So we have another type of shunt known as the ductus arteriosis. And because of the ductus arteriosis, and because the pressure inside the pulmonary trunk is higher than the pressure inside this eight order, what happens is to minimize the amount of partially oxygenated blood from going into the lungs, we have the blood going via this duct and into our eight order. So the majority of the blood that actually flows into the pulmonary trunk from the right ventricle goes directly into the systemic circulatory system, into the order bypassing our lungs. Now, of course, the lungs do need oxygen. They do need a tiny bit of oxygen to actually develop over time so that once that fetus is born, those lungs can function effectively and efficiently. So a tiny amount of oxygenated blood does actually pass along aropulmonary arteries and eventually reaches the capillaries of the lungs.