Page 89 - ترم ثاني كتاب تمريض صحة الام الكتروني
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maternal blood into the intervillous spaces of the placenta.
-There is relatively high pressure as the maternal blood fills intervillous space through
these spiral arteries which bathe the fetal villi in blood, allowing an exchange of gases to
take place.
-The maternal blood comes into direct contact with the fetal chorion, though/ but no
fluid is exchanged (placental barrier).
Function of decidua:
It is the site of implantation
Nutrition of the embryo (contain fat and glycogen)
Protection of uterine wall against invasion by chorionic villi
Formation of placenta
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