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The uterine lining builds-up following ovulation in preparation for possible pregnancy, to allow the zygote to implant and nourish the growing 'baby'. If pregnancy doesn't occur the drop in progesterone triggers the uterus lining to break down, this is called menstruation.

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Q: What and the lining of the uterus break down?
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Related questions

Why does the uterus lining break down each month if the woman does not get pregnant?

because the egg is not needed so the lining of the stomach is not needed to protect the egg. The lining breaks down and this is a period.


When does the uterine lining begin to break down?

During Menstruation. The uterine lining sheds to prepare the uterus for pregnancy. It's due to the drop in estrogen and progesterone.


When does the uterus lining breaks down?

At the beginning of the menstrual period.


What are signs of your period?

you start to bleed as the uterus lining breaks down.


What happens to the lining of uterus when the yellow body degenerates?

When the yellow body (corpus luteum) degenerates and withers away, the lining of the uterus breaks down and menstruation occurs.


What are the hormones that are delivered to the lining of the uterus?

hormone that maintains the lining of the uterus?


What does the lining of the uterus do?

The lining of the uterus is what denigrates when your egg isn't fertilized and you get your period.


What is the role of uterus lining?

The lining of the uterus serves as a protection for the growing fetus.


Why do girl get their period?

When a woman ovulates, the lining of the uterus thickens to prepare for the zygote and when it's not fertilized the lining of the uterus breaks down and the egg and lining leaves the uterus by bleeding.


What is the menstrual flow?

Menstruation is the process in which the uterus lining breaks down and leaves the body - thus menstrual flow consists of uterus lining and blood from the uterus lining breaking down, it can also contain cervical mucus picked-up while the menstrual flow passes through the vaginal opening, and discharge from within the vagina.


When does uterine lining break down?

unsa?


Is it true your walls break down when I your period to rebuild?

Yes. A lining builds up in the uterus so it can support a fertilized egg that would become a baby. Your period is the lining shedding because it is no longer needed to support a fertilized egg.