呼吸系统--组织学和胚胎学.ppt
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- 上传时间:2024-01-21
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呼吸系统--组织学和胚胎学.ppt
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,Respiratorysystem,Respiratorysystem,Nasalcavity,pharynx&larynx.Trachea&bronchi.Lung.,一、trachea,trachea(HE),Mixedgland,EM:
epitheliumoftrachea,4.SmallgranuleC,1.CiliatedC,2.BrushC,3.GobletC,5.BasalC,Thewalloftrachea,1.Mucosa=epithelium+laminapropriapseudostratiatedciliatedcolumnarCiliatedC,gobletC,brushC,basalC,smallgranularC.2.Submucosa=CT+mixedglands3.Adventitia=16-20Cshapedhaylinecartilagerings.,atmosphere&alveolialveoli&blood(blood&tissue),Gasexchange,二、lung,LungLowpower,lung,parenchyma:
bronchialtrees&alveoli.Principalbronchi(Br)lobular、segmentalBrsmallerBrbronchioleterminalbronchiolerespiratorybronchiolealveolarduct、alveolarsacalveoli.Conductionportion:
aboveterminalbronchioles.Respiratoryportion:
respiratorybronchioletoalveoli.Pulmonarylobule:
bronchioleanditsramifications.,ConductionportionlobularBr&smallBr,EpitheliumGobletCGlandsCartilageplateSMC,Conductionportionbronchiole&terminalbrochiole,Simpleciliatedcolumnar.GobletC()Gland()Cartilageplate()SMC,Rulesofstructuralvarianceinconductingportion,RespiratoryportionRespiratorybronchiole,ThewallisinterruptedSimplecuboidalEpi,claraCSMC,RespiratoryportionAlveolarduct&alveolarsac,Thewall,manyalveoliSMC*Simplecuboidal,squamous,Alveolarduct,Alveolarsac,NoSMC*,Respiratoryportionalveolus,肺泡管,SimplealveolarEpi.,
(1)Respiratoryportion,#constituents:
respiratorybronchiole,alveolarduct,alveolarsac,alveolus。
1.RespiratorybronchioleThewall,fewalveoliopeninto.SimplecuboidalEpi,SMC.,
(2)Respiratoryportion,2.Alveolarduct&alveolarsacThewall,manyalveoliopeninto.KnobsinthewallofalveolarductKnobsissphincter-likeSMC.,(3)Respiratoryportion,3.alveolus:
typeIalveolarCtypeIIalveolarCalveolarseptum.,TypeIIalveolarC,macrophage,Elasticfiber,typeIalveolarC,TypeIIalveolarC,OsmiophilicMultilamellarbodies,blood-airbarrier,Alveoli,TypeIcellsquamous,coveredmostsurfaceofthealveoli.,TypeIIcellLM:
roundorcuboidal,cellbodyprotrudeintothelumen.EM:
osmiophilicmultilamellarbody,withabundantphospholipids.Functions:
secretsurfactant,reducesurfacetension,stabilizealveoli.,Alveolarseptum:
continuousCap.,elasticfiber.macrophagedustC.blood-airbarrierincludes:
1.mucuslayeronsurfaceofalveoli2.typeIalveolarC3.BMofalveolarC4.delicatelayerofCT5.continuousCap.BM6.continuousCap.Endothelium.,Terminalbronchiole,Respiratorybronchiole,Alveolarduct,Alveolarsac,1,2,3,4,Rulesofstructuralvarianceinrespiratoryportion,Alveolarepithelialcell,TypeIcellcannotregenerate.TypeIIcellcandifferentiateintoTypeIcell.,*,keypoints,Thebasicstructureoftrachea.Histologicstructureofconductionportion.Histologicstructureofrespiratoryportion.Esp.thealveolarepithelium,Thankyou!
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- 关 键 词:
- 呼吸系统 组织学 胚胎学