Pharmacology An antagonist, such as atropine, can cause major physiological responses in man such as paralysis of accommodation dilated pupils, difficulty in micturition, and a dry mouth. Atropine can cause modest tachycardia (up to 8090 beats/min). This is due to: A) Stimulation of the sympathetic nervous system B) Inhibition of parasympathetic tone C) Stimulation of the parasympathetic nervous system D) An indirect effect due to nitric oxide.

1. Pharmacology
An antagonist, such as atropine, can cause major physiological responses in man such as
paralysis of accommodation dilated pupils, difficulty in micturition, and a dry mouth.
Atropine can cause modest tachycardia (up to 8090 beats/min). This is due to:
A) Stimulation of the sympathetic nervous system
B) Inhibition of parasympathetic tone
C) Stimulation of the parasympathetic nervous system
D) An indirect effect due to nitric oxide