structure of placeta
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The placenta is composed of both maternal tissue and tissue derived from the embryo. The chorion is the embryonic-derived portion of the placenta. It is composed of fetal blood vessels and trophoblasts which are organized into finger-like structures called chorionic villi.
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Explanation:
The placenta is composed of both maternal tissue and tissue derived from the embryo that is the embryonic derived portion of the placenta it is composed of fetal blood vessel and trophoblasts which are organised into finger like structure call chronic villi .
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