Parts of the male reproductive system
The organs of the male reproductive system are:
- The testicles. They are the male gonads, responsible for producing spermatozoa. They are located outside the abdomen, inside a bag called the scrotum, where their temperature is a couple of degrees lower and more appropriate for the creation of sperm. They also secrete testosterone, the sex hormone that produces the appearance of secondary sexual characteristics in men.
- The epididymis. It is a tube formed by seminiferous tubules, very folded in on itself, located in the upper part of each testicle. Inside it, sperm
mature.
- The vas deferens. It is the tube that communicates each epididymis with the urethra. Here sperm are stored until they exit into the urethra.
- The seminal vesicles. Located behind the urinary bladder, these glands discharge seminal fluid into the vas deferens, which serves as a vehicle and food for the sperm.
- The prostate. Gland located under the urinary bladder that surrounds the urethra. It produces prostatic fluid, which serves to neutralize the acidity of the urethra and vagina and stimulate the mobility of sperm.
Video: Prostatic hypertrophy.
- Cowper's glands or bulbourethral glands. Located under the prostate, they have the function of secreting an alkaline liquid that lubricates and neutralizes the acidity of the urethra before ejaculation. This precum may contain some sperm.
The sperm is viscous whitish liquid that is expelled through the urethra during ejaculation, formed by the set of spermatozoa and all substances that are added along the path of the reproductive system.
- The urethra. It is the tube that crosses the penis and that is common to the urinary system and the reproductive system. Urine and semen are expelled through the urethra.

- The penis. It is the copulatory organ, and has the function of depositing semen inside the vagina. The urethra is covered by a tissue, the corpus spongiosum, which widens in the front part forming the glans, a very sensitive area that is covered by a fold of skin, the foreskin. In addition, in the penis there are also two spongy masses of erectile tissue, the corpora cavernosa, located above the urethra.
With sexual arousal, the blood vessels dilate and the corpora cavernosa fill with blood, making the penis stiff (erection) and facilitating penetration into the vagina.
Animation: Male reproductive system.
Activity: Male reproductive system.
Activity: Male genital tract.
Activity: Crossword with the parts of the male reproductive system.
Activity: Male reproductive system.
Activity: Male reproductive system.
Activity: Male reproductive system.
Activity: Male reproductive system.
Test and video: The male reproductive system.
Game: Parts of the male reproductive system.
3D model: Male reproductive organs anatomy.
Curiosity: Priapus had phimosis.
Animation: L´appareil reproducteur masculin.