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Male Reproductive System

Male Reproductive System. Males begin producing sperm at puberty The production of sperm continues until very old age, unless disrupted by disease or environmental factors. Sperm. The Journey of Sperm.

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Male Reproductive System

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  1. Male Reproductive System

  2. Males begin producing sperm at puberty • The production of sperm continues until very old age, unless disrupted by disease or environmental factors

  3. Sperm

  4. The Journey of Sperm • Sperm are made in seminiferous tubules inside of the testes, which are held away from the body by the scrotum • sperm are produced at 97 degrees F • sperm are stored in the epididymis

  5. Sperm journey continue- • they travel to the urethra by the vas deferens • Sperm pass through seminal vesicles, which add fructose, amino acids, and vitamins for fuel

  6. Sperm also pass through- • The prostate gland adds an alkaline (basic) solution to neutralize the vagina’s acidic environment.

  7. Still traveling through the urethra- • Cowper’s gland has secreted mucus into the urethra and now adds thick alkaline solution to sperm and other fluids • This fluid is now called semen • The penis is an adaptation for internal fertilization

  8. Diagram

  9. Hormones….. • Between the seminiferous tubules in the testes are interstitial tissues where cells produce testosterone (the male hormone)

  10. Testosterone is responsible for the secondary sex characteristics which appear at puberty: • hair on face, legs, and armpits • formation of the “Adam's apple” • broad shoulders • change in voice

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