The menstrual cycle is a complex biological process regulated by hormones, crucial for female reproductive health and fertility. This cycle typically lasts about 28 days and involves changes in the uterus and ovaries to prepare for potential pregnancy.

Key points of the menstrual cycle:
• Controlled by hormones from the pituitary gland and ovaries
• Consists of the follicular phase, ovulation, and luteal phase
• Involves the shedding of the uterine lining if fertilization doesn't occur
• Menstrual cycle hormones GCSE play a vital role in regulating the process
• Understanding the cycle is essential for Biology paper 2 GCSE revision puberty menstrual cycle AQA questions