胆汁问题（Bile problem）.docVIP

胆汁问题（Bile problem） Bile is secreted by liver cells into the bile canaliculi of hepatic lobules, and then into the hepatic duct, the left and the hepatic ducts, the hepatic duct, the gallbladder and the common bile duct, and the duodenum. After the operation, if there is a bile drainage tube, no matter where the head is placed, the outside should be put out of the bile. If it is T shaped tube, usually placed in the left and right hepatic duct, the liver endocrine bile drainage from the T tube. Bile is produced by about 75% hepatocytes, and 25% by bile duct cells. The daily secretion of adults is about 800 to 1000ml. Bile is a digestive juice that has emulsified fat, but contains no digestive enzymes. Bile plays an important role in digestion and absorption of fat. The bile salts, cholesterol and lecithin can reduce the surface tension of the fat, the fat emulsion into droplets for fat digestion; bile salt can also be combined with glycerol and fatty acid ester, forming a water soluble complex, promote the absorption of fat digestion products. And it can promote the absorption of fat soluble vitamins. Bile is stored in the gallbladder during digestion. During digestion, the bile is removed directly from the liver and from the gallbladder to the duodenum. What is the enterohepatic circulation of bile acid? Bile acids are essential substances for lipid food digestion and are the ultimate product of cholesterol metabolism in the body. The primary bile acids with bile into the intestines, promote digestion and absorption of lipids in the intestinal tract (lower intestine at the same time, by and large) in bacteria and into secondary bile acids, bile acids in the intestine of about 95% were intestinal absorption (including active reabsorption and passive reabsorption), bile acid absorption by the portal vein back to the liver, liver cells after treated with conjugated bile acid, a bile duct into the intestinal by new synthesis, this process is called the enterohepatic circ