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Found Placenta 5 times.

Displaying results 1 to 10.

1. Placenta
* A structure formed on the wall of the uterus during pregnancy which serves to exchange oxygen, wastes and nutrients between the mother's blood and the embryo / fetus' blood; the placenta is expelled as afterbirth. * In plants: a region, within an ovary , to which ovule s are attached.

2. Placenta previa
This is an obstetric emergency in which part or all of the placenta is attached to the lower uterine segment and obstructs part or all of the cervix . During active labor, there is a risk that the placenta separates from the uterus before delivery of the fetus , causing massive hemorrhage .

3. Placenta
An organ produced from interlocking maternal and embryonic tissue in placental mammals; supplies nutrients to the embryo and fetus and removes wastes.

4. Placental mammals
One of three groups of mammals that carry their young in the mother's body for long periods during which the fetus is nourished by the placenta. Humans are placental mammals.

5. Placentation
* In mammals, the process of a placenta forming during gestation. * In plants, the arrangement of placenta s, and hence of ovule s, within an ovary .

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