Placental biology can be termed as the developmental biology of the Amniotic fluid and placenta.placenta can be defined as temporary organ joins the mother and fetus by tranferring nutrients and oxygen from mother to feutus and allowing relaease co2,waste products from feutus.The shape of placenta is disc shaped measuring seven inches in diameter and 2 inches thick with smooth upper surface and rough under surface.In general placenta are expelled during birth; together, these structures form the after birth.
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Last date updated on July, 2014