Also known as the bulbourethral glands, are located on either side of the urethra just below the prostate gland and their ducts open into the urethra. They secrete thick mucus acting as a lubricant.

Tube at the upper part of each testis where sperm is temporarily stored.

Lies under the bladder and surrounds the upper end of the urethra in the region where the vas deferens enters the urethra. The prostate gland secretes a thick fluid that, as part of the semen, aids the motility of the sperm.

Scrotum

External sac that encloses and supports the testes. It is suspended from the pubic arch behind the penis and lies between the thighs.

Ejaculatory fluid that contains sperm plus the secretions of the seminal vesicles, prostate gland and Cowper's glands.

Glands located at the base of the urinary bladder, opening into the vas deferens as it joins the urethra. They secrete a thick, yellow substance that nourishes the sperm cells and forms much of the volume of ejaculated semen. The ejaculatory duct in the seminal vesicles passes through the prostate gland and enters the urethra.

Sperm are the male gametes. Sperm are manufactured by the seminiferous tubules within the testes.

The testicles are two small egg-shaped glands that produce the spermatozoa (sperm) and testosterone (male sex hormone). This is the male gonad where the gametes are produced.

In the male, the urethra performs both a reproductive and urinary function. The urethra passes through the penis to the outside of the body.

Carries the sperm up into the pelvic region, around the urinary bladder, and then down toward the urethra.  At vasectomy, the vas deferens are ligated (tied), occluded (blocked) or fulgurated (sealed by electrical current).