1 To find what your carâs fuel economy is (Metric System), multiply the amount of fuel used by 100 and divide that by the total kilometres driven. 2  Example: 42 litres x 100 / 400 = 10.5 litres / 100km.
There are four chambers of the heart: a right atrium, a right ventricle, a left atrium and a left ventricle. First, deoxygenated blood (blood without oxygen) is carried from the body through the Inferior and Superior Vena Cava. From these vessels, the blood is dumped into the Right Atrium of the heart.
The right atrium receives deoxygenated blood from the veins of the body, the left atrium oxygenated blood from the pulmonary vein. âThe left atrium of the heart receives oxygenated (oxygen-rich) blood from the lungs and then empties into the left ventricle through the mitral valve.â.