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Male Reproductive System

Male Reproductive System. Testes. responsible for making testosterone and sperm within the testes are coiled masses of tubes called seminiferous tubules responsible for producing the sperm cells through a process called spermatogenesis. Epididymis. Sperm move here to mature. Scrotum.

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Male Reproductive System

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  1. Male Reproductive System

  2. Testes • responsible for making testosterone and sperm • within the testes are coiled masses of tubes called seminiferous tubules • responsible for producing the sperm cells through a process called spermatogenesis

  3. Epididymis • Sperm move here to mature

  4. Scrotum • Loose patch of skin surrounding testes • protective function and acts as a climate control system for the testes • for normal sperm development, the testes must be at a temperature slightly cooler than the body temperature • Special muscles in the wall of the scrotum allow it to contract and relax, moving the testicles closer to the body for warmth and protection or farther away from the body to cool the temperature.

  5. Vas Deferens • transports mature sperm to the urethra in preparation for ejaculation

  6. Seminal Vesicles • The seminal vesicles produce a sugar-rich fluid (fructose) that provides sperm with a source of energy and helps with the sperms’ motility

  7. Prostate Gland • contributes additional fluid to the ejaculate • prostate fluids also help to nourish the sperm

  8. Cowper’s Glands • produce a clear, slippery fluid that empties directly into the urethra • this fluid serves to lubricate the urethra and to neutralize any acidity that may be present due to residual drops of urine in the urethra

  9. Urethra • Allows urine and semen to be secreted • Not at the same time

  10. Penis • Made of spongy tissues containing small blood vessels and nerves • Erection allows penis to harden in order to enter woman’s vagina

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