GCSE Biology - Contraception | Hormonal vs Non-Hormonal Contraception

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*** WHAT'S COVERED ***
1. Introduction to Contraception
* Definition: Artificial methods used to prevent pregnancy.
* Categorisation: Hormonal and non-hormonal methods.
2. How Pregnancy Starts
* Overview of the menstrual cycle hormones (FSH, LH).
* Process of ovulation, fertilisation, and implantation.
3. Hormonal Methods of Contraception
* Mechanisms involving oestrogen (inhibiting egg release) and progesterone (thickening cervical mucus).
* Examples discussed: Combined pill, progesterone-only pill, contraceptive patch, injection, implant, and hormonal intrauterine device (IUD).
* General effectiveness and potential side effects.
4. Non-Hormonal Methods of Contraception
* How these methods prevent sperm from meeting the egg.
* Barrier methods: Condoms (male and female), diaphragm, and their role in preventing sexually transmitted diseases (STDs).
* Spermicides: How they work and their reliability.
* Copper IUD: Mechanism of action (killing sperm).
* Sterilisation: Surgical methods for females (tubal ligation) and males (vasectomy).
* Natural methods: Brief mention and their unreliability.
* Abstinence as the only 100% effective method.

*** CHAPTERS ***
0:00 Introduction to Contraception
0:28 How Pregnancy Starts
1:50 Hormonal Methods
2:00 Oestrogen's Role in Contraception
2:14 Progesterone's Role in Contraception
2:27 Combined Oral Contraceptive Pill
2:53 Progesterone-Only Pill
3:02 Contraceptive Patch
3:19 Contraceptive Injection
3:30 Contraceptive Implant
3:44 Intrauterine Device (IUD) - Hormonal & Copper
4:55 Non-Hormonal Methods
5:07 Condoms (Male & Female) and STD Protection
5:31 Diaphragm
5:43 Spermicide
5:58 Sterilisation (Female & Male)
6:31 Natural Methods & Abstinence

*** PLAYLISTS ***










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