circulatoryics19OlivSh

The heart is like the center of your body. It starts by pumping blood to your lungs and then back. Then its pumps blood to the rest of your body and back. Arteries carry blood away from your heart. The blood then goes through tiny vessels called capillaries. From there, veins carry the blood back to your heart and the process starts all over again.

The cardiovascular system is important because of many reasons. One is because it delivers needed substances to cells and takes away waste or other unneeded stuff away from our cells. Two is because our blood has cells that can fight off diseases. Also blood transports things like glucose and oxygen to your cells. Blood in your veins carry away carbon dioxide. This is all very important or else we wouldn't even be living.