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Howdoestherespiratorysystemwork? Thistextwillexplainhowtherespiratorysystemworks.Itwillexplain themainpartsofthesystemandtellyouhowtotakecareofit.Itwill alsoexplainhowitisconnectedtoourotherbodysystems. Weneedtherespiratorysystemsothatwecanhaveoxygeninour bodies.Ourbodiescannotstoreoxygenbuttheycanstorenutrients. Thefirststageinthesystemiswhenyouinhaleoxygenthroughyour mouthornose. Thentheoxygentravelsdownthetrachea(windpipe)tothelungsand thentosmallerpassagescalledbronchialtubes. Next,theoxygengoestothealveoliandthentravelstothecapillaries. Fromthecapillaries,theoxygenentersthebloodstreamandis transportedalloverthebodyinourbloodcells. Aftertheoxygengetsuseduparoundourbody,itbecomescarbon dioxideandyouexhaleit.Whenyouexhalethecarbondioxide(awaste product),leavesyourbody. Therespiratorysystemisconnectedtothecirculatorysystembecause whenyoubreatheyourheartbeatsandtheoxygentravelsaroundthe bodyinthebloodcells.Itisalsoconnectedtothenervoussystem becausethebrainispartofthenervoussystemandthebraintellsus whattodo.Thebraintellsyoutobreathe. Therightwaytotakecareofourrespiratorysystemistoexercise.Also youshouldnotsmokebecauseitdamagesthecilia,whicharelittlehairs inyourbronchialtubes.Ifyoudonotlookafterit,youcangetadisease likelungcancerandemphysema.