| A | B |
|---|
| lungs | organ that oxygenates blood |
| arteries | take oxygenated blood away from the heart |
| veins | bring deoxygenated blood back to the heart |
| capillaries | exchange oxygen and carbon dioxide between red blood cells and body cells |
| right atrium | receives deoxygenated blood from the vena cava |
| left atrium | receives oxygenated blood from the pulmonary veins |
| right ventricle | pumps deoxygenated blood to pulmonary veins |
| left ventricle | pumps oxygenated blood to the aorta |
| septum | separates the two sides of the heart |
| vena cava | receives deoxygenated blood from the upper body |
| aorta | receives oxygenated blood from the left ventricle. This is the artery where oxygenated blood leaves the heart |
| pulmonary veins | take deoxygenated blood back to the heart |
| mitral valve | valve that controls oxygenated blood going into the left ventricle |
| tricuspid valve | controls blood going into the right ventricle |
| pulmonary valve | controls blood going into the pulmonary arteries from the right artium |
| aortic valve | controls blood going into the aorta from the left ventricle |
