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How do Organisms Reproduce?
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29/11/2020 12:11 pm
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What is placenta? Mention its role during pregnancy?
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29/11/2020 12:12 pm
Placenta is a special tissue that develops between the uterine wall and the embryo (foetus).
The role of placenta during pregnancy is as follows:
- Placenta attaches the foetus to uterine wall.
- It possesses villi that increases the surface area for fixation and absorption.
- It facilitates the passage of nutrition and oxygen to embryo from mother through blood.
- Waste substances produced by embryo (foetus) are removed through placenta into mother’s blood.