Test Bank For Dental Assisting for Modern Dental Assisting 14th Edition /9780443124020

Test Bank For Dental Assisting for
T T T T T




Modern Dental Assisting 14th Edition
T T T T




Editors T:
Jeffrey TR. TSmith T& TDebbie TS. TRobinson

,Chapter T1. TOral TEmbryology Tand THistology



1. Which Tof Tthe Tfollowing Tis Tthe Tprocess Tby Twhich Tthe Tcells Tof Tthe Tfertilized Tegg Tdivide
Tand Tform Ta Tball Tof Tcells Tduring Tembryonic Tdevelopment?

A. Cleavage
B. Differentiation
C. Organogenesis
D. Implantation
Answer: TA. TCleavage
Rationale: TCleavage Tis Tthe Tseries Tof Trapid Tmitotic Tdivisions Tthat Toccur Tafter
Tfertilization, Tleading Tto Tthe Tformation Tof Ta Tball Tof Tcells Tknown Tas Tthe Tmorula.

DIF: TEasy
TOP: TEmbryonic Tdevelopment
TMSC: TMultiple TChoice

2. During Tthe Tfirst Tweek Tof Tembryonic Tdevelopment, Tthe Tfertilized Tegg Tbecomes Ta
Tstructure Tcalled Ta:

A. Zygote
B. Blastocyst
C. Morula
D. Embryo
Answer: TB. TBlastocyst
Rationale: TAfter Tfertilization Tand Tcleavage, Tthe Tball Tof Tcells T(morula) Tforms Tinto Ta
Tblastocyst, Twhich Timplants Tinto Tthe Tuterine Twall.

DIF: TEasy
TOP: TEmbryonic Tdevelopment
TMSC: TMultiple TChoice

3. The Toral Tcavity Tbegins Tto Tdevelop Tduring Twhich Tof Tthe Tfollowing Tstages Tof
Tembryonic Tdevelopment?

A. Zygote
B. Fetal
C. Pre-implantation
D. Embryonic
Answer: TD. TEmbryonic
Rationale: TThe Tdevelopment Tof Tthe Toral Tcavity Tstarts Tduring Tthe Tembryonic Tstage,
Taround Tthe Tthird Tweek Tof Tpregnancy, Tas Tthe Tfacial Tstructures Tbegin Tto Tform.

DIF: TModerate
TOP: TOral TcavityTdevelopment
TMSC: TMultiple TChoice

4. The Tprocess Tby Twhich Tthe Tneural Ttube Tforms Tand Tbegins Tto Tdevelop Tinto Tthe Tbrain
Tand Tspinal Tcord Tis Tknown Tas:

A. Gastrulation
B. Neurulation
C. Cleavage
D. Organogenesis

, Answer: TB. TNeurulation
Rationale: TNeurulation Tis Tthe Tprocess Twhere Tthe Tneural Ttube Tforms, Twhich Tlater Tgives
Trise Tto Tthe Tcentral Tnervous Tsystem T(brain Tand Tspinal Tcord).

DIF: TModerate
TOP: TNeural Tdevelopment
TMSC: TMultiple TChoice

5. Which Tof Tthe Tfollowing Tis Tthe Tprimary Tfunction Tof Tthe Tmesoderm Tlayer Tin
Tembryonic Tdevelopment?

A. Formation Tof Tthe Tnervous Tsystem
B. Development Tof Tthe Tskin Tand Thair
C. Formation Tof Tmuscles, Tbones, Tand Tcirculatory Tsystems
D. Formation Tof Tthe Tdigestive Tsystem
Answer: TC. TFormation Tof Tmuscles, Tbones, Tand Tcirculatory Tsystems
Rationale: TThe Tmesoderm Tlayer Tgives Trise Tto Tstructures Tsuch Tas Tmuscles, Tbones, Tand Tthe
Tcirculatory Tsystem Tduring Tembryonic Tdevelopment.

