Viagra works by blocking ________________ in order to raise cGMP concentration and promote vasodilation of vascular smooth muscle of the penis to produce an erection.
A)5-alpha reductase
B)aromatase
C)ATPase
D)cGMP phosphodiesterase

Question

Quizplus · Accepted Answer

Viagra blocks the enzyme cGMP phosphodiesterase, which breaks down cGMP. By inhibiting this enzyme, Viagra increases the concentration of cGMP, which promotes vasodilation and blood flow to the penis, helping to produce and maintain an erection.

Viagra Works by Blocking ________________ in Order to Raise CGMP