| A | B |
|---|
| heart | muscle that pumps blood |
| atrium | small top chamber |
| ventricle | large bottom chamber |
| blood | delivers needed materials-oxygen,water and food |
| blood vessels | series of tubes |
| closed circulatory system | blood stays in vessels |
| open circulatory system | blood is not in vessels |
| artery | blood vessel that carries blood away from heart |
| vein | blood vessel that carries blood back to heart |
| tricuspid valve | between right atrium and right ventricle |
| bicuspid valve | between left atrium and left ventricle |
| semilunar valves | between the ventricles and their arteries |
| lup-dup | sounds of the heart |
| lup | colosing of bicuspid and tricuspid valve |
| dup | closing of semilunar valves |
| swish | blood leaking through valves |
| right side of heart | pumps blood to your lungs |
| left side of heart | pumps blood to all parts of the body |
| vena cava | largest vein |
| pulmonary artery | carries blood away from heart |
| pulmonary vein | blood returns from lungs to these |
| capillary | smallest kind of blood vessel |
| hypertension | high blood pressure |
| heart attack | coronary vessels become clogged |
| preventing a heart attack | exercise, proper diet and not smoking |
