Question

Atropine is a that causes relaxation of the smooth muscle of the digestive tract, a dry mouth sensation, and dilated pupils. Therefore, atropine is a(n)____ and mimics the effect of the ____ nervous system.

(a) Adrenergic, parasympathetic

(b) Adrenergic, sympathetic

(c) Cholinergic, parasympathetic

(d) Cholinergic, sympathetic

Answer 1

Correct option: (b) Adrenergic, sympathetic

Explanation:

A **** that causes inhibition of peristaltic movement of the digestive tract, a dry mouth feeling, and dilation of the pupils mimics the effects of the sympathetic division of the ANS. Thus, its effects are similar to those caused by release of norepinephrine (noradrenaline) from sympathetic postganglionic fibers.