This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forearm, Subject name: Anatomy
Extensor carpi radialis longus is a/an - 
Select and explain. 
A. Wrist extensor, B. Wrist adductor, C. Extensor of MCP joint, D. Extensor of IP joint
A: Wrist extensor
Answer: A: Wrist extensor 
Explanation: Ans. is 'a' i.e., Wrist extensoro Extensor carpi radialis longus causes :-i) Extension of wristii) Abduction of wristo It is supplied by radial nerve.