习题与答案四

《组织学与胚胎学》习题与答案四单项选择题11.ThebasictissuesofthebodyincludeallofthefollowingEXCEPT

A.epithelium

B.lymphoidtissue

C.connectivetissue

D.muscletissue

E.nervoustissue

2.AllofthefollowingarefeaturesofepitheliumEXCEPT

A.morecellsandlessintercellularsubstance

B.cellsaretightlyjoinedwithanverynarrowintercellularspace

C.havefreesurfaceandbasalsurface

D.richincapillariesandnerveendings

E.covertheexternalandinternalsurfaceofthebody

3.SimplesquamousepitheliumisliningoftheallfollowingstructuresEXCEPTthe

A.bloodvessels

B.peritonealcavity

C.pulmonaryalveoli

D.lymphaticvessels

E.stomach

4.SimplesquamousepitheliumrelatestoallofthefollowingEXCEPTthe

A.surfaceoftheheart

B.endothelium

C.mesothelium

D.parietallayerofrenalcapsule

E.luminarsurfaceofthesmallintestine

5.Simplecuboidalepitheliumcoversthesurfaceofthe

A.thyroidfollicles

B.intestine

C.uterus

D.pulmonaryalveoli

E.cornea

6.Simplecolumnarepitheliumisliningofthe

A.respiratorypassages

B.seminiferoustubules

C.ureters

D.uterus

E.proximaltubulesinkidney

7.WhichisNOTacharacteristicofthepseudostratifiedciliatedcolumnarepithelium?

A.Itconsistsmainlyof4typesofcells

B.Onlythecolumnarcellsrestonthebesementmembrane

C.Columnarcellshavecilia

D.Gobletcellssecretemucus

E.Itlinesrespiratorypassages

8.Keratinizedstratifiedsquamousepitheliumispresentinthe

A.esophagus

B.thyroid

C.intestine

D.skin

E.urinarybladder

9.Whichofthefollowingdescriptionsrelatestothecilium?

A.9+2microtubules

B.Microfilaments

C.Brush-likeborder

D.Cellcoatonthesurface

E.Connectedtotheterminalweb

10.Inthecoreofmicrovillitherearesome

A.microfilaments

B.microtubules

C.intermediatefilaments

D.tonofilaments

E.myofilaments

11.Functionofthemicrovilliisto

A.removesmallparticlesonthesurface

B.increaseadhesionbetweenadjacentcells

C.increaseabsorptivearea

D.communicateadjacentcells

E.increasepermeability

12.Desmosome

A.isaspecializationatthebasalsurfaceofepithelium

B.isbelt-shaped

C.isparticularlywell-developedintheepidermis

D.iscomposedofthebasallaminaandthereticularlamina

E.servesasasemi-permeablemembrane

13.TheconnexonofgapjunctionrefertoallthefollowingdescriptionsEXCEPTA.abridgingstructurespanstheadjacentcellularmembranes

B.consistsofsixsub-unitsofprotein

C.thesub-unitsarrangearoundacentralchannel

D.adjacentcellscommunicatethroughthecentralchannels

E.increasestheabsorptivearea

14.WhichofthefollowingdescriptionsisNOTtrueofthebasementmembrane?

A.Amemberofthejunctionalcomplex

B.Locatedbetweenepitheliumandunderlyingconnectivetissue

C.Consistsofthebasallaminaandthereticularlamina

D.PositivestainingwithPAS

E.Observedwithsilverstain

15.Thestructureof9+2microtubulesisseeninthe

A.villus

B.microvillus

C.cilium

D.brush-likeborder

E.centriole

16.GapjunctionreferstoallthefollowingdescriptionsEXCEPT

A.oftenlocatedinthedeeppartofthelateralsurfacebetweenadjacentepithelialcells

B.thereisanarrowintercellularspace

C.thereisanintermediatelineintheintercellularspace

D.abridgingstructurespanstheadjacentcellularmembranes

E.ittransferstheimpulsesandpassesionsandsmallmolecules

17.WhichofthefollowingisNOTrelatedtodesmosomes?

