| A | B |
| heart, blood, blood vessels | parts of the cardiovascular system |
| arteries | carry blood with oxygen to the body cells |
| veins | carry blood with carbon dioxide back to the heart |
| pulmanory circulation | movement of blood from the heart to the lungs back to the heart |
| systemic circulation | circulation of blood from heart to every cell in the body |
| atria | upper chambers of the heart |
| ventricles | lower chambers of the heart |
| aorta | largest artery in the body |
| pulmanory artery | artery carrying blood with carbon dioxide from the heart to the lungs |
| pulmanory vein | vein carrying blood with oxygen from the lungs to the heart |