Science: Biology

5.3.2 The Menstrual Cycle (HT Only)

Exam Board: AQA

The Menstrual Cycle 

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(HT Only) Cycle Steps  

1. FSH ↑ → egg matures  

2. Oestrogen ↑ → lining thickens  

3. LH surge → ovulation  

4. Progesterone ↑ → lining maintained

(graph being added soon)