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Which of the Following Correctly Describes an Erection

Question 38

Multiple Choice

Which of the following correctly describes an erection?


A) Smooth muscles of vascular spaces in the penis contract.
B) Parasympathetic impulses constrict arteries leading to the penis.
C) Parasympathetic neurons release nitric oxide causing dilation of small arteries in the penis.
D) The spongy tissue in the penis fills with air.

Correct Answer:

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