CNS Exam I Practice Questions and
Answers Updated 2026
TheMnervousMsystemMplaysMaMdominantMroleMinMallMbodyMresponsesMtoMinternalMand
MexternalMdemandMEXCEPT?
A.Mcoordination
B.Mintegration
C.Mcontraction
D.MassociationM-MAnswerMC
TheMcentralMnervousMsystemMconsistsMofMtwoMpartsMtheMbrainMorMencephalonMandMth
eMspinalMcordMorMmedullaMspinalis,MhowMmanyMcranialMnerveMpairsMareMthere?
a.M24
b.M31
c.12
d.M62M-MAnswerMc
TheMsomaticMcomponentMofMtheMnervousMsystemMorMtheMvoluntaryMcomponentMinnerva
tingMskeletalMmusculature,MwhatMchemicalMisMreleasedMbyMtheMsomaticMaxonMendings?
a.Mexcitatory
b.MAcetylcholine
c.MNorepinephrin
d.MCholinergicM-MAnswerMb
TheMautonomicMorMvisceralMcomponentMofMtheMnervousMsystemMalsoMknownMasMtheMi
nvoluntaryMportionMinnervatesMwhichMofMtheMfollowingMmusculature?
a.Msmooth
b.Mskeletal
c.Mintrafusal
d.MextrafusalM-MAnswerMa
TheMparasympatheticMsubdivisionMofMtheMvisceralMcomponentMofMtheMnervousMsystemM
hasMneuronsMlocatedMinMtheMCNSMandMPNSMallMofMtheMfollowingMcranialMnervesMare
MpresentMEXCEPT?
, a.MVII
b.MXI
c.MIX
d.MXM-MAnswerMb
InMtheMsympatheticMsubdivisionMtheMpreganglionicMneuronsMreleaseMACHMandMpostgangli
onicMsympatheticsMgenerallyMreleaseMnorepinephrineMwhatMisMtheMexception?
a.MconnectiveMtissue
b.MlymphaticMvessels
c.MerectileMtissue
d.MarrectorMpiliMmusclesM-MAnswerMd
ThereMareMmanyMdivisionsMinMtheMnervousMsystemMthereforeMitMisMcorrectMtoMassume
MthatMthereMareMmultipleMnervousMsystemsMcontainedMwithinMtheMbody.
TMorMFM-MAnswerMF
TheMthirdMdivisionMofMtheMknownMasMtheMentericMorMintrinsicMsystemMrunsMalongMthe
MgutMwallMfromMesophagusMtoManalMverge,MwhatMactionsMisMthisMsystemMbestMknown
Mfor?
a.Mcontraction
d.Mswallowing
c.MperistalticMreflexesM
d.MconstipationM-MAnswerMc
theM3MprimaryMbrainMvesiclesMareMtheMprosencephalon,Mmesencephalon,MandMrhombenc
ephalon,MallMofMtheMfollowingMareMfurtherMdivisionMofMtheseMstructureMexcept.
a.MneuralMcrest
b.Mmesencephalon
c.Mdiencephalon
d.Mmyelencephalon
e.MtelencephalonM-MAnswerMa
Answers Updated 2026
TheMnervousMsystemMplaysMaMdominantMroleMinMallMbodyMresponsesMtoMinternalMand
MexternalMdemandMEXCEPT?
A.Mcoordination
B.Mintegration
C.Mcontraction
D.MassociationM-MAnswerMC
TheMcentralMnervousMsystemMconsistsMofMtwoMpartsMtheMbrainMorMencephalonMandMth
eMspinalMcordMorMmedullaMspinalis,MhowMmanyMcranialMnerveMpairsMareMthere?
a.M24
b.M31
c.12
d.M62M-MAnswerMc
TheMsomaticMcomponentMofMtheMnervousMsystemMorMtheMvoluntaryMcomponentMinnerva
tingMskeletalMmusculature,MwhatMchemicalMisMreleasedMbyMtheMsomaticMaxonMendings?
a.Mexcitatory
b.MAcetylcholine
c.MNorepinephrin
d.MCholinergicM-MAnswerMb
TheMautonomicMorMvisceralMcomponentMofMtheMnervousMsystemMalsoMknownMasMtheMi
nvoluntaryMportionMinnervatesMwhichMofMtheMfollowingMmusculature?
a.Msmooth
b.Mskeletal
c.Mintrafusal
d.MextrafusalM-MAnswerMa
TheMparasympatheticMsubdivisionMofMtheMvisceralMcomponentMofMtheMnervousMsystemM
hasMneuronsMlocatedMinMtheMCNSMandMPNSMallMofMtheMfollowingMcranialMnervesMare
MpresentMEXCEPT?
, a.MVII
b.MXI
c.MIX
d.MXM-MAnswerMb
InMtheMsympatheticMsubdivisionMtheMpreganglionicMneuronsMreleaseMACHMandMpostgangli
onicMsympatheticsMgenerallyMreleaseMnorepinephrineMwhatMisMtheMexception?
a.MconnectiveMtissue
b.MlymphaticMvessels
c.MerectileMtissue
d.MarrectorMpiliMmusclesM-MAnswerMd
ThereMareMmanyMdivisionsMinMtheMnervousMsystemMthereforeMitMisMcorrectMtoMassume
MthatMthereMareMmultipleMnervousMsystemsMcontainedMwithinMtheMbody.
TMorMFM-MAnswerMF
TheMthirdMdivisionMofMtheMknownMasMtheMentericMorMintrinsicMsystemMrunsMalongMthe
MgutMwallMfromMesophagusMtoManalMverge,MwhatMactionsMisMthisMsystemMbestMknown
Mfor?
a.Mcontraction
d.Mswallowing
c.MperistalticMreflexesM
d.MconstipationM-MAnswerMc
theM3MprimaryMbrainMvesiclesMareMtheMprosencephalon,Mmesencephalon,MandMrhombenc
ephalon,MallMofMtheMfollowingMareMfurtherMdivisionMofMtheseMstructureMexcept.
a.MneuralMcrest
b.Mmesencephalon
c.Mdiencephalon
d.Mmyelencephalon
e.MtelencephalonM-MAnswerMa