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barrier, superficial |
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barrier, superficial, n the chemical, mechanical, and pathogenic protections offered by the skin, mucous membranes, respiratory and excretory systems. These defenses must be breached to trigger an inflammatory response. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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