1. MALE REPRODUCTION Chapter 18 Section 1 Page 429-435

2. MALE: Function of the testes Temperature in the testes Functions of the urethra One disorder of the male reproductive system 2 functions of the male reproductive system What should you feel for in doing a testicular self exam Circumcision Penis Epididymis Testosterone

4. Chapter 18 Section 1 Male Reproductive System

5. Functions of the Male Reproductive System 1. To make sperm The male sex cell 2.To fertilize the egg cell The female sex cell

6. Male Functions Testes: 1.Make sperm 50,000 per minute 2. Produce testosterone Main sex hormone of males Scrotum: Skin-covered sac that hangs from the body Lower temp. for sperm production

7. Male Functions Epididymis: Coiled tube where sperm mature and are stored 2-10 days to mature Vas Deferens: Tubes the sperm pass through to get fluids added (semen)

8. Male Functions Penis: 1.Removes urine from body 2.Delivers sperm to the female Changes: Erection: –Blood vessels fill with blood Ejaculation: –Sperm released from the penis after arousal “wet dream”

10. Preventing problems Jock Itch: Dry thoroughly after showering Avoid sharing towels with others Hernias: Avoid strenuous lifting Infertility: Avoid injuries to genitals Avoid drugs and alcohol

12. Early Detection is KEY Testicular Cancer: Most common in ages 15-35 1. Undescended testes as child 2. Genetic link Look for unusual lumps, swelling, feeling of heaviness, pain, and discomfort in scrotum or abdomen

13. Early Detection is KEY Prostate Cancer: Primarily in older men Testosterone can cause the prostate to enlarge Delaying treatment can be DEADLY