| A | B |
|---|
| lymph | interstitial fluid found around cells that travels through lymph vessels |
| lymph nodes and nodules | tissue containing many lymphocytes that filters lymphatic fluid |
| spleen | organ that filters blood for pathogens and removes old RBCs |
| thymus | gland which regulates the maturation of T-lymphocytes |
| autoimmune disease | a disease in which immune cells attack the body's own healthy cells |
| allergy | a disorder in which immune cells react to harmless substances zs if they were pathogens |
| non-specific immunity | the body's physical and chemical barriers that respond in the same way to any pathogen |
| specific immunity | defensive cells and chemical reactions that an be targeted to a particular pathogen |
| acquired immunity | immunity to a pathogen which develops because of previous exposure or an innoculation |
| phagocytic cells | cells that can engulf and digest a pathogen |
| complement protein | a plasma protein that can bind to pathogens and cause cell death |
| B cells | lymphocytes that mature in bond marrow and are responsible for antibody production |
| T crells | lymphocytes that mature in the thymus and are responsible for cell-mediated immunity |
| Helper T cells | lymphocytes that are activated by a specific pathogen and which go on to activate B cells and produce cytotoxic T Cells |
| antibodies | Y shaped plasma proteins which can bind to a specific pathogen |
