GCSE Biology - The Menstrual Cycle & Puberty

⭐ https://www.cognito.org/ ⭐️

** 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 **
   • GCSE Maths (9-1)  

   • GCSE Biology (9-1)  

   • GCSE Chemistry (9-1)  

   • GCSE Physics (9-1)  

   • Alevel Biology  

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