menstrual cycle
What menstrual cycle means in Biology GCSE, as defined for AQA, OCR.
Definitions of menstrual cycle
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Reference: OCR
A graph of this may show hormone levels (FSH, LH, oestrogen, progesterone), and the day ovulation occurs can be found by identifying the LH peak.
The cycle, controlled by hormones, in which one egg is usually released approximately every 28 days.
A cycle that oestrogen helps regulate, including thickening of the uterus lining.
Coordinated by four key hormones over approximately 28 days in females.
Topics that use menstrual cycle
- Hormones in human reproduction (AQA GCSE)
- Coordination and control – the endocrine system (OCR GCSE)
Related terms
- corpus luteum
- data interpretation
- Follicle stimulating hormone
- Ovulation
- progesterone
- testosterone
- adrenaline
- barrier methods
Using menstrual cycle in the exam
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