Atropine,a Muscarinic Blocker

Question

Atropine,a muscarinic blocker,
A) increases heart rate.
B) causes bradycardia.
C) is also classified as sympathomimetic.
D) is vagomimetic.

Accepted Answer

Atropine is a muscarinic antagonist, meaning it blocks the effects of the parasympathetic nervous system. One of the effects of the parasympathetic nervous system is to slow down the heart rate. By blocking this effect, atropine can increase heart rate.