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What is Parturition? Which Hormones Are Involved in Induction of Parturition? - Biology

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What is parturition? Which hormones are involved in induction of parturition?

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Solution 1

Parturition is the process of giving birth to a baby as the development of the foetus gets completed in the mother’s womb. The hormones involved in this process are oxytocin and relaxin. Oxytocin leads to the contraction of smooth muscles of myometrium of the uterus, which directs the full term foetus towards the birth canal. On the other hand, relaxin hormone causes relaxation of the pelvic ligaments and prepares the uterus for child birth.

Solution 2

The average duration of human pregnancy is about 9 months which is called gestation period. Vigorous contraction of the uterus at the end of pregnancy causes expulsion/delivery of the foetus. This process of delivery of the foetus is called parturition.It is induced by hormone oxytocin which acts on the uterine muscle and causes stronger uterine contractions.

Concept: Parturition and Lactation
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NCERT Class 12 Biology
Chapter 3 Human Reproduction
Exercises | Q 18 | Page 56

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