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Describe how the placenta chorionic villi and allantois are functionally and structurally related?
Wiki User
∙ 14y ago
. All three structures are involved in the transfer of
nutrients and waste products between the fetus and
mother. Blood vessels originating from the allantois
(one of the four embryonic membranes) extend into
the chorionic villi. The combination of the chorionic
villi and the portions of the uterine lining into which
they extend is called the placenta.
Wiki User
∙ 10y ago
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Name and describe the purpose of the 4 extra embryonic membranes?
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