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: Pharmacology
Site of action of vecuronium is - 
Select and explain. 
A. Cerebrum, B. Reticular formation, C. Motor neurone, D. Myoneural junction
D: Myoneural junction
Answer: D: Myoneural junction 
Explanation: Ans. is 'd' i.e., Myoneural junction Vecuronium is a nondepolarizing (competitive) neuromuscular blocker. The site of action is the end plate of skeletal muscles (End plate is thickened poion of muscle membrane at neuromuscular junction).