| A | B |
| plasma | liquid part of the blood |
| erythrocytes | red blood cells |
| hemoglobin | protein that oxygen attaches to in the dent |
| leukocytes | white blood cells |
| thrombocytes | platelets that clot the blood |
| coagulation | process of clotting of blood |
| hemostasis | process of blood loss stopping |
| arteries | carry blood away from the heart |
| veins | carry blood to the heart |
| arterioles | smallest arteries |
| venules | smallest veins |
| capillary bed | network of tiny blood vessels in tissue |
| lymph | excess fluid absorbed by lymph system |
| lymph node | tissue that "cleans" the lymph of bacteria |
| endocardium | smooth inner layer of the heart |
| myocardium | middle layer of the heart made of muscle |
| epicardium | smooth outermost layer of the heart |
| pericardium | protective sac surrounding the heart |
| atria | upper two chambers of the heart |
| ventricles | lower two chambers of the heart |
| ischemia | lack of oxygen to the tissues |
| circulation | continuous movement of the blood |
| pulmonary circulation | movement of blood from the heart through the lungs |
| systemic circulation | movement of oxygenated blood through the body |
| systole | active phase of heart contraction |
| diastole | resting phase of the heart contraction |
| cardiac cycle | entire sequence of the heart's contraction |
| anemia | disorders affecting the red blood cells |
| leukemia | excessive production of white blood cells |
| thrombi | blood clots |
| embolus | blood clot that moves from place to place |
| artherosclerosis | blocking of the arteries from plaque |
| peripheral vascular disease | atherosclerosis that affects the legs |
| varicose veins | pooling of the blood in surface veins |
| phlebitis | inflammation of the vein causing hot skin |
| thrombophlebitis | inflammation of the lining of the vein by blood clots |
| DVT | deep venous thrombosis |
| Pulmonary embolism | blood clot in the pulmonary artery |
| venous ulcers | swelling and sores from plasma in the tissues |
| coronary artery disease | narrowing of arteries that supply the heart |
| angina pectoris | chest pain when the heart muscle lacks oxygen |
| myocardial infarcation | "heart attack" when heart tissue dies |
| heart failure | when the heart is unable to pump enough blood |