How Lungs Work | Respiratory system

HomeLungHealth&DiseasesHowLungsWorkHowLungsWorkTheRespiratorySystemFacebookTwitterLinkedInEmailPrintSectionMenuLungHealth&DiseasesLungDiseaseLookupLungHealth&WellnessHowLungsWorkLungCapacityandAgingWarningSignsofLungDiseaseLungProcedures,Tests&TreatmentsYourlungsarepartoftherespiratorysystem,agroupoforgansandtissuesthatworktogethertohelpyoubreathe.Therespiratorysystem'smainjobistomovefreshairintoyourbodywhileremovingwastegases.Whyarelungsimportant?Everycellinyourbodyneedsoxygeninordertolive.Theairwebreathecontainsoxygenandothergases.Onceinthelungs,oxygenismovedintothebloodstreamandcarriedthroughyourbody.Ateachcellinyourbody,oxygenisexchangedforawastegascalledcarbondioxide.Yourbloodstreamthencarriesthiswastegasbacktothelungswhereitisremovedfromthebloodstreamandthenexhaled.Yourlungsandrespiratorysystemautomaticallyperformthisvitalprocess,calledgasexchange.Inadditiontogasexchange,yourrespiratorysystemperformsotherrolesimportanttobreathing.Theseinclude:Bringingairtotheproperbodytemperatureandmoisturizingittotherighthumiditylevel.Protectingyourbodyfromharmfulsubstances.Thisisdonebycoughing,sneezing,filteringorswallowingthem.Supportingyoursenseofsmell.ThePartsoftheRespiratorySystemandHowTheyWorkAirwaysSINUSESarehollowspacesinthebonesofyourheadaboveandbelowyoureyesthatareconnectedtoyournosebysmallopenings.Sinuseshelpregulatethetemperatureandhumidityofinhaledair.TheNOSEisthepreferredentranceforoutsideairintotherespiratorysystem.Thehairsliningthenose'swallarepartoftheair-cleaningsystem.AiralsoentersthroughtheMOUTH,especiallyforthosewhohaveamouth-breathinghabit,whosenasalpassagesmaybetemporarilyblockedbyacold,orduringheavyexercise.TheTHROATcollectsincomingairfromyournoseandmouththenpassesitdowntothewindpipe(trachea).TheWINDPIPE(trachea)isthepassageleadingfromyourthroattoyourlungs.ThewindpipedividesintothetwomainBRONCHIALTUBES,oneforeachlung,whichdividesagainintoeachlobeofyourlungs.These,inturn,splitfurtherintobronchioles.LungsandBloodVesselsYourrightlungisdividedintothreeLOBE

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