Immunology Flashcards
immune system
collection of cells, tissues, and molecules that mediate resistance to infections, remove dead/damaged cells, and recognize and remove abnormal/mutated self cells
prevent infection by stimulating immune response
innate immune response
body’s watch dog
mediates initial protection
phagocytosis and inflammation
physical - skin
chemical - mucous and stomach acid
cells - complement cascade, NK cells, phagocytes, dendritic cells
opsonization
process of promoting phagocytosis
opsonin
agent promoting phagocytosis
adaptive/acquired immune system
develops slowly
more effective defense against infection
cellular/-mediated immunity
humoral immunity
cellular/-mediated immunity
defending the body against intracellular pathogens
humoral immunity
B-lymphocytes differentiate into plasma cells that secrete antibodies/immunoglobulins defending the body against extracellular pathogens