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
[{'content': 'Nerve lying in the spiral groove of humerus is: \nSelect and explain. \nA. Musculocutaneous nerve, B. Ulnar nerve, C. Radial nerve, D. Median nerve', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Anatomy of radial nerve Formed by: Axons from Roots: C5 to T1 Brachial plexus Trunks: Superior, Medial and Inferior Cord: Posterior Axons pass through Spiral groove of humerus Fibrous arch attachment of triceps to humerus Lateral intermuscular septum below deltoid inseion Arcade of Frohse: Above supinator and below elbow Branches Above elbow - Above spiral groove (humerus)', 'role': 'assistant'}]