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Jaylene Christensen
Biology
10 December, 21:23
What makes up the placenta?
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Milagros Pham
10 December, 21:30
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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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