatomy and physiology of Biliary System1 Bile come from?How bile was transported?Pre-Test Secretion of Bile75%25%About 75% bile was secreted from hepatocyte and 25% was produced by biliary epithelial. Composition：water、bile acid、bile salt and bile pigmentFunction：help digestion and absorption of fatComposition and function of bile Intrahepatic Biliary Tract Capillary Bile duct Left hepatic Bile ductRight hepatic bile ductAnatomy of Biliary System Extrahepatic Biliary Tract Bifurcation Common hepatic ductCommon bile ductCystic ductGallbladderAnatomy of Biliary System The liver secrete bile, bile flow from liver to right and left hepatic ducts.These ducts drain into the common hepatic duct.The common hepatic duct then joins with the cystic duct to form the common bile duct.Transportation of Bile About 50 percent of the bile produced by liver is first stored and concentrated in gallbladder.When food is taken, the gallbladder contracts and release stored bile into the duodeum to help digest the food.Transportation of Bile Regulation of bile secretion Calot triangleThe triangle is bounded by the cystic duct, the common hepatic duct, and the inferior border of the liver. Important structures including: the cystic artery, the right hepatic artery, and the cystic duct lymph node. The importance of Biliary systemIn Greek mythology, when Achilles was a baby, it was foretold that he would die youngTo prevent his death, his mother Thetis took Achilles to the River Styx, which was supposed to offer powers of invulnerability, and dipped his body into the waterBut as Thetis held Achilles by the heel, his heel was not washed over by the water of the magical river Achilles’heel Achilles’heel right hepatic arteryretroduodenal artery 9:00 arteryleft hepatic arteryproper hepatic artery3:00 arterycommon hepatic arterygastroduodenal arte