<prompt> Most common site of berrys aneurism is -Trifurcation of internal carotid arteryJunction of anterior cerebral and anterior communicating arteryBifurcation of basilar arteryMiddle cerebral artery  <response>: Ans. is b i.e., Junction of anterior cerebral and anterior communicating artery Most common sites of Berrys Aneurysma. Junction of anterior cerebral and anterior communicating arteryb. Bifurcation of MCAc. Trifurcation of CIAd. Bifurcation of basilar artery 