The ligamentum teres (18) has been pulled toward the left to reveal the structures which enter the liver through the porta hepatis. The hepatic artery (23) and the portal vein (8) have been dissected as they pass into the liver through the porta hepatis. The extensive hepatic plexus (7, 17) which accompanies the hepatic and accessory hepatic arteries has been preserved. The common bile duct (12) can be traced upward along the right margin of the dissected lesser omentum into the liver. The right and left hepatic ducts (6), and the cystic duct (9) have been exposed. Additional dissections of the biliary tract are shown in views 146-4, 146-6 and 146-7.