What happens to the wall of the uterus during the menstruation?
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Answer :
a) If the fertilization does no take place, the egg or ova is shed out of the body. The thick uterine lining that developed to receive the embryo also gets wasted.
b) During menstruation, this thick uterine lining/wall is shed out of the body and comes out of the vagina in the form of blood and mucus.
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The wall of the uterus starts breaking down into blood and tissue and it flows out of the body in the form of menstrual blood during menstruation.
Explanation:
- Menstruation occurs when the egg present in the ovaries is not fertilized, and the uterus lining that was created for pregnancy, starts breaking down in the presence of very low progesterone and estrogen.
- Menstruation lasts for 4 – 6 days and the menstrual cycle occurs once in every 26 to 30 days.
- When the egg gets fertilized, the zygote enters the uterus and starts growing, and the uterine wall provides nutrition to it and foetus forms, and eventually the baby.
Learn more about menstruation:
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