<prompt> Couinauds segments are used to divide which organ?LiverLungSpleenKidney  <response>: Ans. a Liver. Ref. Diagnostic ultrasound by Carol Rumac, 2nd ed., 89SEGMENTAL LIVER ANATOMYFunctional segmental liver anatomy by Couinaud Bismuth is based on distribution of 3 major hepatic veins divides liver into 8 segements: Middle hepatic vein:- -Divides liver into right and left lobe- -Also separated by main portal vein scissura, the cantile line passing through IVC long axis of gall bladder Left hepatic vein- -Divides left lobe into medial lateral sectors Right hepatic vein- -Divides right lobe into anterior posterior sectorsLiver segmentCorresponding lobeSegment ICaudate lobeSegment IILeft lateral superiorSegment IIILeft lateral inferiorSegment IVQuadrate lobe AIIMS 2007 Nov- Left medial superior- Left medial inferiorSegment VRight anterioinferiorSegment VIRight posteroinferiorSegment VIIRight posteriosuperiorSegment VIIIRight anteriosuperior 