Question

Explain the follicular phases in the menstrual cycle of a human female.

Answer 1

• The follicular phase starts on the first day of menstruation and continues until ovulation.
• During this period, follicle-stimulating hormone (FSH) promotes the formation of ovarian follicles, each containing an immature egg.
• One dominant follicle continues to develop, while others degenerate.
• The dominant follicle secretes estrogen, which thickens the uterine lining in preparation for a future pregnancy.
• The endometrium regenerates.
• It lasts for about 10 to 14 days.