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1、口腔生理学术语(I)InVitro-experimentsinvivoexperimentsInVivo-experimentsalsasdistinctfrominvitroexperimentsImmunity-Thebodyresponsetoaforeignantigen,eitheringestedasfood,oraspartofaforeignorganism.Therearetajoreralresponse,astheantibodiescirculateinthebloodandthefluidbetmunesystem,the
2、familyofleucocytes.Theparticularleucocyteresponsibleforimmunespecificityisthelymphocyte.Intotalcellmassthereareasmanylymphocytesasthereareliverorbraincells.DuringdevelopmenttherearemillionsofB(fromtheBonemarrophocytesmade,eachembraneligand,specificforanyoneofmillionsofantigens
3、.Thelymphocytesarecirculatingallthetimesothattheycanhavethechancetomeetupulatesthecelltoreproducemillionsofcopiesofitself.Allthedaughtercellsareclonesoftheoriginalcell.TheseBlymphocytedaughters,migratetothesiteakinganantigenforthemembranethesecellsmakelargeamountsofsolubleanti
4、body.Theyarenoacells.Tlymphocytes(havingspenttimeintheThymus)prisesthecellmediatedresponsetoanantigen.TheyareoftphocytesarehelpersandtheyregulatetheresponseoftheBlymphocytes.ThekillerTcellsarehomuneresponseispartofalessspecificdefenseandhealingresponseofthebodyknomation.Indire
5、ctpulpcap-adressing,usuallycalciumhydroxide,placedagainstthepulpalineralise.Thecavityisclosedporaryfillingmaterialandre-openedafter6agedbeyondrepairbycariesandisinfectedbylargenumbersofcariesbacteria.Inflammation-isaagedbybacteria,chemicals,heat,traumaetc,releasehistamineandbr
6、adykininandserotonineabilityandvasodilation.Boththesefactorscontributetotheformationofafluidexudateinthedamagedtissue,gel.Thisprocesshastheeffectofage,oratleastitsloacrophages,begintheirphagocyticactivitybuttheirnumbersaresmall.Damagedtissuesalsoreleaseinterleukin,messengersar
7、roillionsofleucocytesarestored..Thesestoresnoostlyneutrophilsintotheblood.Theneutrophilsgatheratthesiteofdamagebecausetheendothelialcellsofthelocalcapillaryembraneoftheendothelialcell.Theleucocytesbegintocatchandrollalongtheendotheliumuntiltheyarebroughttoastandstill.Theincrea
8、sedpermeabilityoftheendothelialcellsalloigrateintothedamageda
