胆囊是浓缩和贮存胆汁的器官,肝脏每日可分泌600～1000毫升胆汁(胆汁的成分主要是水分,还含有胆盐、胆酸、胆固醇、胆色素、卵磷脂等物质),胆囊可将其浓缩4～10倍。当脂肪及蛋白质分解物经过十二指肠时,通过神经系统反射引起胆囊收缩,浓缩的胆汁经胆管排入肠内,通过胆汁、胰液的进一步消化,蛋白质、脂肪分别分解成氨基酸和脂肪酸,由血液运送 Gallbladder is an organ that concentrates and stores bile. The liver can secrete 600-1000 ml of bile daily (the main component of bile is water, and also contains bile salts, cholic acid, cholesterol, bile pigment, lecithin, etc.) Concentrated 4 to 10 times. When fat and protein breakdown through the duodenum, gallbladder contraction caused by the nervous system reflex, concentrated bile by the bile duct into the intestine, through the bile, further digestion of pancreatic juice, protein, fat were broken down into amino acids and fatty acids, from Blood delivery