1. The Reproductive System

2. Similarities and differences between males and females, but same goal: new life
Primary sex organs: gonads
Testes in males
Ovaries in females
These produce the gametes (sex cells)
Sperm in males
Ovum (egg) in females
Endocrine function also: secretion of hormones
Accessory sex organs
Internal glands and ducts
External genitalia

3. Hormones Pituitary FSH LH Follicle stimulating hormone
stimulates monthly ripening of follicles LH
Luteinizing hormone
stimulates ovulation
converts ruptured follicle into corpus luteum

4. Male Anatomy – frontal view

5. Male Anatomy

6. Human Male Reproductive System
Primary sex characteristics
Testes
Secondary Sex characteristics
Deepening if voice
Body hair
Increased muscle mass

7. Testes Spermatogenesis Epididymis Vas Deferens Begins at puberty
Several hundred million sperm made each day
Epididymis
Sperm mature and are stored
Vas Deferens
Transports sperm from epididymis (testes) to urethra

8. Sammy Sperm

9. Hormones Pituitary hormones Testes
FSH - acts on cells to help in sperm maturation
LH - stimulates cells in the seminiferous tubules to secrete testosterone
Testes
Testosterone

11. Human Female Reproductive System
Primary sex characteristics
Ovaries
Uterus
Fallopian Tubes (Oviducts)
Cervix

13. Human Female Reproductive System
Secondary sex characteristics
breast development
widening of hips

14. Hormones Ovaries Estrogen Progesterone
development of the endometrium (uterine lining)
repression of FSH by pituitary to prevent multiple ovulation
Progesterone
puts final touches on endometrium just prior to arrival of egg into the uterus

15. Female Anatomy- Frontal view

17. Ovaries, Oviduct, Uterus and Cervix
Ovary
Women are born with all the eggs they will have throughout the course of their lifetime
Oviduct
Transports eggs from ovary to uterus
Location of fertilization
Uterus
Development of zygote into fetus
Zygote attaches to lining of uterus
Cervix
Separation between vaginal tract and uterus

19. Ovulation

21. Fertilization
Union of sperm and egg = zygote
Occurs in the oviduct

22. Stages of Development

23. Journey of the Zygote