A.Relativelywideintercellularspace

B.Intermediateline

C.Electrondenseattachmentplaque

D.Terminalweb

E.Hairpinloop-likefilaments

18.Secretionsofendocrineglandareusually

A.releasedintonearbyvascularsupply

B.releasedintosimpleducts

C.storedwithincells

D.releasedintobranchedducts

E.releasedintoalveolus

19.WhichisNOTafunctionofepithelium?

A.Absorptionandsecretion

B.Transportandexcretion

C.Protection

D.Sensoryreception

E.Nutrition

20.Thetransitionalepitheliumexistsinthe

A.urethra

B.urinarybladder

C.esophagus

D.stomach

E.transitionalportionbetweenuterusandvagina21.ThecharacteristicsofconnectivetissueareallofthefollowingEXCEPT

A.asmallnumberofcellsandalargeamountofintercellularsubstance

B.thecellspossessfreesurfaceandbasalsurface

C.itcontainsbloodandlymphaticvessels,nerves

D.functionsofsupport,connection,nutritionanddefense

E.noneoftheabove

22.WhichofthefollowingdoesNOTbelongtoconnectivetissue?

A.Reticulartissue

B.Osseoustissue

C.Cartilagetissue

D.Lymphoidtissue

E.Blood

23.Whichofthefollowingbelongstoconnectivetissueproper?

A.Cartilagetissue

B.Nervetissue

C.Muscletissue

D.Lymphoidtissue

E.Adiposetissue

24.AlloffollowingsarecomponentsoflooseconnectivetissueEXCEPT

A.collagenousfibers

B.elasticfibers

C.gobletcells

D.fibroblasts

E.macrophages

25.AlloffollowingcharacteristicsbelongtothereticularfiberEXCEPT

A.withasurfacecoatofcarbohydrates

B.compositionofelastinandmicrofibrils

C.positivestainingofPAS

D.argyrophilic

E.periodiccross-bandingsinEM

26.WhichofthefollowingsdoesNOTshowperiodiccross-banding?

A.Fibrilsincollagenousfiber

B.Microfibrilsinelasticfiber

C.Reticularfiber

D.Skeletalmusclefiber

E.Cardiacmusclefiber

27.Theelasticfibers

A.consistofelastinandmicrofibrils

B.consistoffibrils

C.arePASpositive

D.areargyrophilic

E.showperiodiccross-bandingsinEM

28.WhichtypeoffiberscanNOTbeseeninH&Estainedsections?

A.Skeletalmusclefiber

B.Smoothmusclefiber

C.Reticularfiber

D.Cardiacmusclefiber

E.Collagenousfiber

29.WhichisNOTtrueofgroundsubstanceinlooseconnectivetissue?

A.Jelly-likeandamorphous

B.Collagenousfibersaremaincomponent

C.Consistsofproteoglycans&glycoproteins

D.Formsamolecularsieve

E.Actsasabarriertospreadofmicroorganisms

30.Thecommonestcellsinlooseconnectivetissueisthe

A.mastcells

B.undifferentiatedcells

C.macrophages

D.fibroblasts

E.plasmacells

31.WhichisNOTacharacteristicoffibroblasts?

A.Large,stellateshapewithprocesses

B.Locatedclosetocollagenousfibers

C.Havealarge,palenucleuswithobviousnucleoli

D.Richinroughendoplasmicreticulumandwell-developedGolgicomplex

E.Takepartintheimmunereaction

32.Thecollagennecessarytoformscartissueisproducedby

A.fibroblasts

B.undifferentiatedcells

C.macrophages

D.mastcells

E.plasmacells

33.WhichisNOTacharacteristicoftheplasmacells?

A.Ovoidcellwitheccentricnucleus

B.Hasastrongbasophiliccytoplasm

C.Fullofdensegranulesincytoplasm

D.DerivedfromBlymphocytes

E.RichinRERandwell-developedGolgiapparatus

34.Whichofthefollowinghasultrastructuralfeaturesofprotein-secretingcells?

