<prompt> Which of the following doesnt divide liver into 2 halves?Rt.Hepatic veinPoal veinHepatic aeryCommon bile duct  <response>: Poal vein, Hepatic aery and Common bile duct are involved in the division of the liver. From a surgical point of view, the liver is divided into right and left lobes of almost equal size by a major fissure Cantlies line running from the gallbladder fossa in front to the IVC fossa behind. This division is based on the right and left branches of the hepatic aery and the poal vein, with tributaries of bile hepatic ducts following.Each lobe is divided into 2 sectors. The right hepatic vein RHV divides the right lobe into anterior and posterior sectors; the left hepatic vein LHV divides the left lobe into medial quadrate and lateral sectors. The sectors are fuher divided into segments; each segment has its own blood supply and biliary drainage. 