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AICE Biology

Immunity

TermDefinition
phagocytes scavengers, remove dead cells and invasive microorganisms
neutrophils travel throughout body, squeezes through the walls of capillaries to patrol the tissues, short lived cells but come in large numbers during infection.
macrophages larger than neutrophils and found in organs.
monocytes marcrophages in blood.
lymphocytes size smaller than phagocytes, large nucleus fills most of the cells
B- lymphocytes in bone marrow till mature, spread throughout body, concentrating in lymph nodes and spleen
T- lymphocytes collects in thymus
primary response slow because very B cells specific to antigen
secondary response faster because memory cells, more antibodies
antibodies globular glycoprotein and form plasma proteins (immunoglobulins)
antitoxins block the toxins released by bacteria
vaccine a preparation containing antigens which is used to stimulate an immune response artificially.
passive immunity people did not produce the anitbodies
natural active immunity activation occurs naturally during an infection
Created by: jcore