The male reproductive system consists of external genitals like the penis and scrotum, as well as internal structures like the testes, vas deferens, seminal vesicles, and prostate gland. The testes produce sperm and testosterone over 20 days as sperm mature in the epididymis before being transported through the vas deferens. During ejaculation, seminal fluids are secreted by structures like the seminal vesicles and prostate to form semen, which contains sperm. The female reproductive system includes internal structures like the ovaries, fallopian tubes, and uterus. The ovaries hold eggs and release one each month during ovulation. If the egg is fertilized by sperm, it travels through the fallopian tubes to implant in

1. Male Female

2. Anatomy of the Male Reproductive System

3. Scrotum pouch of skin that hangs at root of penis and contains the testes Protective sac provides temperature about 3  C below body temperature for proper sperm production

4. Testes Glands that produce sperm Secrete testosterone

5. Epididymis Stores sperm temporarily Takes about 20 days for sperm to mature

6. Vas Deferens Muscle contractions propel live sperm to urethra Transportation system cut during a vasectomy for birth control

7. Urethra conveys urine & semen to tip of penis

8. Seminal Vesicles Secretes fluid to form semen produces 60% of fluid in semen yellowish thick fluid

9. Prostate Gland Secretes fluid to form semen 33% of semen volume Site for prostate cancer

10. Cowper’s Glands Secretes fluid to form semen produce thick, clear mucus released prior to ejaculation

11. Bladder Urine storage

12. Penis External reproductive organ Erectile tissue becomes engorged with blood during an erection. Blood flow is cut off trapping blood causing penis to stiffen and become elongated.

13. Semen mixture of sperm & secretions transport medium, nutrients, & chemicals that protect & facilitate movement of sperm 2-6 ml released each ejaculation 50-100 million sperm in each ml

14. Anatomy of the Female Reproductive System

15. Ovaries Houses eggs(ova). each month an adult woman will release one mature egg called ovulation. Only 400-500 eggs of potential 700,000 are released during a lifetime. Produces female sex hormones.

16. Fallopian Tubes provide site where fertilization can occur little or no contact with ovary Transfers egg(ovum) Tubal ligation

17. Uterus Muscular pear shaped organ hollow, thick-walled organ that functions to receive, retain, & nourish a fertilized egg and developing baby Thickens if fertilized(zygote). Breaks down and sheds if not fertilized(menstruation).

18. Vagina birth canal receives penis & semen during intercourse

19. External Genitalia labia majora: two elongated, hair-covered fatty skin folds labia minora: two thin hair-free folds covered with mucosa & sebaceous glands Both are used for protection

20. Bladder Urine storage

21. Cervix Neck of the uterus and vagina Dialation

22. Urethra Urine exits

23. Endometrium Inner lining of the uterus Excessive shedding of the uterus is a disease called endometriosis

24. Eggs(ova) Mature ovum Maturing ovum