DIF: TModerate
TTOP: TGerm Tlayers

MSC: TMultiple TChoice
6. The Tterm T"histology" Trefers Tto Tthe Tstudy Tof:
A. The Tstructure Tand Tfunction Tof Ttissues
B. The Tdevelopment Tof Torgans
C. The Tstructure Tof Tcells
D. The Tdevelopment Tof Tembryos
Answer: TA. TThe Tstructure Tand Tfunction Tof Ttissues
Rationale: THistology Tis Tthe Tstudy Tof Ttissues, Tincluding Ttheir Tstructure Tand Tfunction, Tand
Ttheir Trole Tin Tthe Tbody.

DIF: TEasy
T TOP:

THistology

MSC: TMultiple TChoice
7. The Tenamel Tof Tthe Ttooth Tis Tderived Tfrom Twhich Tembryonic Ttissue?
A. Ectoderm
B. Mesoderm
C. Endoderm
D. Neural Tcrest
Answer: TA. TEctoderm
Rationale: TEnamel, Tthe Thard Touter Tsurface Tof Tthe Ttooth, Tdevelops Tfrom Tthe Tectodermal
Tlayer Tof Tthe Tembryo.

DIF: TModerate
TOP: TTooth Tdevelopment
TMSC: TMultiple TChoice

8. The Tdevelopment Tof Tthe Tface Tand Toral Tcavity Tduring Tembryonic Tdevelopment
Tinvolves Tfusion Tof Twhich Tstructures?

A. Palatal Tshelves
B. Maxillary Tand Tmandibular Tprocesses
C. Frontal Tnasal Tprocess
D. Both TB Tand TC

, Answer: TD. TBoth TB Tand TC
Rationale: TThe Tdevelopment Tof Tthe Tface Tand Toral Tcavity Tinvolves Tthe Tfusion Tof Tthe
Tmaxillary Tand Tmandibular Tprocesses, Tas Twell Tas Tthe Tfrontal Tnasal Tprocess.

DIF: TModerate
TOP: TFacial Tdevelopment
TMSC: TMultiple TChoice

9. Which Tstructure Tis Tresponsible Tfor Tthe Tformation Tof Tthe Tteeth Tduring
Tembryonic Tdevelopment?

A. Neural Tcrest
B. Ectoderm
C. Mesoderm
D. Endoderm
Answer: TA. TNeural Tcrest
Rationale: TThe Tneural Tcrest Tcells Tplay Ta Tcrucial Trole Tin Tthe Tformation Tof Tthe Tteeth Tduring
Tembryonic Tdevelopment.

DIF: TModerate
TOP: TTooth
Tformation TMSC:

TMultiple TChoice

10. The Tfirst Tindication Tof Ttooth Tdevelopment Toccurs Tduring Twhich Tweek Tof
Tembryonic Tdevelopment?

A. 2nd Tweek
B. 5th Tweek
C. 6th Tweek
D. 7th Tweek
Answer: TC. T6th Tweek
Rationale: TThe Tfirst Tindication Tof Ttooth Tdevelopment Tappears Tduring Tthe T6th Tweek Tof
Tembryonic Tdevelopment, Twhen Tthe Tdental Tlamina Tforms.

DIF: TModerate
TOP: TTooth Tdevelopment
TMSC: TMultiple TChoice

11. The Tprocess Tof Tossification Trefers Tto:
A. The Tformation Tof Tblood Tcells
B. The Tformation Tof Tbone
C. The Tdevelopment Tof Tthe Tskin
D. The Tdevelopment Tof Tthe Tdigestive Tsystem
Answer: TB. TThe Tformation Tof Tbone
Rationale: TOssification Tis Tthe Tprocess Tby Twhich Tbone Ttissue Tis Tformed Tfrom Tcartilage
Tor Tother Tconnective Ttissue.

DIF: TModerate
TOP: TBone Tdevelopment
TMSC: TMultiple TChoice

12. Which Tof Tthe Tfollowing Tis Ta Tkey Tfeature Tof Tthe Thistological Tstructure Tof Tenamel?
A. It Tis Tcomposed Tof Tcollagen Tfibers
B. It Tis Tavascular Tand Thas Tno Tliving Tcells
C. It Tcontains Tmany Tblood Tvessels
D. It Thas Ta Thigh Tcontent Tof Twater