<prompt> Which of the following cranial nerve carries parasympathetic fibers?CN 1CN 2CN 3CN 4  <response>: Ans. C CN 3Ref: Netters Atlas of Neurosciences, pg. 265The cranial nerves carrying parasympathetic fibers are 3, 7, 9, 10.Extra Mile CN having longest intraosseous courseFacial nerve CN having longest extracranial courselVagus nerve Thinnest and most slender cranial nerve Only one to originate from the dorsal surface Longest intracranial courseTrochlear Thickest and largest cranial nerve Largest branch of trigeminal is mandibular nerve.TrigeminalFalse localising sign in raised ICP AbducensLongest intra-osseus course FacialCranial nerve with both motor and sensory cssomponents5,1, 9, 10 