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Pathogens.
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Pathogens are the invalers which in turn evoke an immune response in the host.
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So this pathogen can include viruses or bacteria or any other pungay which can destroy the normal functioning of the human host.
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So these viruses as soon as they enter a human body, they tend to infect certain number of cells.
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So there are certain cells which are said to be phagocytes.
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These phagocytes tend to help enculved these viruses as soon as they are engulfed, this intern will give rise to the formation of one particular component that is called as the phagosome.
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So this phagosome in turn will join with another structure found within the cell that is referred to be as the lysosome.
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And this in turn will generate a particular formation state that is called as phagolisosomal which in turn can be done as pls.
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As soon as the sphagoland is complex is in turn formed, this intern will destroy the antigen, that is the viruses, into smaller pieces.
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As soon as it has been broken down into smaller pieces, this intern will be taken up onto the surface of that particular cell and it will be presented in certain sets of protein molecules, which are referred to be as mhc molecule.
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Here mhc intern stands for major list to compatibility complex.
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So this this intern will be recognized by t cells that are found in the human body.
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So the t cells intern have four different types of function...