Question

Describe the function and the structure of placenta.
(2 marks)

Answer 1

Answer:

Describe the function and the structure of placenta.

Explanation:

The placenta is the composite structure of embryonic and maternal tissues that supplies nutrients to the developing embryo. The placenta serves three main functions: Attach the fetus to the uterine wall. ... Allow the fetus to transfer waste products to the mother's blood.

Answer 2

Structure:

1. Placenta has a disc like structure which is embedded in the wall of the uterus.
2. It contains villi on the side of the embryo.

Function:

1. Food materials and oxygen passes from the mother's blood into the foetal blood through the placenta.
2. It acts as a protective membrane and provides immunity.