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| [[Image:LH Macrophage Histology.jpg|thumb|right|125px|<p>'''Macrophage'''</p><sup>© Nottingham Uni</sup>]] | | [[Image:LH Macrophage Histology.jpg|thumb|right|125px|<p>'''Macrophage'''</p><sup>© Nottingham Uni</sup>]] |
− | * If pathogens breach the barriers formed by the skin and mucus membranes, they must be detected and destroyed by cellular and humoral means
| + | Pathogens can invade the body if a breach occurs in the barriers formed by the skin and mucus membranes, for example a wound, they must be detected and destroyed by cellular and humoral means.<br /> |
− | * The cells involved with innate protection are:
| + | <br /> |
− | ** Blood granulocytes, or Polymorphonuclear Cells | + | The cells involved in the cellular response to a wound are: |
− | *** Notable for their multi-lobed nuclei
| + | * Tissue mast cells and '''[[Macrtophages|macrophages]]''' that initially phagocytose and detect bacteria<br /> |
− | *** '''Neutrophils''': phagocytose bacteria | + | <br /> |
− | *** '''Eosinophils''': kill parasites by the release of granules | + | * The Blood granulocytes, or Polymorphonuclear (multi-lobed nuclei) Cells |
− | *** '''Basophils/ mast cells''': kill parasites by the release of granules
| + | ** The '''[[Neutrophils|Neutrophils]]''' are the most abundant as they are the primary cells that phagocytose bacteria, and the larger fungi |
− | ** Blood '''[[Monocytes|monocytes]]''': phagocytose bacteria
| + | ** The '''[[Eosinophils|Eosinophils]]''' and '''[[Basophils|Basophils/ mast cells]]''' are only needed in rare circumstances as they are for killing parasites by the release of granules (exocytosis). |
− | ** Tissue mast cells and '''macrophages''': phagocytose bacteria
| + | <br /> |
− | *Effectively, innate cellular response seeks to hold off the infection until the [[Adaptive Immune System|adaptive response]] can back it up with a more specific attack
| + | <br /> |
| + | * Blood '''[[Monocytes|monocytes]]''': phagocytose bacteria |
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| + | <br /> |
| + | The main role of the innate cellular response is to delay systemic infection until the [[Adaptive Immune System|adaptive response]] can back it up with a more specific attack |
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| ==[[Macrophages|Macrophages]]== | | ==[[Macrophages|Macrophages]]== |