Background: Placenta is a functional unit between the mother and the fetus. It is the discoid, deciduate, haemochorial, chorioallantoic, endocrine gland which connects developing embryo by umbilical cord to the uterus. It develops from two sources. The fetal component which is the principal component develops from chorion frondosum and the maternal component from decidua basalis. If the decidual part of the placenta is healthy, the embryogenesis from germinal period up to the end of fetal period will be healthy. Otherwise it will lead to anomalies of the placenta, umbilical cord and of the fetus including low birth weight. There is a proven direct relationship between placental growth, fetal well-being and finally fetal outcome.
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