Circulatory19DiazEr

The Role Of The Circulatory System The circulatory system or in scientific terms the cardiovascular system is very important to everyone let me show you. The system is the heart blood vessels and blood which contains cells that fight disease and takes away waste. The system is made to give blood and other nutrients to the body. It also can help regulate your temperature too. The Role Of The Heart Surprisingly the heart is hollow, not solid and is the organ that pumps the blood throughout the body.The heart has two chambers the atrium which receive the blood that comes in.The lower chamber of the heart the ventricle pumps the blood out of the body. The pacemaker is cells in the right atrium that sends out signals which make the heart contract.the last part is the valve which keeps the blood from moving backward.