http://www.ck12.org Chapter 1. Human Biology
1.66 Male Reproductive Structures
- Identify and describe the functions of the male reproductive organs.
What organs are unique to the male body?
Men and women share most of the same organs. We all have skin, a heart, and lungs. Men and women differ only in
their reproductive organs.
Male Reproductive Organs
The male reproductive organs include the penis, testes, and epididymis (Figure1.128). The figure also shows other
parts of the male reproductive system.
- Thepenisis a cylinder-shaped organ. It contains the urethra. Theurethrais a tube that carries urine out of
the body. The urethra also carries sperm out of the body. - The twotestes(singular, testis) are egg-shaped organs. They produce sperm and secrete testosterone. The
testes are found inside of the scrotum. Thescrotumis a sac that hangs down outside the body. The scrotum
also contains the epididymis.