| A | B |
|---|
| pathogen | disease causing organism |
| B cells | immune cells that produce plasma cells, which make antibodies |
| interleukins | responsible for the symptoms of a disease |
| passive | the type of immunity when antibodies are given in the serum |
| tonsils | lymphoid organ in the pharyngeal region |
| thymus | lymphoid organ most active during youth |
| spleen | lymphoid organ that curves around the left side of the stomach |
| Peyer's patches | lymphoid organ in the small intestine |
| lymphocytes | cells that become immunocompetent |
| skin | the most important nonspecific body defense, the first line of defense |
| bone marrow | where B cells develop immunocompetence |
| antigen | a substance not normally present in the body that is capable of provoking an immune response |
| cellular | the type of immunity T cells are involved in |
| inflammatory response | the second line of defense |
| macrophages | eat bacteria, viruses, and other foreign substances in the lymph nodes |
| right lymphatic duct | drains lymph from the right uppper limb and right side of the head and thorax |
| helper T cells | cells impaired by AIDS |
| interferons | hinder the ability of a virus to multiply |
| antibodies | produced by plasma cells |
| natural killer cells | can kill cancer and virus infected cells before the immune system is activated |
| histamines | causes the symptoms of allergies, released by injured cells |
| mast cells | triggers an allergic reaction when antibodies bind to these |
| spleen | stores platelets, acts as a blood reservoir, and removes old red blood cells |
| thoracic duct | receives lymph from the majority of the body |
| memory | the type of cells that keep you from getting the chicken pox again |
| neutrophil | first phagocyte to migrate into the injured area, most numerous |
| eosinophil | increases during allergy attacks |
| baspophil | releases histamine during inflammmatory response, least numerous |
| lymphocyte | originates in the bone marrow, B or T cell |
| monocyte | increases in number during prolonged infections |
