What is placenta? State its function in human female.
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Placenta is a special umbilical cord develops in the fourth week which establishes an intimate connection between the foetal membrane and he uterine wall. Function of Placenta: The exchange of materials between the mother’s blood and the blood of foetus takes place through placenta. It serves as a nutritive, respiratory and excretory organ of the foetus.
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It is the special tissue in the form of disc which is embedded in the uterus wall.
Function : It provides nourishment to the embryo
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