Placenta Previa »
What Is Placenta Previa?
The placenta
is the organ created during
pregnancy to nourish the fetus, remove its
waste, and produce hormones to sustain the pregnancy. The placenta is attached
to the wall of the uterus by blood vessels that supply the fetus with oxygen and nutrition, and which remove waste from the fetus and transfer it to the mother.
The fetus is attached to the placenta by the umbilical cord. Through the
cord, the fetus receives nourishment and oxygen and expels waste. On one side of
the placenta, the mother's blood circulates, and on the other side, fetal blood
circulates. The mother's blood and fetal blood usually don't mix in the
placenta.
The placenta is usually attached to the upper part of the uterus, away from
the cervix, the opening which the baby passes through during delivery. On rare
occasions, the placenta lies low in the uterus, partly or co...
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