| A | B |
| formed elements | erythrocytes, leukocytes, thrombocytes |
| white blood cells (WBC's) | leukocytes |
| red blood cells (RBC's) | erythrocytes |
| platelets | thrombocytes |
| liquid portion of blood | plasma |
| protein found on RBC's of Type A blood | antigen A |
| found in plasma of Type A blood | antibody B |
| found in plasma of Type B blood | antibody A |
| found in plasma of Type O blood | antibody A and antibody B |
| found in plasma of Type AB blood | no antibodies to A or B |
| protein found on RBC's of Type B blood | antigen B |
| found on RBC's of Type AB blood | antigen A and antigen B |
| found on RBC's of Type O blood | neither antigen A nor antigen B |
| the universal donor | Type O blood |
| the universal recipient | Type AB blood |
| Blood that is lacking the Rh factor on RBC's | Rh negative blood |
| Blood containing Rh factor on RBC's | Rh positive blood |
| allow blood to clot | platelets |
| plasma proteins | albumins, globulins, fibrinogen |
| serum | plasma minus its clotting factors (fibrinogen) |
| myeloid tissue (red bone marrow) | forms RBC's and some leukocytes |
| lymphatic tissue (lymph nodes, thymus, spleen) | forms leukocytes known as lymphocytes and monocytes |
| anemia | inability of blood to carry sufficient oxygen |
| iron deficiency anemia | anemia caused by lack of iron, necessary for hemoglobin |
| hemoglobin | red-pigmented molecule in RBC's that binds to oxygen |
| pernicious anemia | anemia caused by lack of vitamin B12 (needed for hemopoiesis) |
| polycythemia | too many RBC's - makes blood too thick to flow |
| hematocrit | lab test that indicates volume of RBC's in a blood sample |
| these defend body from microorganisms | white blood cells |
| leukemia | cancer that causes production of too many WBC's |
| leukopenia | low WBC count due to disease such as AIDS |
| leukocytosis | high WBC - accompanies infections and leukemia |
| thrombus | blood clot that remains where it is formed |
| embolus | blood clot that breaks free and moves through blood vessels |
| embolism | medical emergency induced by an embolus |
| composition of plasma | water and solutes such as salt, glucose, wastes, gases, hormones, proteins |
| approximate volume of blood in adult human | 4-6 liters |
| functions of the blood | transport of oxygen, nutrients, waste, and protection against foreign substances |