Site of action of vecuronium is -
Cerebrum
Reticular formation
Motor neurone
Myoneural junction
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).