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學(xué)習(xí)快評丨qibao666888　　第??(di)一??(yi)道??(dao)防??(fang)御??(yu)是??(shi)物?(wu)理?(li)屏??(ping)障??(zhang)??，比??(bi)如??(ru)皮??(pi)膚??(fu)和??(he)黏??(nian)膜?(mo)??，像??(xiang)城??(cheng)墻??(qiang)一??(yi)樣??(yang)覆?(fu)蓋??(gai)體??(ti)表??(biao)??，通??(tong)過?(guo)汗??(han)液??(ye)、皮?(pi)脂??(zhi)和??(he)黏??(nian)液?(ye)中??(zhong)的??(de)抗??(kang)菌??(jun)成??(cheng)分??(fen)??，直??(zhi)接??(jie)阻??(zu)擋??(dang)細(xì)??(xi)菌??(jun)、病??(bing)毒??(du)入??(ru)侵??(qin)；比??(bi)如??(ru)呼??(hu)吸??(xi)道??(dao)纖??(xian)毛??(mao)??，如??(ru)同??(tong)護(hù)??(hu)城??(cheng)河??(he)的?(de)“清??(qing)道??(dao)夫??(fu)”??，通??(tong)過??(guo)擺?(bai)動??(dong)??，將??(jiang)灰??(hui)塵?(chen)和??(he)病??(bing)原??(yuan)體??(ti)排??(pai)出??(chu)體??(ti)外??(wai)??。??　　首??(shou)先??(xian)要?(yao)識??(shi)別??(bie)“自??(zi)我??(wo)”與??(yu)“非??(fei)我??(wo)”??。??通??(tong)過??(guo)細(xì)??(xi)胞??(bao)表??(biao)面??(mian)的??(de)特??(te)殊??(shu)蛋?(dan)白??(bai)(如??(ru)MHC分??(fen)子?(zi))區(qū)??(qu)分??(fen)自??(zi)身??(shen)細(xì)??(xi)胞??(bao)和??(he)外??(wai)來??(lai)病??(bing)原??(yuan)體??(ti)??。一??(yi)旦??(dan)誤??(wu)判??(pan)??，可??(ke)能??(neng)攻??(gong)擊??(ji)自?(zi)身??(shen)組??(zu)織??(zhi)??，導(dǎo)??(dao)致??(zhi)類??(lei)風(fēng)??(feng)濕??(shi)關(guān)??(guan)節(jié)??(jie)炎??(yan)、1型??(xing)糖??(tang)尿??(niao)病??(bing)等??(deng)疾??(ji)病??(bing)??。。