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: Anaesthesia
M.C. nerve used for monitoring during anaesthesia – 
Select and explain. 
A. Ulnar nerve, B. Facial nerve, C. Radial nerve, D. Median nerve
A: Ulnar nerve
Answer: A: Ulnar nerve 
Explanation: In anaesthetic practice neuromuscular block monitored recording contractile responses of thumb muscle (adductor pollicis) to transcutaneous ulnar nerve stimulation. Facial nerve stimulation of orbicularis oculi is the second most common.