| A | B |
| capillaries | the smallest blood vessels |
| veins | Vessels that carry blood back to the heart from the lungs or body |
| pulse | expanding and contracting of arteries |
| hypertension | a disorder that is linked to atherosclerosis |
| veins | blood vessels that have one-way valves |
| ventricle | pumps blood to the lungs or body |
| atrium | receives blood from the body or lungs |
| valves | assist a one-way flow of blood in the heart |
| scar tissue | forms when heart cells die for lack of oxygen |
| atherosclerosis | buildup of fatty deposits in arteries |
| arteries | vessels carrying blood away from heart |
| hypertension | can be caused by atherosclerosis |