Question

Which is not correct about placenta?

• A. It prevents passage of maternal IgG to foetus.
• B. It acts as foetal lung.
• C. It acts as foetal liver.
• D. It acts as endocrine gland.

Answer 1

Answer: (A)

It prevents passage of maternal IgG to foetus.

The placenta is a cushion-like tissue which facilitates the supply of oxygen and nutrients to the embryo and also the removal of carbon dioxide and excretory waste materials produced by the embryo. It also acts as an endocrine tissue and produces several hormones such as human chorionic gonadotropin, human placental lactogen, estrogens, progesterone and relaxin during pregnancy.

So, the correct option is 'It prevents passage of maternal IgG to the foetus'.