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: Anatomy
Which of the following structure is passing through foramen rotundum? 
Select and explain. 
A. Maxillary aery, B. Maxillary nerve, C. Middle meningeal aery, D. Spinal accessory nerve
B: Maxillary nerve
Answer: B: Maxillary nerve 
Explanation: Foramen rotundum located posterior to the medial end of the superior orbital fissure. The foramen rotundum transmits the maxillary nerve (CN V-2) en route to the pterygopalatine fossa. CN V-2 supplies the skin, teeth, and mucosa associated with the maxillary bone.