1. What is going on in these pictures?1 2 3 4

2. Reproduction

3. Male Reproduction

4. Male Reproductive Anatomy

5. Testes and Sperm
Testes: produce male sperm and male hormones (approximately 100 million /day)

6. Sperm Production

7. Sperm Production
The Sperm cells in the walls of testes mature into flagellated cells (cells with flagella / tails)

8. Sperm Production
Mature sperm is transported by the Seminiferous Tubules to the Epididymis which stores the sperm

9. Sperm Production
During sexual arousal, sperm is transported from the epididymis through the tubular Vas Deferens, out of the scrotum and into the abdomen and enters the prostrate gland

10. Sperm Production
The prostrate gland and the sac-like seminal vesicles add fluid to the sperm
Semen- combination of sperm, prostate, Cowper’s, and seminal fluid. One drop contains 5-10 million sperm.

11. Sperm Production
Inside the prostrate gland the Vas Deferens joins the urethra, the tubular structure that goes through the penis

12. Sperm Production
Sperm travels through the urethra and is ejaculated by the penis
Sperm Production

13. The Path of Sperm

14. Female Reproduction

15. Labia Majora and Minora- protective folds of skin.
Urethra- passageway from bladder to outside of body.
Clitoris- small area of erectile tissue.

16. Female Reproductive Anatomy

17. Female Reproductive Anatomy

18. Ovary and Ovulation The Ovaries produce and store eggs
Eggs develop within a structure called a follicle
Egg Cell Production

19. Ovulation
A mature egg is released from the ovary in a process called ovulation
Ovulation

20. The Fallopian Tube
The egg is transported by one of the fallopian tubes to the uterus
Eggs are usually fertilized in the Fallopian tubes / Oviduct
A fertilized egg develops in the uterus
Cell Division

21. Female Anatomy

22. The Placenta
Nutrients pass from the mother to developing embryo through a membrane called the placenta
Placenta Formation

23. The Placenta
The umbilical cord is a cord containing arteries and veins that connect the fetus to the placenta. Kids Umbilical Cord

24. The Amniotic Sac baby protection
The amniotic sac is filled up with fluid to cushion and protect the fetus as it grows
Amniotic Fluid

25. Menstruation
If the fertilized egg fails to implant or the egg is not fertilized, extra blood and tissue from the uterus are released through the vagina in a process called Menstruation.
Animation

26. Hormones control when girls start menstruating (between yrs old) and when women stop menstruating (menopause) at around 50 yrs of age.

28. Days1-4 Menstrual discharge

29. Days 5-13 Egg develops in follicle. Luteinizing hormone (LH) levels
increase.

30. Days 14-15. Ovulation – egg is released from the ovary
Days Ovulation – egg is released from the ovary. (LH levels peak)

31. Days 16-22. Egg moves through the fallopian tubes
Days Egg moves through the fallopian tubes. Uterine lining thickens. (LH levels drop).

32. Days 23-28. Unfertilized egg enters the uterus
Days Unfertilized egg enters the uterus. Uterus prepares to shed its lining (menstruation).

33. Differentiation
Multi-cellular organisms such as humans develop different group of cells that take on different functions…this is called Differentiation
This means that all different cells in the body are different in structure and function
Animation

34. Next…
A clip of a live birth…

35. Do your homework tonight
Just kidding…
Do your homework tonight

36. Normal Conception
(Intercourse)
(ovulation)
(both)