| A | B |
|---|
| Blood | Tissue (fluid) that transports oxygen, nutrients, hormones, and wastes around the body |
| Plasma | Fluid portion of blood that carries cells and dissolved substances |
| Erythrocyte | Red blood cell; carries oxygen |
| Hemoglobin | Protein in red blood cells that attracts and binds (holds) oxygen; contains iron |
| Leukocyte | white blood cell; fights infection and disease |
| Phagocytic cells | Cells that engulf and destroy pathogens; neutrophil, eosinophil, monocyte |
| Non-Phagocytic cells | Leukocytes that do not engulf and destroy microorganisms; basophil, lymphocyte |
| Thrombocyte (Platelet) | Cell type that promotes blood clotting (coagulation) by forming a plug and releasing signals |
| Hemostasis | Process of stopping or controlling bleeding |
| Hematopoiesis | Formation of blood cells that occurs in bone marrow |
| Hemolysis | Breakdown of blood cells |
| Coagulation | Process of blood clot formation |
| Fibrin | Protein that stabilizes blood clots |
| Antigen | Substance on a cell's surface that triggers an immune response |
| Antibody | Immune protein that recognizes and targets foreign antigens |
| Agglutination | Clumping of blood cells |
| ABO Blood System | Classification based on A and B antigens found on the surface of red blood cells |
| Rh Factor | Antigen determining positive or negative blood type |
| Universal Donor | O negative blood type |
| Universal Recipient | AB positive blood type |
| Granulocyte | Leukocytes with granules in the cytoplasm; neutrophils, eosinophils, basophils |
| Mononuclear Cells (Agranulocytes) | Leukocytes with a single, large nucleus and no visible granules in the cytoplasm; monocytes, lymphocytes |
