GENERAL HISTOLOGY

Detailed explanation-1: -With each monthly menstrual cycle, the endometrium prepares itself to nourish a fetus, as increased levels of estrogen and progesterone help to thicken its walls.

Detailed explanation-2: -The follicular phase of the female menstrual cycle includes the maturation of ovarian follicles to prepare one of them for release during ovulation. During the same period, there are concurrent changes in the endometrium, which is why the follicular phase is also known as the proliferative phase.

Detailed explanation-3: -Luteal phase It lasts about 14 days (unless fertilization occurs) and ends just before a menstrual period. During most of the luteal phase, the estrogen level is high. Estrogen also stimulates the endometrium to thicken.