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WhyIsPneumoniaSoDangerous?
EveGausandVanessaRuiz
Everytimeyoubreathein,airtravelsdownthetrachea,throughaseriesofchannelscalledbronchi,andfinallyreacheslittleclustersofairsacscalledalveoli.Therearesomemillionalveoliinthelungs,addinguptoasurfaceareaofroughly75squaremeters–thesizeofatenniscourt.Thesetinysacs,onlyonecellthick,facilitateacrucialexchange:allowingoxygenfromtheairwebreatheintothebloodstreamandclearingoutcarbondioxide.Pneumoniawreakshavoconthisexchange.Pneumoniaisaninfectionofthealveolithatcausesthemtofillwithfluid.
Therearemanydifferentkindsofpathogensthatcancausepneumonia.Themost
