In addition, a 17 monitor uses another 80 watts. That comes to 150 watts in an hour, or .15 kWh. If you have the same computer on for only 4 minutes (say, to check your e-mail), that would come to .01 kWh.
A Dr. Mehmet Oz, MD , Cardiology (Cardiovascular Disease), answered. The heart gets its own supply of blood from the coronary arteries. The two main coronary arteries (right and left) and their branches supply blood throughout the heart muscle. This animation explains how these arteries transport blood.
A complex system of veins and arteries keep the heart supplied with blood and allow the blood to circulate through the body. Coronary arteries supply the heart with oxygenated blood. The right coronary artery starts from the right aortic sinus and travels through the coronary sulcus located between the right atrium and ventricle. It has four branches: