NEET BIOLOGY

Detailed explanation-1: -The alternate fate of the corpus luteum occurs if the egg does not undergo fertilization. It will stop secreting progesterone and will decay and turn into a corpus albicans. This decay usually occurs around day 10. Without progesterone maintaining the endometrium, females will shed the lining resulting in menstruation.

Detailed explanation-2: -If the egg doesn’t get fertilized, your corpus luteum will start to break down around 10 days after the egg leaves the dominant follicle. Without the progesterone, your uterus lining won’t go through the changes that support pregnancy. Instead, you’ll shed the lining during your period.

Detailed explanation-3: -If a fertilized egg doesn’t implant in the endometrium, a pregnancy doesn’t occur. The corpus luteum shrinks away, and progesterone levels drop. The uterine lining is then shed as part of menstruation.

Detailed explanation-4: -If you’re pregnant, your corpus luteum usually goes away around week 12, when the placenta starts making enough progesterone to keep the fetus healthy. If the egg doesn’t get fertilized, your corpus luteum usually goes away 10 days after the egg left your ovary.

Detailed explanation-5: -Low blood concentrations of FSH and LH result, and loss of these hormones finally causes the corpus luteum to degenerate completely, a process calledinvolution of the corpus luteum.