A.Mastcells

B.Fibrocytes

C.Macrophages

D.Plasmacells

E.Fatcells

35.WhichisNOTtrueofmacrophages?

A.Haveacidophiliccytoplasm

B.Havenucleuslikethespokesofawheel

C.Arederivedfromthemonocytes

D.Havenumerouslysosomesandphagosomes

E.Arehighlymotile

36.Heparinisproducedbywhichofthefollowingcells?

A.Hepatocytesorhepaticcells

B.Undifferentiatedcells

C.Macrophages

D.Eosinophils

E.Mastcells

37.Thepalestainedjuxtanuclearregionofplasmacellsisoccupiedby

A.roughendoplasmicreticulum

B.smoothendoplasmicreticulum

C.Golgicomplex

D.mitochondria

E.lysosomes

38.Intercellularsubstanceinconnectivetissueisproducedby

A.fatcells

B.fibrocytes

C.plasmacells

D.mastcells

E.fibroblasts

39.Histamineisreleasedby

A.fibroblasts

B.fibrocytes

C.mastcells

D.plasmacells

E.macrophages

40.Thechiefcomponentofdenseconnectivetissueis

A.collagenousfibers

B.reticularfibers

C.fibroblasts

D.fibrocytes

E.groundsubstance

41.Reticulartissueismostlydistributedin

A.Lymphoidorgan

B.circulatoryorgan

C.urinaryorgan

D.reproductiveorgan

E.digestiveorgan42.Theprincipleofclassificationforthecartilagetissueisthe

A.numberofcontainingcells

B.shapeofcontainingcells

C.quantityandtypeofcontainingfibers

D.typeofgroundsubstance

E.functionofcartilage

43.Cartilagecapsuleis

A.looseconnectivetissueatthesurfaceofcartilage

B.denseconnectivetissueatthesurfaceofcartilage

C.spacearoundcartilagecells

D.cartilagematrixaroundcartilagecells

E.collagenousfibersaroundcartilagecells

44.Whichofthefollowingisfoundasthecoatingforthearticularendsofbonesatjoints?

A.Hyalinecartilage

B.Elasticcartilage

C.Fibrocartilage

D.Bone

E.Denseconnectivetissue

45.Themajorskeletalcomponentoftheexternalearis

A.denseirregularconnectivetissue

B.denseregularconnectivetissue

C.hyalinecartilage

D.bone

E.elasticcartilage

46.HyalinecartilagetissuedoesNOTcontain

A.cellsthatcandivide

B.groundsubstance

C.fibers

D.bloodvessels

E.hyaluronicacid

47.WhichofthefollowingabouthyalinecartilageisFALSE?

A.ChondrocyteshavebasophiliccytoplasmB.Chondrocytesatperipheryareimmatureandsinglelocated

C.Chondrocytesinthecenterofamassofcartilagearepresentingroups

D.Matrixsurroundingthechondrocytesisacidophilic

E.collagenfibrilsarepresent

48.Isogenousgroupis

A.seenatperipheryofcartilage

B.seenatperipheryofbone

C.agroupofchondrocyteswithinasinglelacuna

D.asinglechondrocytewithinonelacuna

E.agroupofimmatureflattenedchondrocytes

49.Basophilicstainingofcartilagematrixisdueto

A.agreatnumberofcollagenousfibrils

B.abundantchondroitinsulfate

C.abundanthyaluronicacid

D.abundantcartilagecapsule

E.abundantroughendoplasmicreticulum

50.Cartilageandbonetissuesaresimilarinthat

A.thecellsoccupyalacuna

B.thematrixsurroundingeachcellformsbasophiliccapsule

C.thecellshavelongprocesses

D.thecellsaredistributedingroups

E.bothareavascular

51.Bonetissuecontains

A.collagenousfibers

B.elasticfibers

C.reticularfibers

D.chondrocytes

E.noneoftheabove

52.Hydroxyapatitecrystalcanbeseeninthe

A.perichondrium

B.periosteum

C.cartilagematrix

D.osteoidtissue

E.bonematrix

53.Osteoidtissueisproducedby

A.osteocytes

B.osteoblasts

C.osteoclasts

D.osteoprogenitorcells

E.mesenchymalcells

54.Whichofthefollowingisrelatedtotheosteocytes?

