<prompt> Cholecystocaval line:-Separate right anterior and right posterior sectorsSeparate gall bladder from poal veinSeparate right and left hepatic lobesSeparate left medial and left lateral sectors  <response>: Cholecystovenacaval line: - Is an imaginary line which passes through groove for IVC to the gallbladder fossa and separates right left hepatic lobe functionally. 