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Ductus venosus - It is a small blood vessel that redirects a portion.pdf
- 1. Ductus venosus - It is a small blood vessel that redirects a portion of oxygenated blood from the left umbilical vein directly to the inferior venacava. It is necessary because, ductus venosus creates a passage way to allow the oxygenated and nutrient rich blood to bypass the liver; as the liver is premature, it does not need whole of the oxygenated blood flowing through the umbilical vein. Ductus arteriosus : It is a blood vessel that redirects blood from the pulmonary artery directly to the aorta. It is necessary because, ductus arteriosus, bypasses the boold from right ventricle, directly to the aorta by preventing it to flow to the non functioning lungs which are filled with fluid. Solution Ductus venosus - It is a small blood vessel that redirects a portion of oxygenated blood from the left umbilical vein directly to the inferior venacava. It is necessary because, ductus venosus creates a passage way to allow the oxygenated and nutrient rich blood to bypass the liver; as the liver is premature, it does not need whole of the oxygenated blood flowing through the umbilical vein. Ductus arteriosus : It is a blood vessel that redirects blood from the pulmonary artery directly to the aorta. It is necessary because, ductus arteriosus, bypasses the boold from right ventricle, directly to the aorta by preventing it to flow to the non functioning lungs which are filled with fluid.