Erectile function requires an increase in , whereas ejaculation involves increases in .
A)sympathetic nervous activity : parasympathetic nervous activity
B)parasympathetic nervous activity : sympathetic nervous activity
C)parasympathetic nervous activity : myogenic constriction of the vas deferens
D)myogenic dilation of vessels within erectile tissue : sympathetic nervous activity
E)myogenic dilation of vessels within erectile tissue : myogenic constriction of the vas deferens

Question

Quizplus · Accepted Answer

Erectile function is facilitated by increased parasympathetic nervous activity, which promotes vasodilation and blood flow to the penis. Ejaculation is mediated by increased sympathetic nervous activity, which triggers muscle contractions necessary for semen expulsion.

Erectile Function Requires an Increase in , Whereas Ejaculation Involves