Vecuronium acts on :
Ans. is 'b' i.e. Myoneural junction Vecuronium is a non depolarizing neuromuscular blocking agent.It acts on nicotinic receptor at neuromuscular junctions and blocks the depolarization by inhibiting Na+ channels.
Cerebral cortex
Myoneural junction
Muscle fibres
Spinal cord
A.N.S.