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Male External Reproductive Organs

Body Fact

A male’s outer sex organs are the penis, scrotum and testicles. They hang between the legs and can be seen when a boy is naked.

Penis: The penis is made of soft, spongy tissue and blood vessels. Urine leaves a male’s body through a small opening at the tip of his penis. Generally, the penis is soft and hangs down over the scrotum. Sometimes when the penis is touched or rubbed, it becomes stiff and hard, and larger and longer, and stands out from the body. This is called erection or to "have a hard-on."
Scrotum: The scrotum is a bag of wrinkled-looking skin that hangs outside a male’s body and protects the testicles.
Testicles: Males have two testicles (or testes) that hang outside their bodies. They are firm and oval-shaped organs that grow to the size of a very small ball during puberty. That’s why they are also called balls. Usually, one testicle hangs lower than the other to prevent them from crushing each other when moving the legs during any physical activity.

Male Internal Reproductive Organs
These are the epididymis, vas deferens, seminal vesicles and prostate gland, and urethra.
Epididymis: The epididymis are long tubes tightly coiled around the back of each penis. Sperm mature in and travel through the epididymis on their way to the vas deferens.
Vas Deferens: The two vas deferens are each about a foot and half long. Each of these long, narrow, flexible and fairly straight tubes starts at the epididymis and winds all the way to the urethra.
Seminal Vesicles and Prostate Gland: The two seminal vesicles and prostate gland produce fluids that combine with the sperm to form the semen. The fluid produced by the seminal vesicles gives sperm the energy to travel during ejaculation, while prostate gland helps to squeeze the semen through the urethra during ejaculation.
Urethra: The urethra is a long, narrow tube that carries urine from the bladder, where it is stored, to the penis and out through the opening at its tip. It is also the passageway through which semen leaves the male body.