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.
The one-way system carries blood to all parts of your body. This process of blood flow within your body is called circulation. Arteries carry oxygen-rich blood away from your heart, and veins carry oxygen-poor blood back to your heart.In pulmonary circulation, though, the roles are switched.he one-way system carries blood to all parts of your body. This process of blood flow within your body is called circulation. Arteries carry oxygen-rich blood away from your heart, and veins carry oxygen-poor blood back to your heart.