The drug Atropine blocks the action of of acetylcholine on structures innervated by post-ganglionic cholinergic neurones.

State precisely which part of the nervous system will be affected by atropine and suggest why atropine might be used during anesthesia.

Answer:

It acts on the parasympathetic branch of the autonomic nervous system.

It is used to prevent excessive secretion of saliva, mucus. And prevent bronchial constriction. Also, stops heart slowing.