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时间:2020-04-02
《白细胞和免疫系统.ppt》由会员上传分享,免费在线阅读,更多相关内容在PPT专区-天天文库。
1、Blood,LymphandImmuneSystemsChapter10Bloodhem/oandhemat/oplasma-55%formedelements-45%serum-plasmawithoutclottingproteinsBloodCellsRBC-erythrocytes-erythropoiesisWBC-leukocytes-leukopoiesisPlatelets-thrombocytes-thrombopoiesisErythrocyteserythr/o-redcyte-cellHemoglobin-bloodproteintran
2、sportsoxygenReticulocyte-immatureerythrocyteRBCsproducedbyredbonemarrowLeukocytesleuk/o-whiteProtectthebodyagainstinvasionPassthroughcapillarywallsGranulocytesneutrophils(phagocytosis)eosinophils(allergies)basophils(promoteinflammation)Agranulocyteslymphocytes(productionofcirculating
3、antibodies)monocytes(macrophages)Collectionofdeadandlivingbacteriaandleukocytescalledpus,abscess.ThrombocytessmallestformedelementmadeinbonemarrowessentialtobloodcoagulationIfinjury,bloodcomesincontactwithanytissueotherthantheliningofthevessels,plateletssticktogether,formplug,sealswo
4、und.Chemicalsreleased,seriesofreactions,formationofclot.Plasmaplasma92%water8%plasmaproteinsalbuminglobulinfibrinogenserum-plasmawithoutclottingproteinsorfibrinogenFunctionsoftheImmuneSystemToprotecttheentirebodyfromavarietyofharmfulsubstancespathogenicmicroorganismsallergenstoxinsma
5、lignantcellsStructuresoftheImmuneSystemUnlikeotherbodysystems,ImmuneSystemisNOTcontainedwithinasinglesetoforgansorvesselsActiondependsonstructuresfromlymphatic,cardiovascular,andIntegumentarysystemsWorksprimarilythroughantigen-antibodyreactionLymphaticSystemMajorstructureslymphvessel
6、slymphnodeslymphfluidtonsilsAlsospleenthymusFunctionsoftheLymphSystemlymph/odrainfluidfromtissuespacesandreturntoittothebloodtransportmaterials(nutrients,hormonesandoxygen)tobodycellscarryawaywasteproductstothebloodtransportlipidsawayfromdigestivesystemcontrolofinfectionLymphSystemLy
7、mphoriginatesinbloodplasmaInterstitialfluidcleansandnourishesbodytissuescollectscellulardebris,bacteriareturntobloodorlymphcapillariesLymphNodeslocatedinlymphvesselssmallroundorovalstructures(filters)depositoriesforcellulardebrisbacteriaanddebrisphagocytizedLymphNodesinsidearemasseso
8、ftissuewhich
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