眼-英-组织学和胚胎学

Theeye

Layersoftheeyecorneoscleralcoat:fibrouslayer,includethesclera,thewhiteportion,andthecornea,thetransparentportion.vascularcoat:includethechoroid,thestromaoftheciliarybodyandiris.retina:theinnerlayer,includeanouterpigmentepi.Theinnerneuralretina,andtheepi.Oftheciliarybodyandiris.eyeballpupillensirisCiliarybodyOpticnervemaculacorneascleraretinachoroidcorneaCornealepi.:nonkeratinizedstratifiedsquamousepi.,5-6layersofcells.Bowman’smembrane：anteriorbasementmembrane,ahomogeneous-appearinglayeronwhichthecornealepi.rests.Cornealstroma:composedofthinlamellaeeachlamellaconsistsofparallelbundlesofcollagenfibrils.Nobloodorlymphaticvessels.descemet’smembrane：posteriorbasementmembrane,isthebasallaminaofcornealendothelialcells.Separatesthecornealendotheliumfromtheadjacentcornealstroma.Cornealendothelium：asinglelayerofsquamouscellscoveringthesurfaceofthecorneathatfacestheanteriorchamber.Providesformetabolicexchangebetweenthecorneaandaqueoushumor.CormealepitheliumAnteriorbasementmembraneCornealstromaPosteriorbasementmembraneCornealendotheliumscleraIsanopaquelayerthatconsistspredominantlyofdenseCT.Thecorneoscleral

limbus:isthetransitionalzonebetweenthecorneaandsclera.Anabrupttransitionfromtheavascularcorneatothewell-vascularizedscleraoccurshere.Scleravenoussinus:intheirisocornealanglecontainstheapparatusfortheoutflowofaqueoushumorwhichisproducedbytheciliaryprocesses.scleraAnteriorchamberScleralvenoussinusTrabecularmeshwork

iris

anteriorlayer：adiscontinuouslayeroffibroblastsandmelanocyte.stroma：LCT,highlyvascularizedandwithabundantpigmentedcells.constrictorpupillaemuscle.epi.:anterior-myoepithelium,dilatorpupillaemuscle.

posterior-pigmentepithelialcells.Pupillocateinthecenter.Anteriorchamber：betweentheirisandthecornea.Posteriorchamber：betweentheirisandvitreousbody.

iris前房PosteriorchamberConstrictorPupillaeMAnteriorchamberCiliarybodyIsthethickenedanteriorportionofthevascularcoatandislocatedbetweentheirisandchoroid.

CiliarymuscleThestromaEpitheliallayerCiliaryprocesslensretinaRepresenttheinnermostlayeroftheeyeNeuralretina:innerlayerthatcontainsphotoreceptors.RPE,theouterlayerthatrestsonandattachedtothechoroid.NeuralretinaNonvisualpart,Opticpart.

Opticpapilla:wheretheopticnervejoinstheretina.Isdevoidofphotoreceptors.Ablindspotinthevisualfield.Foveacentralis:ashallowdepressionlocatedlateraltotheopticpapilla.Istheareaofgreatestvisualacuity.Maculalutea:ayellow-pigmentedzonesurroundsthefovea.

pigmentepi.GanglionCBipolarCConeCRodCsclerachoroidPigmentedEpi.GanglionC

retinaNucleiofvisuslCExternalprocessesPigmentedepi.Visualcell（HE）Maculalutea&foveacentralisOpticpapillaLenscapsuleEpi.LensfiberCrystallinelensCrystallinelensIsatransparent,avascular,biconvexstructure.Thecomponentsofthelens:lenscapsule,athickbasallamina

subcapsular

epi.,acuboidallayerofcells.ontheanteriorfaceofthelenslensfibers,derivedfro