| A | B |
|---|
| left ventricle | pumps blood to the entire body |
| right ventricle | pumps blood to the lungs |
| inferior vena cava | returns blood to the heart from the lower body |
| superior vena cava | returns blood to the heart from the upper body |
| "parachute valves" | right and left atrio-venricular valves |
| "pocket valves" | pulmonayr and aortic valves |
| right atrium | recieves blood from the body, pushes it to right ventricle |
| aorta | carries blood away from the heart to the body |
| pulmonary arteries | carry blood to lungs |
| pulmonary veins | carry blood from lungs to heart |
| left atrium | pushes blood to left ventricle |
| right and left atrio-ventricular valves | keep blood from returning to atrial chambers |
| aortic and pulmonary valves | keep blood from returning to right and left ventricles |
| coronary arteries | carry sugar and oxygen to heart muscle |
| lungs | where blood gets oxygen and loses carbon dioxide |