A.Thecellbodyoccupiesalacuna

B.Thegroundsubstancesurroundingcellsisstrongbasophilic

C.Cellsareroundwithnoprocesses

D.Cellsaredistributedingroups

E.Cellsmetabolizeindependently

55.OsteocytespossessallofthefollowingcharacteristicsEXCEPT

A.theyarepresentinlacunae

B.manyfineprocessesextendintocanaliculi

C.adjacentprocessescontactwithdesmosomes

D.theyhaveacidophilicorweaklybasophiliccytoplasm

E.theyobtainnutrientsfromtissuefluid

56.Besideosteocytes,bonelacunaealsocontain

A.blood

B.tissuefluid

C.lymphaticvessels

D.bloodvessels

E.nerves

57.Perichondriumandperiosteumcontain

A.osteocytes

B.osteoblasts

C.osteoclasts

D.osteoprogenitorcells

E.chondrocytes

58.Osteoprogenitorcellscandifferentiateinto

A.osteocytes

B.osteoblasts

C.osteoclasts

D.fibroblasts

E.noneoftheabove

59.Themostofchemicalcompositionsofbonematrixis

A.sodiumsalt

B.potassiumsalt

C.calciumsalt

D.collagen

E.elastin

60.Mostpeoplethinkosteoclastsarederivedfrom

A.osteoprogenitorcells

B.osteoblasts

C.fibroblasts

D.monocytes

E.mesenchymalcells

61.Matrixvesiclesarerelatedto

A.formationofbonecells

B.formationofosteoid

C.calcificationofosteoid

D.destroyofbonematrix

E.boneresorption

62.WhichofthefollowingisNOTtrueofbonematrix?

A.StainsacidophilicinH&Esections

B.Containsinorganicsalts

C.Containscollagenfibers

D.Hasahighersulfatesthanthatofcartilage

E.Arrangesregularlyinlamellae

63.Whichofthefollowingaretrueofgroundbonesections?

A.Preparedbycuttingcalcifiedboneintothinsections

B.Organicandinorganiccomponentsarebothpreserved

C.Permitobservationofcanaliculi

D.Allowforstudyofcelldetail

E.Allowforstudyofbloodvesselsinbone

64.Animportantfeatureinnutritionofcartilageisits

A.systemoflacunaeandcanaliculi

B.sinusoids

C.lymphatics

D.nutrientarteries

E.highwater(tissuefluid)contentofthematrixAnswers1.

B

2.

D

3.

E

4.

E5.

A

6.

D

7.

B

8.

D9.

A

10.

A

11.

C

12.

C13.

E

14.

A

15.

C

16.

C

17.

D

18.

A

19.

E

20.

B21.

B

22.

D

23.

E

24.

C25.

B

26.

B

27.

A

28.

C29.

B

30.

D

31.

E

32.

A33.

C

34.

D

35.

B

36.

E37.

C

38.

E

39.

C

40.

A41.

A

42.

C

43.

D

44.

A

45.

E46.

D

47.

D

48.

C

49.

B50.

A

51.

A

52.

E

53.

B54.

A

55.

C

56.

B

57.

D58.

B

59.

C

60.

D

61.

C62.

D

23.

C

64.

E

单项选择题21.Serumisdifferentfromplasmainthatitisdevoidof

A.fibrinogen

B.erythrocytes

C.allproteins

D.hormones

E.leukocytes

2.Normalconcentrationofleukocytesinhumansis

A.(4.2～5.5)×1012/L

B.(4～10)×109/L

C.(3.5～5)×1012/L

D.(105～135)×1012/L

E.(100～400)×109/L

3.WhichofthefollowingstatementsisNOTtrueofmatureerythrocytes?

