When A Child Is Born What Happens To Its Blood Circulation? Before birth, most of the baby’s blood circulation passes through the placenta, but bypasses the lungs. After delivery, the placental flow stops. Instead of going from the baby’s heart to the placenta, the blood from the heart needs to redirect through the newly expanded
Where Do Oxygen And Nutrients Enter The Fetal Blood Stream And Carbon Dioxide And Wastes Exit? The fetus gets all the needed nutrition, oxygen and life support through the blood vessels in the umbilical cord. This comes from the mother through the placenta. Waste products and carbon dioxide from the fetus are sent back through
What Is The Function Of The Foramen Ovale In The Fetus? Before birth, the foramen ovale allows blood flow to bypass the lungs (a fetus gets the oxygen it needs from the placenta, not the lungs). That way, the heart doesn’t work hard to pump blood where it isn’t needed. When newborns take their first