If fertilization does not occur, what happens to the corpus luteum after approximately ten to fourteen days?
Answer
It breaks down, causing progesterone and estrogen levels to drop
The corpus luteum, which forms from the ruptured follicle after ovulation, is maintained by hormonal signals to sustain high levels of progesterone, keeping the uterine lining stable for potential implantation. If the released egg is not fertilized, this structure begins to degenerate approximately ten to fourteen days after ovulation. This breakdown results in a sharp decline in the levels of both progesterone and estrogen. This drop in hormones signals the uterus that pregnancy has not occurred, prompting the breakdown and shedding of the endometrium, which initiates the next menstrual period and restarts the cycle.

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