Here's how it works:
* Maternal blood: The placenta is connected to the mother's circulatory system through the umbilical cord. It receives oxygen and nutrients from the mother's blood.
* Transfer of nutrients: The placenta filters and transports these nutrients from the mother's blood to the embryo's blood.
* Waste removal: The placenta also removes waste products from the embryo's blood, such as carbon dioxide and urea, and sends them back to the mother's body for disposal.
The placenta plays a vital role in providing the embryo with everything it needs to grow and develop until birth.
