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[[Image:Routeofairthroughrespiratorysystem.jpg|right|thumb|350px|'''Schematic Diagram showing the route air takes through the respiratory system''']]
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[[Image:Routeofairthroughrespiratorysystem.jpg|right|thumb|250px|'''Schematic Diagram showing the route air takes through the respiratory system''']]
    
==Introduction==
 
==Introduction==
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