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The uterus lining will come loose and a mentral cycle will begin.

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Q: What happen to the uterus lining if no pregnancy occurs?
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What will happen to the lining of the uterus if implantation of a fertilized egg cell occurs?

the lining of the uterus thickens,


What is the lining of the uterus breaking apart?

The lining of the uterus breaking apart is the mucus lining that is usually formed so as to create a conducive environment for a fertilized egg to develop. If the ovum is not fertilized, the thick lining breaks apart which is what causes menstruation.


What does it mean when an egg implants the lining of the uterus?

Pregnancy occurred.


Why does the lining of the uterus decrease between day 1 and day 5?

Because its when ovulation occurs and the inside liquids "eat" at the uterus lining.


Is pregnancy occurs only in periods?

I can happen when there's an egg in a woman's uterus. ONLY GIRLS CAN GET PREGNANT NATURALLY!


How does the fertilization affect the menstrual cycle?

Fertilization would be when conception occurs, if the fertilized egg implants itself in the uterus lining this is when pregnancy occurs and thus the menstrual cycles stop. Although fertilization doesn't always result in pregnancy, and pregnancy can miscarry at any point.


Why does the uterus lining change in thickness during the menstrual cycle?

Every month, the uterus prepares for the possibility of pregnancy, so if nothing happens, the uterus sheds the lining and passes out of the body.


Does the uterus enlarge when fertilization occurs?

No, the uterus does not begin growing until after the embryo implants in the uterine lining.


What are the functions of menstruation?

Biologically, it is said that in menstruation the uterus 'weeps', as there is no pregnancy. The lining of the uterus is shed in the menstruation. Uterus is ready to have fresh lining of the uterine wall through next menstrual cycle.


Where does period blood come out?

Menstruation is the process of the uterus lining shedding to ready itself for possible pregnancy next cycle. The uterine lining builds-up so that if a woman conceives the zygote can implant itself into the uterus to develop into a baby, if that doesn't happen the uterus lining sheds.


Can you do in vetro with lining of uterus removed?

No, you need a hospitable environment for the pregnancy to develop.


How does the uterus lining prepare for pregnancy?

The uterine lining creates a place for the fertilized egg to attach to in the uterus. Once the egg has attached to the uterine lining, it begins to grow. The lining also helps deliver nutrients to the developing fetus.