A.Biconcavediscsinshape

B.7.5～8.5mmindiameter

C.Anucleuswithtwolobes

D.Richinhemoglobin

E.Havenoorganelles

4.TheABObloodgroupofhumansisdependenton

A.lymphocytes

B.monocytes

C.bloodplatelets

D.erythrocytes

E.leukocytes

5.Reticuluminreticulocytesisremnantsofthe

A.nucleus

B.lysosomes

C.mitochondria

D.endoplasmicreticulum

E.ribosomes

6.Thelifespanofredbloodcellsisabout

A.1-3days

B.14days

C.30days

D.120days

E.severalyears

7.Whichoneisresponsibleforcellbreath?

A.Basophilicgranulesinbasophils

B.Eosinophilicgranulesineosinophils

C.Hemoglobininerythrocytes

D.Azurophilicgranulesinmonocytes

E.Nertrophilicgranulesinneutrophils

8.Thebasisofclassificationofleukocytesisthe

A.cellsize

B.morphologyofnucleus

C.specificgranules

D.non-specificgranules

E.phagocytizingcapacity

9.WhichofthefollowingstatementsisNOTtrueofneutrophils?

A.Accountfor50%-70%ofthetotalcirculatingleukocytes

B.Theyareagranulocytes

C.Theyhaveapolymorphousnucleuswith2～5lobes

D.Theycontainspecificgranulesandazurophilicgranules

E.Neutrophilicgranulescontainbactericidalphagocytins

10.Whichofthefollowingbloodcellsisincreasedinnumberafteractiveinvasionofbacteria?

A.Neutrophils

B.Monocytes

C.Lymphocytes

D.Erythrocytes

E.Eosinophils

11.Thecellsphagocytosingantigen-antibodycomplexare

A.monocytes

B.neutrophils

C.platelets

D.erythrocytes

E.eosinophils

12.Whichtypeofcellsisassociatedwiththeallergicreactionandservesasananticoagulant?

A.Platelets

B.Monocytes

C.Neutrophils

D.Basophils

E.Eosinophils

13.PeroxidaseisNOTpresentin

A.neutrophils

B.monocytes

C.lymphocytes

D.basophilis

E.eosinophils

14.WhichofthefollowingstatementsabouteosinophilsisFALSE?

A.Constituteabout0.5%-3%oftheleukocytepopulation

B.Packedwithcoarse,pink-staininggranuleswithWrightstain

C.Usuallyhaveapolymorphousnucleuswith2lobes

D.Mayreleasehistaminasetoeasetheeffectsinallergicreaction

E.Mostphagocyticleukocytes

15.WhichoffollowingstatementsisNOTtrueofbasophils?

A.Constituteabout3%-8%oftheleukocytepopulation

B.Containlarge,darkblue-staininggranuleswithWrightstain

C.Specificgranulescontainheparinandhistamine

D.Nucleusmaybenotclearbecauseofoverlapwithgranules

E.Maybeassociatedwithallergicreaction

16.WhichoffollowingstatementsdoesNOTrefertomonocytes?

A.Accountforabout3%-8%oftheleukocytepopulation

B.Theyarethelargestcellsinblood

C.Azurophilicgranulescontainheparinandhistamine

D.Haveahorseshoeorkidney-shapednucleus

E.Differentiateintomacrophageswhenleavingoutofbloodvessels

17.WhichoffollowingstatementsisNOTtrueofplatelets?

A.Normalcountsrange(100-400)×109/L

B.Theyarefragmentsofmegakaryocytes

C.Haveahyalomereandagranulomere

D.Thefunctionistostopbleeding

E.Associatedwithallergicreaction

18.Histamineinbloodismainlyreleasedbythe

A.macrophages

B.eosinophils

C.mastcells

D.basophils

E.neutrophils

19.Duringparasiteinfection,thecellsthatareincreasedinnumberare

A.monocytes

B.lymphocytes

C.neutrophils

D.eosinophils

E.basophils

20.Theearliesthematopoieticcellsarederivedfromthe

A.yolksac

B.amnioticcavity

C.liver

D.spleen

E.boremarrow

21.Theazurophilicgranulesactuallyarethe

A.chromosomes

B.lysosomes

C.ribosomes

D.phagosomes

E.pinosomes

22.Eosinophilicgranulesineosinophilsarelysosomesinnaturebecausetheycontain

A.acidphosphatase

B.alkalinephosphatase

C.histaminase

D.lysozymes

E.phagocytins

23.BasophilscontainnumeroussurfacereceptorsforwhichofthefollowingIgs?

