Test Bank For Dental Assisting A Comprehensive Approach - 6th - 2023 All Chapters - 9780357456521.pdf

Test Bank For DentalAssisting for
j j j j j




Modern DentalAssisting 14th Edition
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Editorsj:
JeffreyjR.jSmithj&jDebbiejS.jRobinson

,Chapterj1.jOraljEmbryologyjandjHistology



1. Whichjofjthejfollowingjisjthejprocessjbyjwhichjthejcellsjofjthejfertilizedjeggjdividejandjformj
ajballjofjcellsjduringjembryonicjdevelopment?
A. Cleavage
B. Differentiation
C. Organogenesis
D. Implantation
Answer:jA.jCleavage
Rationale:jCleavagejisjthejseriesjofjrapidjmitoticjdivisionsjthatjoccurjafterjfertilization,jleadi
ngjtojthejformationjofjajballjofjcellsjknownjasjthejmorula.
DIF:jEasy
TOP:jEmbryonicjdevelopmentj
MSC:jMultiplejChoice
2. Duringjthejfirstjweekjofjembryonicjdevelopment,jthejfertilizedjeggjbecomesjajstructurejcall
edja:
A. Zygote
B. Blastocyst
C. Morula
D. Embryo
Answer:jB.jBlastocyst
Rationale:jAfterjfertilizationjandjcleavage,jthejballjofjcellsj(morula)jformsjintojajblastocyst,j
whichjimplantsjintojthejuterinejwall.
DIF:jEasy
TOP:jEmbryonicjdevelopmentj
MSC:jMultiplejChoice
3. Thejoraljcavityjbeginsjtojdevelopjduringjwhichjofjthejfollowingjstagesjofjembryonicjdev
elopment?
A. Zygote
B. Fetal
C. Pre-implantation
D. Embryonic
Answer:jD.jEmbryonic
Rationale:jThejdevelopmentjofjthejoraljcavityjstartsjduringjthejembryonicjstage,jaroundjthejt
hirdjweekjofjpregnancy,jasjthejfacialjstructuresjbeginjtojform.
DIF:jModerate
TOP:jOraljcavityjdevelopmentj
MSC:jMultiplejChoice
4. Thejprocessjbyjwhichjthejneuraljtubejformsjandjbeginsjtojdevelopjintojthejbrainjandjspina
ljcordjisjknownjas:
A. Gastrulation
B. Neurulation
C. Cleavage
D. Organogenesis

, Answer:jB.jNeurulation
Rationale:jNeurulationjisjthejprocessjwherejthejneuraljtubejforms,jwhichjlaterjgivesjrisejtojth
ejcentraljnervousjsystemj(brainjandjspinaljcord).
DIF:jModerate
TOP:jNeuraljdevelopmentjMSC
:jMultiplejChoice
5. Whichjofjthejfollowingjisjthejprimaryjfunctionjofjthejmesodermjlayerjinjembryonicjdev
elopment?
A. Formationjofjthejnervousjsystem
B. Developmentjofjthejskinjandjhair
C. Formationjofjmuscles,jbones,jandjcirculatoryjsystems
D. Formationjofjthejdigestivejsystem
Answer:jC.jFormationjofjmuscles,jbones,jandjcirculatoryjsystems
Rationale:jThejmesodermjlayerjgivesjrisejtojstructuresjsuchjasjmuscles,jbones,jandjthejcirculatoryj
systemjduringjembryonicjdevelopment.
DIF:jModeratejTOP
:jGermjlayers
MSC:jMultiplejChoice
6. Thejtermj"histology"jrefersjtojthejstudyjof:
A. Thejstructurejandjfunctionjofjtissues
B. Thejdevelopmentjofjorgans
C. Thejstructurejofjcells
D. Thejdevelopmentjofjembryos
Answer:jA.jThejstructurejandjfunctionjofjtissues
Rationale:jHistologyjisjthejstudyjofjtissues,jincludingjtheirjstructurejandjfunction,jandjtheirjro
lejinjthejbody.
DIF:jEasyj TOP
:jHistology
MSC:jMultiplejChoice
7. Thejenameljofjthejtoothjisjderivedjfromjwhichjembryonicjtissue?
A. Ectoderm
B. Mesoderm
C. Endoderm
D. Neuraljcrest
Answer:jA.jEctoderm
Rationale:jEnamel,jthejhardjouterjsurfacejofjthejtooth,jdevelopsjfromjthejectodermaljlayerjofjt
hejembryo.
DIF:jModerate
TOP:jToothjdevelopmentjMSC:
jMultiplejChoice

8. Thejdevelopmentjofjthejfacejandjoraljcavityjduringjembryonicjdevelopmentjinvolvesjfusi
onjofjwhichjstructures?
A. Palataljshelves
B. Maxillaryjandjmandibularjprocesses
C. Frontaljnasaljprocess
D. BothjBjandjC

, Answer:jD.jBothjBjandjC
Rationale:jThejdevelopmentjofjthejfacejandjoraljcavityjinvolvesjthejfusionjofjthejmaxillaryjan
djmandibularjprocesses,jasjwelljasjthejfrontaljnasaljprocess.
DIF:jModerate
TOP:jFacialjdevelopmentjMSC:
jMultiplejChoice

9. Whichjstructurejisjresponsiblejforjthejformationjofjthejteethjduringjembryonicjdev
elopment?
A. Neuraljcrest
B. Ectoderm
C. Mesoderm
D. Endoderm
Answer:jA.jNeuraljcrest
Rationale:jThejneuraljcrestjcellsjplayjajcrucialjrolejinjthejformationjofjthejteethjduringjembryonicjd
evelopment.
DIF:jModerate
TOP:jToothjformationj
MSC:jMultiplejChoice
10. Thejfirstjindicationjofjtoothjdevelopmentjoccursjduringjwhichjweekjofjembryonicjdev
elopment?
A. 2ndjweek
B. 5thjweek
C. 6thjweek
D. 7thjweek
Answer:jC.j6thjweek
Rationale:jThejfirstjindicationjofjtoothjdevelopmentjappearsjduringjthej6thjweekjofjembryon
icjdevelopment,jwhenjthejdentaljlaminajforms.
DIF:jModerate
TOP:jToothjdevelopmentjMSC:
jMultiplejChoice

11. Thejprocessjofjossificationjrefersjto:
A. Thejformationjofjbloodjcells
B. Thejformationjofjbone
C. Thejdevelopmentjofjthejskin
D. Thejdevelopmentjofjthejdigestivejsystem
Answer:jB.jThejformationjofjbone
Rationale:jOssificationjisjthejprocessjbyjwhichjbonejtissuejisjformedjfromjcartilagejorjotherjc
onnectivejtissue.
DIF:jModerate
TOP:jBonejdevelopmentj
MSC:jMultiplejChoice
12. Whichjofjthejfollowingjisjajkeyjfeaturejofjthejhistologicaljstructurejofjenamel?
A. Itjisjcomposedjofjcollagenjfibers
B. Itjisjavascularjandjhasjnojlivingjcells
C. Itjcontainsjmanyjbloodjvessels
D. Itjhasjajhighjcontentjofjwater