Question

Which of the following are the functions of placenta?

• A. Facilitates removal of carbon dioxide and waste material from embryo
• B. Facilitates supply of oxygen and nutrients to embryo
• C. It forms the major part of the tube like structure umbilical cord.
• D. Protects the foetus from minor mechanical injury.

Answer 1

Answer: (A), (B)

Facilitates supply of oxygen and nutrients to embryo

The placenta is an organ that develops in the uterus during pregnancy. This structure provides oxygen and nutrients to a growing baby. It also removes waste products from the baby's blood. The placenta attaches to the wall of the uterus.
Amnion is an embryonic layer which forms the amniotic cavity. Amniotic cavity is filled with amniotic fluid which protects the foetus from minor mechanical injury.
Allantois is a membrane which originates from digestive canal of the embryo. It forms the major part of the tubelike structure umbilical cord.