<prompt> Not a true statement regarding 3rd cranial nerve:Palsy may lead to ptosisNucleus in lower mid brainUncontrolled BP is a common causeSupplies medial rectus  <response>: Nucleus of 3rd cranial nerve at the level of superior colliculus in the mid-brain. 3rd nerve supplies all the muscles of eye except lateral rectus LR6 superior obliqueSO4 3rd CN palsy: -Pupil is down out -Ptosis as LPS also paralysed -Common causes- uncontrolled BPHTN 