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Immunity

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