肝胆汁由肝细胞和胆微管不断分泌,再由胆微管流入肝管,通过胆囊管流入胆囊贮存。胆囊有贮存和浓缩胆汁的功能。肝微管胆汁为金黄色透明液体,呈弱碱性,比重接近1.009。进入胆囊后,胆囊重吸收胆汁中水、NaCl和NaHCO_3,同时分泌大量粘性物质进入胆汁,使胆汁浓缩成粘稠状液体(胆囊胆汁)。由于胆 Liver bile by the liver cells and bile duct microtubules continue to secrete, and then by the microtubule into the hepatic duct, gallbladder through the cystic duct into the storage. The gallbladder has the function of storing and concentrating bile. Liver microtubules bile golden yellow transparent liquid, was weakly alkaline, the proportion of nearly 1.009. Into the gallbladder, the gallbladder reabsorption of bile water, NaCl and NaHCO_3, while secreting a large amount of viscous material into the bile, the bile concentrated into a viscous liquid (gallbladder bile). Because of gall