The Circulatory System

The circulatory system is about the circulation of the blood through the network of blood vessels. The circulatory system includes the heart and the blood vessels. There are three different blood vessels in your body and they are arteries, veins and capillaries. Capillaries are very fragile so they can be destroyed easily. When you get a small scratch and you bleed a bit you are destroying around 50 of your capillaries (which doesn't matter). Destroying an artery or a vein is really rare. You can't destroy them when you get a small scratch and you don't destroy them even when you get a deep cut as well. Arteries carry oxygen to ever cell in your body and the veins carry blood back to the heart to get more oxygen. The heart is the most important part in the circulatory system because if the heart stops to pump blood you will die. Your heart keeps on pumping blood and pumping blood till you are dead. So move ahead and read everything about the circulatory system which promises to be an very interesting system!