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
Nerve passing through the spiral groove of the humerus is - 
Select and explain. 
A. Radial Nerve, B. Ulnar Nerve, C. Musculocutaneous Nerve, D. Interosseous Nerve
A: Radial Nerve
Answer: A: Radial Nerve 
Explanation: The radial nerve passes through the humerus spiral groove and the arch formed by the attachment of the humerus and triceps. It also passes through the lateral intermuscular septum and the Arcade of Frohse. This is located below the elbow but above the supinator.