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: Orthopaedics
Nerve supply of the marked muscle is by 
Select and explain. 
A. Median nerve, B. Radial nerve, C. Ulnar nerve, D. Posterior interosseus nerve
A: Median nerve
Answer: A: Median nerve 
Explanation: The muscle marked is 1st lumbrical, and is supplied by median nerve.