The male reproductive system contains these parts:
testes (pronounced "test-eez")
The two testes (one of them is called a testis) are contained in a bag of skin called the scrotum. They have two functions:
to produce millions of male sex cells called sperm
to make male sex hormones, which affect the way a man's body develops.
The sperm pass through the sperm ducts, and mix with fluids produced by the glands. The fluids provide the sperm cells with nutrients. The mixture of sperm and fluids is called semen.
The penis has two functions:
to pass urine out of the man's body
to pass semen into the vagina of a woman during sexual intercourse.
The urethra is the tube inside the penis that can carry urine or semen. A ring of muscle makes sure that there is no chance of urine and semen getting mixed up.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.