What role do FSH and LH play in the regulation of the menstrual cycle?

FSH (follicle-stimulating hormone) and LH (luteinizing hormone) are two hormones that play key roles in regulating the menstrual cycle. FSH helps stimulate the growth of follicles in the ovaries, which contain eggs. LH triggers ovulation, the release of a mature egg from the follicle. Together, FSH and LH help control the timing and progression of the menstrual cycle.