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The immune system is one among the many organ systems of the human body.
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The immune system is mainly categorized to provide immunity against foreign pathogens by the human body.
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Immunity is provided by the blood cells or mostly we called it as immune cells since they are present in the blood.
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They are called as blood cells.
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The wbcs or the white blood cells provide immune cells.
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These white blood cells is of many types.
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They may be macrophages, monocytes and they can be lymphocytes.
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Lymphocytes are classified into t cells and b cells.
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Among the cells, b cells is capable of producing an antibody which can be written as a b.
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The other cells are helping in the cell mediated response or c.
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Cmi.
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The b cells provide antibody mediated immune response.
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So what is the foreign body? foreign body is called by the term antigen...