<prompt> All of the following statement are true about oculomotor nerve EXCEPT:Supplies extrinsic ocular musclesIts nucleus is located in lower midbrainIts nucleus is located in upper midbrainPalsy may lead to ptosis  <response>: Ans. b Its nucleus located in lower midbrainRef: A.K. Khurana 6th ed. 7-8 Location of CN III occulomotor nerve nucleus is upper midbrain Location of CN IV trochlear nerve nucleus is in the lower mid-brain.CN, their Respective Nucleus Location and their FunctionCranial NerveNucleus LocationFunctionOculomotor IIIUpper midbrainEyeball movements: extrinsic ocular musclesTrochlear IVLower midbrainEyeball movements: extrinsic ocular musclesAbducens VIPonsEyeball movements: extrinsic ocular musclesHypoglossal XIIMedullaTongue muscles and movements 