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Male Reproductive System

Uploader: Mikajin 8 month ago  
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At orgasm, waves of muscle contractions transport the sperm, with a small amount of fluid, from the testes through to the vas deferens. The cells divide and change until they have a head and short tail, like tadpoles. The inside of the penis is made of a spongy tissue that can expand and contract. An erection begins with sensory and mental stimulation. Although the timing of these changes is different for every guy, the stages of puberty generally follow a set sequence:. Overview The key male reproductive organs include penis and sperm and semen testes, epididymis, urethra, vas deferens, prostate gland, seminal vesicle, and penis. Semen is pushed out of the male's body through his urethra this process is called ejaculation. If a mature penis and sperm and semen is in one of the female's fallopian tubes, a single sperm may penetrate it, and fertilization, or conception, occurs. Some boys are circumcised, which means that a doctor or clergy member cuts away the foreskin.

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