Which statement does NOT describe erection
A)It involves dilation of the arterioles supplying the sponge-like vascular spaces of the penis.
B)It results from cGMP production induced by nitric oxide.
C)It occurs when the seminiferous tubules of the penis become engorged with sperm.
D)It occurs when sympathetic input to the arterioles is inhibited.

Question

Quizplus · Accepted Answer

Erection does not occur when the seminiferous tubules of the penis become engorged with sperm. It is caused by the dilation of the arterioles supplying the sponge-like vascular spaces of the penis due to the production of cGMP induced by nitric oxide. Sympathetic input to the arterioles must be inhibited for an erection to occur.

Which Statement Does NOT Describe Erection