Histology and Histochemistry of Placenta in Pregnancies Complicated by Preeclampsia

The intrauterine existence of fetus solely depends on one organ “The Placenta”. Placenta is a vital organ playing central role in pregnancy. It maintains pregnancy and promotes normal fetal development and serves as a major organ for transfer of essential elements between mother and fetus. 1 It has a significant role in health of the fetus because it is the sole source of nutrients for the fetus and first line of defense from the external world. Placental function is highly influenced by its anatomical structure. 2 One of the key roles of placenta is the transport of maternal nutrients to the fetus. Many placental diseases result in fetal growth restriction or even fetal death. 3 Placental efficiency is improved by increase in placental nutrient transfer capacity and thus permits increase in the number of grams fetal weight. Placental insufficiency is major cause of impaired fetal growth. 1