Placenta Definition

Placenta refers to the temporary vascular organ found in mammals, which attaches the fetus to the uterus of the mother during pregnancy.

The placenta is the passage that unites the fetus to the mother. Through placenta, there is transmission of nutrients and oxygen from mother to the fetus, and the release of carbon dioxide and waste materials from the fetus. In appearance, the placenta is disk shaped and measures up to 22 cm in length. The placenta is also rich in blood vessels.

A placenta is only found in the uterus of pregnant mammals, and provides nourishment through the umbilical cord. The placenta is usually attached at the top, bottom, side, front or back of the uterus. In extreme cases the placenta gets attached to the lower part of the uterus, and this placenta is known as placenta previa.

Main Article: Name the organ which connects placenta to embryo. – Q&A

Frequently Asked Questions on Placenta

Define placenta.

Placenta is defined as an organ that develops during pregnancy in mammals. The placenta provides oxygen and nutrients to the growing fetus in the uterus of the mother.

What are the types of placenta?

Placenta in mammals is divided into two types, namely yolk sac placenta and chorioallantoic placenta.

Further Reading:

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