Most common nerve…

Longest intracranial courseTrochlear nerve
Longest course overall and most widely distributedVagus
Smallest (thinnest) cranial nerveTrochlear nerve
Largest (thickest) cranial nerveTrigeminal nerve
The only cranial nerve arising from dorsal aspectTrochlear nerve
Only cranial nerve decussating completely before emergingTrochlear nerve
Cranial nerve most commonly involved in basal skull fractureFacial  nerve
Cranial nerve most commonly involved in raised intracranial tensionAbducent nerve
Commonest cranial nerve affected in spinal anesthesiaAbducent nerve
Cranial nerve most commonly involved in intracranial aneurysmOculomotor nerve
Cranial nerves carrying parasympathetic fibers3,7,9,10

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