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Female Reproduction & Birth Control

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Presentation on theme: "Female Reproduction & Birth Control"— Presentation transcript:

1 Female Reproduction & Birth Control

2 Outline Female Reproductive Structures
Closer look at the ovary and hormonal control Ovulation & Menstrual Cycle Contraception

3 Female Reproductive Tract
Internal reproductive organs External genitalia

4 Histology of the human ovary

5 Hormonal control hypothalamus & pituitary glands

6 Hormonal control of the ovary

7 Hormones and Menstrual Cycle
Ovulation and LH Surge

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10 Types of Birth Controls
Hormonal methods Prevention of implantation Barrier methods RU 486

11 Oral Contraceptives

12 Oral Contraceptives Oral contraceptives:
are bases on the fact that estrogen and progesterone can inhibit GnRH.

13 Types of oral contraceptives
Combination of: synthetic progestins and estrogens Minipill: contains only progesterone-like substances

14 Disadvantages:Oral Contraceptives
Controversy: associated with BRCA Does NOT protect against STD’s mammogram

15 Norplant and Depo-Provera
implanted beneath the skin lasts 5 year, progesterone-like steroids Intramuscular injection of progesterone like substance every 3 months

16 RU 486: within 72 hours of intercourse
Has antiprogesterone activity RU 486 (mifepristone) is followed by prostaglandin derivative Endometrium erodes and contraction of myometrium

17 Plan B Plan B® is an emergency contraceptive that can still prevent a pregnancy after contraceptive failure or unprotected sex. Plan B® should be taken within 3 days (72 hours) of unprotected sex and can reduce the risk of pregnancy by 89%. But the sooner you take it the more effective it will be. Plan B® is not RU-486 (the abortion pill); it will not work if you are already pregnant. Has progesterone activity

18 Intrauterine device (IUD)
Acts prior to fertilization Interferes with implantation

19 Condoms Advantage protects against STD’s Latex
Female condom polyurethane

20 Vaginal Sponge May be inserted as much as 24 hrs before intercourse
May irritate vaginal lining May fragment

21 Diaphragms and Cervical Caps

22 Sterilization Vasectomy Tubal Ligation

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24 Fertilization An egg can be fertilized for 12-24 hours after ovulation
Sperm can be viable for 4-6 days Approximately 1 minute after intercourse sperm are in uterus

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