Did you know that before they are born, babies have a hole in their hearts?
We carry oxygen and glucose in our blood and the heart pumps it around the body.
The left ventricle pumps blood to the systemic system (body) and the right to the pulmonary (lungs).
However, a fetus receives it's oxygen from it's mothers blood.
The placenta is a region where the mother and fetus's blood interact.
When the baby is born, the hole in the heart closes.
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