This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain , Subject name: Anatomy
Most commonly lesioned nerve in intracranial aneurysms is 
Select and explain. 
A. Optic, B. Oculomotor, C. Trochlear, D. Abducent
B: Oculomotor
Answer: B: Oculomotor 
Explanation: Intracranial aneurysm may involve oculomotor, abducent and optic nerve in descending order Trochlear nerve is involvement is higher in head trauma. Ref: Gray's 39e/p-227