NEET BIOLOGY

Detailed explanation-1: -Estrogen causes the lining to grow and thicken to prepare the uterus for pregnancy. In the middle of the cycle, an egg is released from one of the ovaries (ovulation). Following ovulation, levels of another hormone called progesterone begin to increase.

Detailed explanation-2: -The endometrium is the lining of the uterus that grows, differentiates, regresses, and regenerates in a cyclical manner in response to ovarian steroid hormones. Estrogen stimulates, whereas progesterone inhibits, endometrial growth.

Detailed explanation-3: -Estrogen promotes proliferation and growth of the endometrial lining while progesterone antagonizes estrogen-driven growth and promotes differentiation.

Detailed explanation-4: -Progesterone plays an important role in your menstrual cycle and pregnancy. Progesterone creates a healthy uterine lining to support a fertilized egg, embryo and fetus. If progesterone levels are too low during pregnancy, it could cause complications such as bleeding or miscarriage.