<prompt> All are true about blood supply of cerebral hemispheres exceptMCA is main supply of superolateral surfaceACA is main supply of inferior surfacePCA is main supply of inferior surfaceAll three aeries supply each surface  <response>: Most of the Inferior surface is supplied by the posterior cerebral aery.anterior cerebral aery supplies most of the medial surface of brain, medial pa of orbital surface of frontal lobe and a narrow strip of cerebral coex adjoining superomedial border.Ref: Vishram Singh textbook of clinical neuroanatomy second edition pg 178 