Question

Qno:-what happen during child birth?
Ans:- ​

Answer 1

Here is your answer.....

Labor begins when the cervix begins to open (dilate) and thin (called effacement). The muscles of the uterus tighten (contract) at regular intervals, causing the cervix to thin and open. During contractions, the abdomen becomes hard. Between contractions, the uterus relaxes and the abdomen becomes soft.....

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Answer 2

Answer:

During childbirth, the muscles at the top of your uterus press down on the baby's bottom. Your baby's head then presses on your cervix which, along with the release of the hormone oxytocin (see 'How hormones help you give birth', below), brings on contractions.