5-hydroxytryptamine
A
Is found primarily in the gastro intestinal tract
B
Is metabolized by monoamineoxidase (MA
C
Is a vasodilator.
D
Is depleted from body stores by guanethidine
E
Action is antagonized by dopamine
Correct Answer: Is found primarily in the gastro intestinal tract, Is metabolized by monoamineoxidase (MA, Is a vasodilator.