| A | B |
|---|
| acquired immunity | immunity as a result of learning to deal with specific invaders |
| acute | having a rapid onset, severe symptoms and short course |
| antibody | proteins secreted by B lymphocytes that attack infected cells |
| anaphylactic shock | severe fatal allergic reaction characterized by smooth muscle contraction and dilation of capillaries |
| antigen | cell surface markers that help the immune system identify cells |
| autoimmune disorder | a disorder in which the immune system attacks some part of the body when the body fails to recognize itself |
| basophils | cells that release histamine during an inflammatory response |
| chronic | long duratin; long-lasting |
| cytokines | chemicals released by injured body tissues that summon leukocytes & cause them to move to the area |
| eosinophil | cells that fight parasites and contribute to allergic reaction |
| histamine | chemical released during an inflammatory response |
| inflammation | tissue reaction to injury that includes swelling and redness due to increased blood flow to the area |
| immune response | series of body reactions to a pathogenic organism |
| immunization | process of increasing resistance to disease by creating memory cells to destroy a specific pathogen |
| interferon | substance released by macrophages that engulfs a virus and keeps it from entering a cell & reproducing |
| lacteals | specialized lymph vessels in the villi of small intestine that absorb digested fats and transports them to the circulatory system |
| lymph | clear & colorless fluid of the lymphatic system |
| lymph nodes | structures that produce lymphocytes and filter and destroy invading pathogens |
| lymphadenitis | inflammation of the lymph nodes |
| lymphocytes | infection-fighting WBCs |
| macrophage | a cell that removes dead organisms and foreign substances by phagocytosis later in the infection |
| neutrophil | WBC responsible for phagocytosis early in infection |
| natural immunity | immunity with which a person is born |
| adaptive immunity | another name for acquired immunity |
| innate immunity | another name for natural immunity |
