Test Bank for Modern Dental Assisting, 14th Edition by Debbie S. Robinson.pdf

Test Bank For Dental Assisting for
m m m m m




Modern Dental Assisting 14th Edition
m m m m




Editorsm:
JeffreymR.mSmithm&mDebbiemS.mRobinson

,Chapterm1.mOralmEmbryologymandmHistology



1. Whichmof mthemfollowingmismthemprocessmbymwhichmthemcellsmof mthemfertilized meggmdividem
and mformmamballmof mcellsmduringmembryonicmdevelopment?
A. Cleavage
B. Differentiation
C. Organogenesis
D. Implantation
Answer:mA.mCleavage
Rationale:mCleavagemismthemseriesmof mrapid mmitoticmdivisionsmthat moccurmaftermfertilization,
mleadingmtomthemformationmof mamballmof mcellsmknownmasmthemmorula.

DIF:mEasy
TOP:mEmbryonicmdevelopment
mMSC:mMultiplemChoice

2. Duringmthemfirst mweekmof membryonicmdevelopment,mthemfertilized meggmbecomesmamstructu
remcalled ma:
A. Zygote
B. Blastocyst
C. Morula
D. Embryo
Answer:mB.mBlastocyst
Rationale:mAftermfertilizationmand mcleavage,mthemballmof mcellsm(morula)mformsmintomamblast
ocyst,mwhichmimplantsmintomthemuterinemwall.
DIF:mEasy
TOP:mEmbryonicmdevelopment
mMSC:mMultiplemChoice

3. Themoralmcavitymbeginsmtomdevelopmduringmwhichmof mthemfollowingmstagesmof membryo
nicmdevelopment?
A. Zygote
B. Fetal
C. Pre-implantation
D. Embryonic
Answer:mD.mEmbryonic
Rationale:mThemdevelopment mof mthemoralmcavitymstartsmduringmthemembryonicmstage,maroun
d mthemthird mweekmof mpregnancy,masmthemfacialmstructuresmbeginmtomform.
DIF:mModerate
TOP:mOralmcavitymdevelopment
mMSC:mMultiplemChoice

4. Themprocessmbymwhichmthemneuralmtubemformsmand mbeginsmtomdevelopmintomthembrainma
nd mspinalmcord mismknownmas:
A. Gastrulation
B. Neurulation
C. Cleavage
D. Organogenesis

, Answer:mB.mNeurulation
Rationale:mNeurulationmismthemprocessmwheremthemneuralmtubemforms,mwhichmlatermgivesmri
semtomthemcentralmnervousmsystemm(brainmand mspinalmcord).
DIF:mModerate
TOP:mNeuralmdevelopment mMS
C:mMultiplemChoice
5. Whichmof mthemfollowingmismthemprimarymfunctionmof mthemmesodermmlayerminmembryo
nicmdevelopment?
A. Formationmof mthemnervousmsystem
B. Development mof mthemskinmand mhair
C. Formationmof mmuscles,mbones,mand mcirculatorymsystems
D. Formationmof mthemdigestivemsystem
Answer:mC.mFormationmof mmuscles,mbones,mandmcirculatorymsystems
Rationale:mThemmesodermmlayermgivesmrisemtomstructuresmsuchmasmmuscles,mbones,mand mthemcirc
ulatorymsystemmduringmembryonicmdevelopment.
DIF:mModeratemTO
P:mGermmlayers
MSC:mMultiplemChoice
6. Themtermm"histology"mrefersmtomthemstudymof:
A. Themstructuremand mfunctionmof mtissues
B. Themdevelopment mof morgans
C. Themstructuremof mcells
D. Themdevelopment mof membryos
Answer:mA.mThemstructuremandmfunctionmof mtissues
Rationale:mHistologymismthemstudymof mtissues,mincludingmtheirmstructuremand mfunction,mand m
theirmroleminmthembody.
DIF:mEasym TO
P:mHistology
MSC:mMultiplemChoice
7. Themenamelmof mthemtoothmismderived mfrommwhichmembryonicmtissue?
A. Ectoderm
B. Mesoderm
C. Endoderm
D. Neuralmcrest
Answer:mA.mEctoderm
Rationale:mEnamel,mthemhard moutermsurfacemof mthemtooth,mdevelopsmfrommthemectodermalml
ayermof mthemembryo.
DIF:mModerate
TOP:mToothmdevelopment mMS
C:mMultiplemChoice
8. Themdevelopment mof mthemfacemand moralmcavitymduringmembryonicmdevelopment minvolv
esmfusionmof mwhichmstructures?
A. Palatalmshelves
B. Maxillarymand mmandibularmprocesses
C. Frontalmnasalmprocess
D. BothmBmand mC

, Answer:mD.mBothmBmandmC
Rationale:mThemdevelopment mof mthemfacemand moralmcavityminvolvesmthemfusionmof mthemmaxi
llarymand mmandibularmprocesses,masmwellmasmthemfrontalmnasalmprocess.
DIF:mModerate
TOP:mFacialmdevelopment mMS
C:mMultiplemChoice
9. Whichmstructuremismresponsiblemformthemformationmof mthemteethmduringmembryon
icmdevelopment?
A. Neuralmcrest
B. Ectoderm
C. Mesoderm
D. Endoderm
Answer:mA.mNeuralmcrest
Rationale:mThemneuralmcrest mcellsmplaymamcrucialmroleminmthemformationmof mthemteethmduringmem
bryonicmdevelopment.
DIF:mModerate
TOP:mToothmformation
mMSC:mMultiplemChoic

e
10. Themfirst mindicationmof mtoothmdevelopment moccursmduringmwhichmweekmof membryon
icmdevelopment?
A. 2nd mweek
B. 5thmweek
C. 6thmweek
D. 7thmweek
Answer:mC.m6thmweek
Rationale:mThemfirst mindicationmof mtoothmdevelopment mappearsmduringmthem6thmweekmof me
mbryonicmdevelopment,mwhenmthemdentalmlaminamforms.
DIF:mModerate
TOP:mToothmdevelopment mMS
C:mMultiplemChoice
11. Themprocessmof mossificationmrefersmto:
A. Themformationmof mblood mcells
B. Themformationmof mbone
C. Themdevelopment mof mthemskin
D. Themdevelopment mof mthemdigestivemsystem
Answer:mB.mThemformationmof mbone
Rationale:mOssificationmismthemprocessmbymwhichmbonemtissuemismformed mfrommcartilagemor
mothermconnectivemtissue.

DIF:mModerate
TOP:mBonemdevelopment m
MSC:mMultiplemChoice
12. Whichmof mthemfollowingmismamkeymfeaturemof mthemhistologicalmstructuremof menamel?
A. It mismcomposed mof mcollagenmfibers
B. It mismavascularmand mhasmnomlivingmcells
C. It mcontainsmmanymblood mvessels
D. It mhasmamhighmcontent mof mwater