Duration Just Part of the Story. In theory a bond fund with a negative average duration should appreciate in value if interest rates rise. But fixed-income investors seeking protection from a rise in rates shouldn't consider duration alone in choosing a fund. Knowing what's in the portfolio is just as important.
Arteries form part of the circulatory system. They carry blood that is oxygenated after it has been pumped from the heart. Arteries also aid the heart in pumping blood. Arteries carry oxygenated blood away from the heart to the tissues, except for pulmonary arteries, which carry blood to the lungs for oxygenation.
Double pump. Blood carries oxygen and many other substances around your body. Oxygen from your blood reacts with sugar in your cells to make energy. The waste product of this process, carbon dioxide, is carried away from your cells in your blood. Your heart is a single organ, but it acts as a double pump.The first pump carries oxygen-poor blood to your lungs, where it unloads carbon dioxide and picks up oxygen. It then delivers oxygen-rich blood back to your heart. The second pump delivers oxygen-rich blood to every part of your body.ouble pump. Blood carries oxygen and many other substances around your body. Oxygen from your blood reacts with sugar in your cells to make energy. The waste product of this process, carbon dioxide, is carried away from your cells in your blood. Your heart is a single organ, but it acts as a double pump.