This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscle relaxants, Subject name: Anaesthesia
site of action of vecuronium is 
Select and explain. 
A. Cerebrum, B. Reticular formation, C. Motor neuron, D. Myoneural junction
D: Myoneural junction
Answer: D: Myoneural junction 
Explanation: Vecuronium is the non-depolarising neuromuscular blocker, acts on nicotinic receptors(Nm) at myoneural junction.