| A | B |
|---|
| pericardium | sac around the heart |
| venules | baby veins |
| arterioles | baby arteries |
| superior vena cava | largest vein above the heart |
| inferior vena cava | largest vein below the heart |
| atria | upper 2 chambers of the heart |
| ventricles | lower 2 chambers of the heart |
| coronary circulation | movement of blood through the heart tissue |
| pulmonary circulation | movement of blood between the heart and lungs |
| systemic circulation | movement of blood between the heart and body |
| hemoglobin | oxygen carrying protein |
| plasma | liquid part of blood |
