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Interacting with the immune sytsem

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Brandon Zhang

on 19 April 2010

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Transcript of Interacting with the immune sytsem

Interacting with the immune system By Brandon Zhang Parts of the Immune system There are many things that make the immune system so effective They are... The First line The Second line The Third line The First line It is made up of... The skin Sweat and oil glands Saliva Tears Mucous membrane stomach acid Acts as a impenetriable barrier against pathogens The skin contains sweat glands The Second Line This line is mostly internal and play a big role

It destroys micro-organisms
through phagocytosis
(cell eatting) Macrophage Neutrophil Eats Bactria and releases
chemicals that kill it and
the bactria Natural killer cell Destroy virus infected body cells and cancer cells and release chemicals that poke holes in the infected cell’s membrane. Mast cell secretes histamine, which stimulates
blood vessels dilation and blood flow
to the damaged area.
It is important in allergic reaction Interferon a specialized protein produced
by cells infected by a virus,
interferon’s protect
other cells from being infected. The Third line
The third line of defense is made up of... Helper T Cells Detects infections and secrets
chemicals that initiate specific
responses of the T and B cell responses. Cytotoxic T cells Detects and destroys infected
body cells infected with the
specific pathogen. B Cells Specialized to recognize a
specific foreign antigen Plasma cells An activated B cell that
secrets anti-bodies Memory cell An activated t or b cell that stays in your body that destroys the specific anti-body should it enter your body again. Macrophage Displays to the antigens of the pathogen it has eaten and alerts the Helper T cells that recognizes the specific antigen which alerts the T and B cell Video
Video Video All of these internal structures help stop virus's from doing serious damage to the body
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