immune system Flashcards
(13 cards)
Active immunity
Activation of the immune system and antibodies being created.
Passive immunity
Provided by antibodies that have not been produced by stimulating your immune system.
Natural immunity
Gained in the normal course of living processes.
Artificial immunity
Gained by deliberate exposure to antibodies or antigens.
Virus
Acellular, non-living particle.
Plasma cell
Secretes antibodies
T-helper cell
Activates T-killer cells.
Activates B lymphocytes.
T-killer cell
Destroys infected body cells.
T-suppressor cell
Switches of immune response.
Phagocytosis
Pathogen attaches to phagocyte by antibody.
Pathogen engulfed by infolding of the phagocyte membrane. This forms a phagosome
Lysosomes release lysins into phagosome.
Harmless products of digestion are absorbed.
Humoral immune response
Pathogen.
Phagocytosis.
Antigen presentation.
Clonal selection of T-helper cells.
Clonal expansion of T-helper cells.
Activation of B cells.
B cells become plasma cells or memory cells.
Cell mediated response
Pathogen.
Phagocytosis.
Antigen presentation.
Clonal selection of T-helper cells and T-killer cells.
Clonal expansion of T-helper cells.
Activation of T-killer cells.
T-killer cells release perforins and hydrogen peroxide to kill the cell.
Monoclonal antibodies
Identical antibodies produced from clone plasma cells.
