1. Puberty Reproduction Pregnancy
MHS

2. The Zygote A normal cell has 46 chromosomes Male gamete sperm has 23
Female gamete ovum also has 23
2 gametes unite  ZYGOTE is formed!
1st CELL

3. Hormones Involved Men: Women: FSH, LH (from brain) make TESTES work
TESTOSTERONE (TESTES)
Women:
FSH, LH (from brain) – make OVARIES work
ESTROGEN AND PROGESTERONE

4. Male Reproductive Organ
Scrotum: keep testicles cool: no deformed gametes
Testicles: 400 million sperm a day!
Epididymis: on top of testes  sperm stored here

5. Vas deferens: tube from testes to bladder.
Prostate & SV: makes semen (nourishes gametes)
Urethra: tube from bladder to outside
Cowper’s gland: neutralizes acid urine.

6. What does each part do?

7. Female Reproductive Organ
Ovaries: take turns releasing an egg every 28 days
Follicles: Surrounds ovum and brings it to full maturity
Fallopian tubes: tube from ovary to uterus

8. What does each part do?

9. The Menstrual Cycle 28 days. Start with MENSTRUATION  5 days
Body acts like you are pregnant lining of uterus thickens until day 28
(OVULATION) day 14. – EGG RELEASED
– time to get pregnant is here + or – 5 days.

10. Risks during pregnancy
Highest risks are in the first 2 months…
Cigarette smoke, alcohol, drugs go from mom’s blood to baby’s via the placenta and umbilical cord.
Cigarettes  not enough O2  growth prob and nicotine withdrawal

11. Contraception Condom: only way of preventing STIs !!!
Diaphragm: Re-usable… covers the cervix.
IUDs: stops the zygote from implanting in the uterus
Oral contraceptive: prevent ovulation – must be taken every day. Don’t miss a day!

12. More permanent Tubal ligation: tying off the fallopian tubes
Usually irreversible.
Vasectomy: cutting the vas deferens.
Sperm but no spermatozoa

13. STIs Bacterial infections: treated with antibiotics: Syphilis:
Gonorrhea
Chlamydia

14. STIs Viral: stays with you forever… symptoms may come and go.
Hepatitis
AIDS
Condyloma
Genital herpes