1. Human Reproductive System
Mrs. Degl

2. Male Reproductive System
Mrs. Degl

3. Sperm Formation MEIOSIS forms sperm Sperm forms in testes
Scrotum keeps cooler than rest
Semen is sperm plus protecting fluid
Semen leaves testes through the vas deferens (sperm ducts) to the urethra before it exits.
Mrs. Degl

4. Secondary Sexual Characteristics - Male
Produced by testosterone
Deeper voice
Chest and facial hair
Lengthening of bones
Increased size of testes for sperm production
Mrs. Degl

5. Female Reproductive System
Mrs. Degl

6. Ovum Formation MEIOSIS forms the eggs (ova)
Eggs are formed before birth
1 egg per month is matured and released from ovaries, most of the time
Eggs travel through the fallopian tube where they may become fertilized.
Mrs. Degl

7. Secondary Sexual Characteristics - Female
Induced by increased…
- LH- triggers ovulation
- FSH- Helps control menstrual cycle
- Estrogen-Primary sex hormone, crucial for female characteristics and reproductive health.
- Progesterone- Primary hormone in pregnancy.
Mrs. Degl

8. How do hormones work? Cross cell membrane via diffusion.
Attach to receptor cells
Particular genes and/or processes are triggered
Mrs. Degl

9. When can a woman get pregnant?
Woman are most fertile during ovulation.
Ovulation refers to the time that an egg is
released from the ovaries.
This usually occurs days
prior to menstruation.
Things such as diet, stress,
excessive exercise and illness
can all impact the timing of
ovulation.
Mrs. Degl

10. Fertilization Occurs in upper 1/3 of Fallopian tube
Only 1 sperm can fertilize an egg
Fertilized egg = zygote
An average woman is
pregnant for 9 months.
Mrs. Degl

11. Implantation Fertilized eggs are implanted into thick walls of uterus
Embryonic sac forms
Zygote grows into an embryo
Embryo gets oxygen and nutrients via diffusion through the umbilical cord
Mom and Baby DO NOT share a blood supply.
Mrs. Degl

12. 1st Trimester = 1st 12 weeks Heart develops first
Spine Fuses (folic acid)
All body systems appear by Week 8 – Now a Fetus
Mrs. Degl

13. Mrs. Degl

14. 2nd Trimester = up to 24 weeks
Most growth occurs
Looks more like a baby
Some premature babies survive at this stage

15. 3rd Trimester = Up to 40 weeks
More growth
Kicking, rolling, stretching
Eyes open – Week 32
Lungs mature
Rotates to head-down
position, unless baby is breech

16. Birth Labor Uterine contractions begin Cervix dilates to 10 cm. Birth
Uterus pushes baby through vaginal canal
Placenta delivered after baby
Cesarean Section (c-section) is a surgery that cuts through the uterus to deliver the baby if it cannot be born vaginally

17. Twins

18. How to prevent unplanned pregnancy
1. Don’t have sex
If you choose to have sex…
2. Be informed about various types of birth control available. Know their effectiveness, pros and cons.
pill, depo shot, Nuva Ring, diaphragm, IUD, female condom, male condom, patch, implant.
Have a plan BEFORE you become sexually active.
There is no one-size fits all birth control method

19. How to prevent unplanned pregnancy
3. Don’t believe the myths
– woman can get pregnant outside the “normal” ovulation time
“pulling-out” is not a guarantee
Women can get pregnant the first time you have sex.
It is possible to get pregnant while on your period.
It is possible to have your period while you are pregnant.
The morning after pill does not induce abortion
- Plan B is available to women ages 17 and up, over the counter 

20. How to prevent unplanned pregnancy
4. Get answers from reliable sources
Best source – Health care professional
5. Discuss safe sex and the potential for
pregancy with your partner.

21. gentlemen Be prepared – have condoms on hand.
Keep your stash fresh – don’t use a condom that has been in your wallet for months on end.
Condoms have expiration dates!!!
Be honest – If you make a mistake, tell your partner.
ie. The condom broke, I didn’t pull out in time…
Condoms are made of latex, there are non-latex condoms if you have a latex allergy.
Mrs. Degl