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
In crutch paralysis most frequently affected nerve is? 
Select and explain. 
A. Median nerve, B. Radial nerve, C. Axillary nerve, D. Musculocutaneous nerve
C: Axillary nerve
Answer: C: Axillary nerve 
Explanation: Crutch paralysis: It follows prolonged use of crutches in the axilla. Most frequently, it involves the radial nerve.Effects of radial nerve injury in the axilla:Motor loss: Loss of extension at elbow due to paralysis of triceps brachiiLoss of extension at wrist (wrist drop)Sensory loss:Loss of sensation over;Posterior surface of lower pa of armDorsum of base of thumb and Small area over back of forearm.