A.IgA

B.IgD

C.IgE

D.IgG

E.IgM

24.PlateletswouldLEASTlikelyadheretowhichofthefollowingstructures?

A.Collagen

B.Otherplatelets

C.Microfibrilsassociatedwithelastin

D.Normalendothelium

E.Damagedendothelium25.AcrosssectionthroughtheHbandofasarcomeredisplays

A.boththickandthinfilaments

B.onlythickfilaments

C.onlythinfilaments

D.azig-zagnetworkfilaments

E.nofilaments

26.WhereistheZlinesituatedinasarcomere?

A.InthemiddleoftheAband

B.InthemiddleoftheIband

C.InthemiddleoftheHband

D.InbetweenAandIbands

E.InbetweenAandHbands

27.TheTtubulesofskeletalmuscleiscontinuouswith

A.Aband

B.Zline

C.nuclearmembrane

D.cellmembrane

E.sarcoplasmicreticulum

28.Thewaveofcontractionisspreadfromcelltocellincardiacmuscleby

A.motorendplates

B.intercalateddiscs

C.musclespindles

D.densebodies

E.noneofabove

29.Withrespecttocardiacmusclefibers,allofthefollowingaretrueEXCEPT

A.thenucleiarecentrallylocated

B.theyaremultinucleatedfibers

C.theyarebranchedfibers

D.theycontainabundantmitochondria

E.crossstriationsarefound

30.Insmoothmuscle,impulsesforcontractionpassfromonemusclecelltothenextthrough

A.desmosones

B.tightjunctions

C.zonulaadherens

D.gapjunctions

E.hemidesmosones

31.SmoothmusclecellsdoNOTgenerallydisplay

A.sarcoplasm

B.sarcolemmas

C.sarcomere

D.prominentnuclei

E.bothactinandmyosin

32.Whichofthefollowingarecontainedwithinasinglemyofibril?

A.Nerves

B.Connctivetissue

C.Lymphatics

D.Mitochondria

E.Myofilaments

33.Comparedwithskeletalmuscle,whichofthefollowingstatementsistrueofsmoothmuscle?

A.Actin/myosinratioishigher

B.Actin/myosinratioislower

C.Actin/myosinratioisthesame

D.Therearenothickfilaments

E.Therearenothinfilaments

34.Inwhichregionofasarcomereofskeletalmusclemyofibril,eachthickfilamentaresurroundedbysixthinfilaments?

A.Zline

B.Aband

C.Iband

D.Hband

E.Mline

35.Asarcomereconsistsof

A.1/2Iband+Aband+1/2Iband

B.1/2Aband+Iband+1/2Aband

C.1/2Iband+1/2Aband

D.1/2Iband+Aband

E.Iband+Aband

36.Thecomponentofthethickfilamentsis

A.actin

B.myosin

C.tropomyosin

D.troponin

E.myoglobin

37.Troponinisattachedto

A.actin

B.myosin

C.tropomyosin

D.myoglobin

E.Ttubules

38.Theterminalcisternaeofskeletalmuscleareformedby

A.cellmembrane

B.RER

C.Golgicomplex

D.Ttubules

E.Ltubules

39.Whichofthefollowingstatementsaboutthenucleusofskeletalmusclecellsistrue?

A.Onenucleuslocatedinthecenterofthecells

B.Severalnucleiinthecenterofthecells

C.Onenucleusbeneaththesarcolemma

D.Manynucleibeneaththesarcolemma

E.Manynucleiscatteredinthesarcoplasm

40.AllofthefollowingaremorphologicalfeaturesofskeletalmusclefibersEXCEPT

A.longcylindricalcells

B.manyelongatednucleiinthecenterofthecell

C.distinctcrossstriations

D.richSER

E.abundantmitochondria

41.WhichofthefollowingstatementsaboutthemyofibrilisFALSE?

