a. During the 13-15 days, the ovulatory phase occurs in the menstrual cycle. The Graafian follicle ruptures to release the ovum. Generally, on the 14th day of the cycle, one ovum is released from one ovary. This process is called ovulation.
b. During the 16-23 days, the oestrogen levels drop whereas the progesterone levels increase.
c. During 24-29 days, the inner lining of the uterus i.e., endometrium, disintegrates and the menstrual cycle begins again.
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