Which Statement About the Climax of Copulation in a Human

Multiple Choice

Which statement about the climax of copulation in a human male is true?

A) The same smooth muscles control emission and ejaculation.
B) Orgasm occurs during emission.
C) Emission follows ejaculation.
D) Ejaculation moves semen into the urethra at the base of the penis.
E) After ejaculation, release of nitric oxide decreases and cGMP is broken down, causing constriction of the blood vessels flowing into the penis.