A.Thebasicstructurerelatedtocontractionofthreetypesofmuscletissue

B.Madeupofthickandthinfilaments

C.ShowingAandIbands,Hband,ZandMlines

D.SurroundedbyTandLtubules

E.Theshortestunitinitiscalledsarcomere

42.WhichofthefollowingstatementsaboutthesarcoplasmicreticulumofthestriatedmuscleisFALSE?

A.ItisspecializedSER

B.Mainbranchesruntransverselyandanastomoseintonetwork

C.Theendsofitformtheterminalcisternae

D.Thecalciumpumpscanbefoundonitsmembrane

E.ItsfunctionistostoreCa2+

43.Whencontractingthemyosinheadsbindto

A.Ca2+

B.ATP

C.troponin

D.actin

E.tropomyosin

44.Thechangeinthesarcomereduringcontractionis

A.AandHbandsshorten

B.Abandshortens

C.IandHbandsshorten

D.IandAbandsshorten

E.A,IandHbandsshorten

45.WhichofthefollowingisNOTvisibleinacompletelycontractedsarcomere?

A.Hband

B.Iband

C.Aband

D.Zline

E.sarcolemma

46.Thestructuralunitofskeletalmuscleisthe

A.sarcolemma

B.sarcomere

C.sarcoplasm

D.triad

E.Ttubule47.Thetypeofneuronsfoundinthespinalgangliais

A.multipolar

B.bipolar

C.pseudounipolar

D.apolar

E.unipolar

48.Thestructurebywhichaneuronconductsimpulsesis

A.axolemma

B.membrane-coatedvesicles

C.microtubules

D.microfilaments

E.neurofilaments

49.Neurotransmittersarestoredinandreleasedfrom

A.synapticvesicles

B.mitochondria

C.lysosomes

D.RER

E.SER

50.Thepresynapticelementofasynapsecanberecognizedinelectronmicrographsbythepresenceof

A.thickenedplasmalemma

B.microtubulesandmicrofilaments

C.abundantRER

D.mitochondria

E.membrane-boundvesicles

51.Themaximumlengthattainedbysomenervefibersis

A.severalcm

B.severalmm

C.30cm

D.about1m

E.2-3m

52.Themyelinsheathoftheperipheralnerveconsistsof

A.Schwanncellmembraneandcytoplasm

B.onlyschwanncellcytoplasm

C.multiplelayersofschwanncellmembrane

D.onlythelipidofSchwanncellmembrane

E.Schwanncellmembraneandbasallamina

53.Theaxonsofneurons

A.areallverylong

B.areneverbranched

C.containnoneurofibrils

D.cannotsynthesizeproteins

E.usuallyoneortwoaxonsperneuron

54.AsingleSchwanncellmayhousehowmanyunmyelinatedaxons?

A.One

B.Twoorthree

C.Adozenormore

D.Six

E.None

55.Nervesconsistof

A.axonsofmanyneuronsincludingbothafferentandefferentfibers

B.manynervefibers,butinasinglenerveonlyafferentsorefferents

C.dendritesofmanyneuronsincludingmyelinatedandunmyelinatedfibers

D.thecellprocessesofasingleneuron

E.asingleneuronconsistingofcellbodyandprocesses

56.Perineurium

A.isconnectivetissueencasingsinglenervefiber

B.isconnectivetissuesurroundingbundlesofnervefibers

C.isthecellmembraneofSchwanncells

D.isthebasalmembraneofSchwanncells

E.stainsbestwithsilversalts

57.OfnonneuronalcellsoftheCNS,thecellswiththefewestprocessesarethe

A.fibrousastrocytes

B.microglialcells

C.protoplasmicastrocytes

D.oligodendrocytes

E.ependymalcells

58.NodesofRanvierare

A.seeninalltypesofnervefibers

B.onlyseeninthemyelinatednervefibersofthePNS

C.onlyseenintheunmyelinatednervefibersoftheCNS

D.siteswheremyelinsheathandneurolemmaareinterrupted

E.thereasonforslowerconductionofimpulses

59.Whichofthefollowingisthekeystructureforthefastaxontransport?

