→ Menstrual cycle: It is the reproductive cycle of female primates (such as monkeys, apes, and humans).
→ The menstrual cycle is the sequence of events that begins with one menstruation and ends with the next.
→ Menstruation occurs every 28/29 days in human females.
→ Menstruation, the follicular phase, ovulation, and the luteal phase are the four phases of the menstrual cycle.
→ Hormones that regulate the menstrual cycle are: Follicle-stimulating hormone (FSH), Luteinizing hormone (LH), Estrogen and Progesterone.