All of the following are true of emission and ejaculation, except they
A) occur under sympathetic stimulation.
B) begin with peristaltic contractions of the ampulla.
C) are responsible for propelling semen toward the external urethral opening.
D) involve contractions of the seminal glands.
E) stimulate the release of urine from bladder to clean the urethra.

Question

Quizplus · Accepted Answer

Emission and ejaculation do not stimulate the release of urine from the bladder. The external urethral sphincter closes during emission and ejaculation to prevent urine from mixing with semen. Urination occurs during the filling phase of the bladder and is regulated by the parasympathetic nervous system.

All of the Following Are True of Emission and Ejaculation