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
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, a non-depolarizing blocker, acts on nicotinic receptors at myoneural junction.