This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroanatomy, Subject name: Anatomy
Which cranial nerve is not transmitted by superior orbital fissure? 
Select and explain. 
A. 2, B. 3, C. 4, D. 5
A: 2
Answer: A: 2 
Explanation: Ans. A 2Ref: Netter's Clinical Anatomy, 3rd ed. pg. 442Structures transmitted via the superior orbital fissure* Cranial nerve III, IV, VI (ophthalmic nerve) and VI* Inferior ophthalmic veinThe optic nerve is transmitted via the optic canal. The optic canal transmits optic nerve, ophthalmic artery and central retinal vein.