Side View of the Prostate
The prostate is a walnut-sized gland located between the bladder and the
penis. The prostate is just in front of the rectum. The urethra runs through
the center of the prostate, from the bladder to the penis, letting urine flow
out of the body.
The prostate secretes fluid that nourishes and protects sperm. During
ejaculation, the prostate squeezes this fluid into the urethra, and it’s
expelled with sperm as semen.
The vasa deferentia (singular: vas deferens) bring sperm from the testes to
the seminal vesicles. The seminal vesicles contribute fluid to semen during