Biology Chapter 34B Q16

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10 Terms

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chorion

surrounds the amnion

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chorion (2)

makes direct contact with the tissue of the uterus

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chorion (3)

creates the chorionic villi

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chorionic villi

small, finger-like projections (of the chorion)

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chorionic villi (2)

the site of exchange of substances between the maternal and fetal blood

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placenta

the combination of the (chorionic villi) and the uterine lining

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placenta (2)

the connection between the mother and the embryo

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placenta (3)

acts as the embryo's organ of respiration, nourishment, and excretion

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umbilical cord

the point of attachment between the embryo and the (placenta)

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umbilical cord (2)

contains two arteries and one vein