All __________ carry oxygenated blood except the pulmonary artery which carry deoxygenated blood to the lungs.
arteries carry oxygenated blood and veins carry dexygenated blood but when blood is transported through the body the pulmonary artery carries deoxygenated blood to the lungs and the pulmonary vein carries oxygenated blood from the auricle to the left ventricle. why does this hapen?