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.
systemic circulation. -oxygenated blood travels from heart throughout body, deoxygenating as it goes-all systemic arteries branch from aorta-all systemic veins empty into superior and inferior vena cava, or the coronary sinus-deoxygenated blood returns to heart.