Question

What filters many harmful substances out of the mothers blood?

Answer 1

Blood from the mother passes through the placenta, filtering oxygen, glucose and other nutrients to your baby via the umbilical cord. The placenta also filters out substances that could be harmful to your baby and removes carbon dioxide and waste products from your baby's blood.

Step-by-step explanation:

Answer 2

The placenta also filters many harmful substances out of the mother's blood, so they are not transferred to the fetus, and maintains the corpus luteum in the mother's ovary.