This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
Superior orbital fissure syndrome - following nerves are affected ? 
Select and explain. 
A. C.N. 1, 2, 4, 6, B. C.N. 2, 3, 4, 6, C. C.N. 3, 4, 5, 6, D. C.N. 1, 2, 3, 4, 5
C: C.N. 3, 4, 5, 6
Answer: C: C.N. 3, 4, 5, 6 
Explanation: Ans. is 'c' i.e., C.N. 3, 4, 5, 6 The superior orbital fissure is a cleft between the lesser and greater wing of sphenoid.The structures passed through superior orbital fissure are 3rd, 4th, 6th nerve, ophthalmic division of 5th nerve, superior & inferior division of ophthalmic vein and sympathetic fibres.