Structure of the human heart

Source: http://image.absoluteastronomy.com/images/encyclopediaimages/d/di/diagram_of_the_human_heart_(cropped).svg.png

The function of the heart is to pump the blood to all parts of body. The heart is made up of two pumps located side by side. The right side of the heart pumps deoxygenated blood it receives from the tissue to the lungs. Carbon dioxide is removed in the lungs. The left side of the heart pumps oxygenated blood it receives from the lungs to the rest of the body. Oxygen is removed in the tissue for respiration.