Page 72 - كتاب تمريض نسا الاكتروني
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70

            placenta































            Microscopic structure of the placenta:

            -The placenta is formed of many intervillous spaces filled with maternal blood.              -

            Each intervillous space lies in between two stem villi.



            Structure

            -Oval or circular

            -500 gm

            -15-20cm

            -1.5-2cm and tapering at the end

            -Upper uterine segment

            -2 surfaces: fetal and maternal

            1.Maternal surface

            -Covered by thin grey layer of decidua called (basal plate)

            -Dull red in color



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