This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fracture of the Humerus, Subject name: Orthopaedics
Fracture shaft of humerus damages which nerve? 
Select and explain. 
A. Radial nerve, B. Median nerve, C. Axillary nerve, D. Ulnar nerve
A: Radial nerve
Answer: A: Radial nerve 
Explanation: ANSWER: (A) Radial nerveREF: Snell's anatomy 7th ed p. 484Radial nerve injury is seen in:Fracture shaft of humerusSaturday night palsyInjection palsyFeatures of radial nerve injury:Sensory loss over area supplied by posterior cutaneous nerve of forearm.Wrist, thumb and finger extension is lost.