<prompt> Which Couinaud segment of liver has independent supply?IIIIIIIV  <response>: Ans. is a i.e., I Caudate lobe Couinaud Segment I anatomical part of right lobe belongs physiologically to both right and left lobes because it receives blood from right and left hepatic arteries; right and left branches of portal vein; and drains bile into both right and left hepatic duct. Thus it is considered as physiological independent lobe of the liver. 