<prompt> Basis of division of anatomical segments of liver are all, EXCEPT:Hepatic aeryHepatic veinPoal veinBile duct  <response>: The proper hepatic aery, poal vein, and common hepatic duct enterexit the liver at the poa hepatis as the poal triad. The central branch first divides into two larger branches, functionally subdividing the liver into left pas and right pas. The poal triad continue to ramify within the liver, forming a total of eight segments that are more or less functionally independent of one another. Hepatic segments grouped by pas and divisions: Left pa of the liver 1. Posterior pa, Caudate lobe Segment S1 2. Left lateral division 1. Left posterolateral segment S2 2. Left anterolateral segment S3 3. Left medial division Left medial segment S4; subdivided into subsegment 4a and 4b Right pa of the liver 1. Right medial division 1. Right anteromedial segment S5 2. Right posteromedial segment S8 2. Right lateral division 1. Right anterolateral segment S6 2. Right posterolateral segment S7 