GCSE Biology - The Menstrual Cycle & Puberty

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*** WHAT'S COVERED ***
1. Puberty Explained
* Definition and secondary sexual characteristics.
* Hormonal triggers: Testosterone in males and Oestrogen in females.
* Role of testes and ovaries.
2. The Female Reproductive System
* Key structures: Uterus, uterus lining, ovaries, fallopian tubes.
* Egg journey and implantation/breakdown.
3. The Menstrual Cycle
* Average length and variability.
* The four stages: Menstruation, lining build-up, ovulation, and lining maintenance.
* What happens if an egg is fertilised vs. not fertilised.
4. Hormonal Control of the Menstrual Cycle
* The four key hormones: Oestrogen, Progesterone, Luteinising Hormone (LH), and Follicle-Stimulating Hormone (FSH).
* Where each hormone is produced.
* The role of each hormone in the cycle.
* How the hormones interact (including negative feedback).

*** CHAPTERS ***
0:00 Introduction
0:31 What is Puberty?
1:23 The Female Reproductive System
2:12 Menstrual Cycle & Its Four Stages
4:21 Hormones Controlling Menstrual Cycle
5:38 Hormone Interactions in the Menstrual Cycle

*** PLAYLISTS ***










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