A.SER

B.synapticvesicles

C.microtubules

D.microfilaments

E.neurofilaments

60.Thecellbodyisthetrophiccenterofaneuronbecauseitcontains

A.abundantRERandfreeribosomes

B.welldevelopedGolgiapparatus

C.microtubules

D.microfilaments

E.neurofilaments

61.Themostnumeroustypeofneuronsinthehumanbodyare

A.sensory,pseudounipolarneurons

B.sensory,bipolarneurons

C.motor,multipolarneurons

D.bipolar,interneurons

E.multipolar,interneurons

62.Whichofthefollowingisafeatureofaxonsordendrites,butnotofboth?

A.Synapseformation

B.Mitochondria

C.Neurofilaments

D.Nisslbodies

E.Microtubules

63.Capillariesinthebrainarewrappedbytheprocessesof

A.astrocytes

B.microglialcells

C.capsularcells

D.oligodendrocytes

E.ependymalcells

64.Electricalsynapseis

A.tightjunction

B.intermediatejunction

C.gapjunction

D.desmosome

E.hemidesmosome

65.Thereasonforrapidconductionofimpulsesalongmyelinatednervefibersisthattheyhave

longaxons

thickaxons

manysynapticvesiclesintheaxons

cleftsofSchmidtandLantermann

nodesofRanvier

66.Accordingtoapopularhypothesismicroglialcellsarederivedfrom

A.fibroblasts

B.ependymalcells

C.monocytes

D.astrocytes

E.neuroectodermalcellsAnswers1.

A

2.

B

3.

C

4.

D5.

E

6.

D

7.

C

8.

C9.

B

10.

A

11.

E

12.

D13.

C

14.

E

15.

A

16.

C

17.

E

18.

D

19.

D

20.

A21.

B

22.

A

23.

C

24.

D25.

B

26.

B

27.

D

28.

B29.

B

30.

D

31.

C

32.

E33.

A

34.

B

35.

A

36.

B37.

C

38.

E

39.

D

40.

B41.

A

42.

B

43.

D

44.

C45.

A

46.

B

47.

C

48.

A

49.

A

50.

E51.

D

52.

C

53.

D

54.

C55.

A

56.

B

57.

E

58.59.

C

60.

A

61.

E

62.

D63.

A

64.

C

65.

E

66.

C

单项选择题31.Thecornealepitheliumofthecorneais

A.simpleaquamousepithelium

B.nonkeratinizedstratifiedsquamousepithelium

C.keratinizedstratifiedsquamousepithelium.

D.simplecolumnarepithelium

E.pseudostratifiedcolumnarepithelium

2.WhichofthefollowingfeaturesdoesNOTbelongtothecornea?

A.Fivelayersofhistologicalstructure

B.Freenerveendingspresentinthecornealepithelium

C.Thebasalsurfaceoftheepitheliumisplane

D.Richinbloodvessels

E.Thestromamainlyconsistsoffinecollagenfibers

3.Schlemm'scanalislocatedin

A.Scleralimbus

B.cornea

C.retina

D.ciliarybody

E.iris

4.Themajorcomponentofthesclerais

A.pigmentedepithelium

B.collagenfiberbundles

C.elasticfibers

D.vascularbed

E.stradifiedsquamousepithelialcells

5.Theposteriorportionofthemiddlelayeroftheeyeballwallisthe

A.choroid

B.ciliarybody

C.sclera

D.cornea

E.iris

6.WhichofthefollowingisNOTtrueoftheciliarybody?

A.Containssphincteranddilatorofpupil

B.Threedirectionsofsmoothmusclefibers

C.Richinbloodvesselsandpigments

D.Synthesizesproteintoformciliaryzonules.

E.Regulatestheshapeofthelens

7.Ciliaryepithelium

A.consists