Dana De Guzman Pd 3 immune system
Major functions of the lymphatic and immune system
Location of lymphatic organs and their functions
Purpose and examples of first, second and third line of defense
Innate (natural) immune defenses and adaptive (aquired) immune defenses
Humoral response and cellular response
Antigens and antibodies
Artificial vs. naturally acquired immunity
passive vs. active immunity
Cells invovled in the immune system and their functions
Disorders associated with the immune system
Naturally immunity: obtained through antigen exposure; an immune response occurs in the person, in which antibodies and memory B cells are produced; this is long-lasting immunity
Passive immunity: obtained by receiving antibodies; since there is no antigen contact and no immune response occurs, no memory B cells are produced; this is short-term immunity
Artificially acquired active immunity:involves vaccine of the weakened pathogen. this forces B cells to remember the pathogen. this is long-term
Naturally acquired active immunity: occurs after exposure to the antigen; long-term resistance, results, due to the events of a primary immune response (memory B cells are produced)
Naturally acquired passive immunity: occurs as antibodies are passed from mother to fetus; this is short-term immunity, due to lack of an immune response and lack of memory B cell formation
Artificially acquired passive immunity: involves the injection of gamma globulins containing antibodies or antiserum; this is short-term, because there was no antigen exposure, no immune response, and no memory cells produced
First line: skin and mucous
Second line: chemical barriers (pH, enzymes, salf, infernos, complement), natural killer cells, inflammation, phagocytosis, fever
Third line: Cellular immune response, humoral immune response
Humoral response:
antibodies travel through the body fluids to attack and destroy antigens
Antigen:
triggers "non-self" molecules, which are usually large and complex foreign molecules