What documents do I need to present to reenter the United States? If seeking to enter the United States after temporary travel abroad, you will need to present a valid, unexpired âgreen cardâ (Form I-551, Permanent Resident Card).
Brain Tour. 2. Supply lines. Your brain is nourished by one of your body's richest networks of blood vessels. With each heartbeat, arteries carry about 20 to 25 percent of your blood to your brain, where billions of cells use about 20 percent of the oxygen and fuel your blood carries. When you are thinking hard, your brain may use up to 50 percent of the fuel and oxygen.
Report Abuse. Arteries transport blood to the body, and Veins transport blood to the heart. Blood goes through the Left and Right Atrium's of the heart, into the pulmonary arteries, back into the right and left ventricles, and into the body.The process is continuously repeated.eins go into the right side of the heart, to send de-oxygenated blood to the lungs. Arteries come out of the left side of the heart to pump oxygenated blood around the body.