After blood becomes oxygenated, after blood becomes oxygenated, it does not return to the heart, but goes directly to capillaries that supply the body's cells with oxygen. it returns to the heart, and is then pumped to body cells. it returns to the heart, and is then pumped to the lungs. it does not return to the heart, but goes to the nose and mouth. it does not return to the heart, but goes directly to the lungs.