| A | B |
|---|
| antibody | A protein produced in response to, and interacting specifically with, an antigen |
| antigen | A substance that induces the formation of antibodies |
| erythrocyte | A red blood cell |
| formed elements | The cellular components of blood |
| hemoglobin | The iron-containing pigment in red blood cells that transports oxygen |
| leukocyte | A white blood cell |
| phagocytosis | The engulfing of foreign material by white blood cells |
| plasma | The liquid portion of the blood |
| platelet | A formed element of the blood that is active in hemostasis; a thrombocyte |
| thrombocyte | A blood platelet |
| anemia | A decrease in the number or size of red blood cells or int the amount of hemoglobin in the blood. May result from blood loss, malnutrition, a hereditary defect, environmental factors, and other causes. |
| hemophilia | A hereditary blood disease caused by lack of a clotting factor and resulting in abnormal bleeding |
| leukemia | Malignant overgrowth of immature white blood cells. May be chronic or acute; may affect bone marrow (myelogenous leukemia( or lymphoid tissue (lymphocytic leukemia) |
| sickle cell anemia | A hereditary anemia caused by the presence of abnormal hemoglobin, Red blood cells become sickle-shaped and interfere with normal blood flow to the tissues. Most common in Mediterranean and African populations. |
| agglutination | The clumping of cells or particles in the presence of specific antibodies |
| hematoma | A localized collecton of blood, usually clotted, caused by a break in a blood vessel |
