What is the primary function of the placenta during pregnancy?

• A. To facilitate waste removal from the fetus
• B. To allow the embryo to be nourished with the mother's blood
• C. To produce hormones for fetal growth
• D. To serve as a barrier to pathogens

Answer: (B)

The primary function of the placenta during pregnancy is to allow the embryo to be nourished with the mother's blood. The placenta is a vital organ that develops in the uterus during pregnancy, providing a connection between the mother and the developing fetus. It facilitates the transfer of nutrients and oxygen from the mother's bloodstream to the fetus, while also allowing for the removal of waste products from the fetal circulation. This exchange is essential for the growth and development of the fetus, ensuring it receives the necessary nutrients for healthy development.

While the placenta does play a role in waste removal and hormone production, its most critical function in terms of supporting the fetus's needs is the nourishment provided through the mother's blood. This connection is crucial for the overall health of both the embryo and the mother throughout the pregnancy period.