what is menstruation cycle
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The menstrual cycle is the regular natural change that occurs in the female reproductive system that makes pregnancy possible. The cycle is required for the production of oocytes, and for the preparation of the uterus for pregnancy. The menstrual cycle occurs due to the rise and fall of estrogen.
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The menstrual cycle consists of three different phases namely:
Menstrual phase
Follicular phase
Luteal phase
The reproduction cycle of female primates is the menstrual cycle. It starts only after attaining sexual maturation.
During ovulation, only one ovum is released.
The cyclic changes in the uterus are regulated by the pituitary and ovarian hormones.
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