are produced by the testicles, which are located in the
scrotum. Once produced, the sperm exit the testicle through
the epididymis where they mature. The tail of the epididymis
drains into the vas deferens which is incorporated within
the spermatic cord and travels through the inguinal region
into the retroperitoneal space.
The vas eventually empties into the ejaculatory
duct within the prostate, along with the seminal vesicles.
At orgasm, semen is produced and is made up of sperm and
fluid from the prostate and seminal vesicles. Volume wise,
the sperm represent a small portion of the seminal fluid,
and after vasectomy there is no noticeable decrease in the
volume of the ejaculation. Sperm are still produced in the
testicle after vasectomy, however they can no longer pass
through the vas deferens since it has been divided with
vasectomy. The sperm die within the testicle and are reabsorbed.