NEET BIOLOGY

Detailed explanation-1: -Progesterone levels increase in the luteal phase, which help thicken the lining of your uterus. The increase in hormones: Prepares your uterine lining for pregnancy by making it thicker. The thick lining is the ideal environment for a fertilized egg to implant (attach) and a pregnancy to grow.

Detailed explanation-2: -During most of this phase, the estrogen level is high. Progesterone and estrogen cause the lining of the uterus to thicken more, to prepare for possible fertilization.

Detailed explanation-3: -During the Luteal Phase, the follicle that burst and released the egg (during ovulation) develops into a small yellow structure, or cyst, called the corpus luteum. The corpus luteum secretes progesterone and estrogen that cause the uterine lining, or endometrium, to thicken and be able to nourish a fertilized egg.

Detailed explanation-4: -What is the role of the endometrium? The endometrium changes throughout the menstrual cycle in response to hormones. During the first part of the cycle, the hormone estrogen is made by the ovaries. Estrogen causes the lining to grow and thicken to prepare the uterus for pregnancy.

Detailed explanation-5: -The part of your cycle between when you ovulate and when your period starts is called the secretory phase. During this time, your endometrium is at its thickest.