Anatomy Final Exam: Chapter 13 - Central Nervous System (CNS) Questions and Answers Updated 2026

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Anatomy Final Exam: Chapter 13 - Central Nervous System (CNS) Questions and Answers Updated 2026

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Anatomy Final Exam: Chapter 13 - Central Nervous System (CNS) Questions and Answers Updated 2026

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Anatomy Final Exam: Chapter 13 -
Central Nervous System (CNS)
Questions and Answers Updated
2026
WhatMareMtheMfoundationsMofMtheMNervousMSystem?M-MAnswerM-MCNSM

-MPNS

WhatMareMtheM2MmainMcomponentsMofMtheMcentralMnervousMsystem?M-
MAnswerM1.MspinalMcordM

2.MBrain

SpinalMCordM-MAnswerM(extensionMofMbrain)

-MAscendingMtractsM-MmovesMupMspinalMcordM(sensory)

-MDescendingMtractsM-MmovesMdownMspinalMcordM(motorMneurons)

WhatMareMtheM7McomponentsMofMtheMBrainMinMtheMCNS?M-
MAnswerM1.MCerebrumM(cortexMandMdeeperMareas)

2.MDiencephalonM(thalamus,Mhypothalamus,MpituitaryMandMpinealMgland)

3.MMesencephalonM(midbrain,McorporaMquadrigemina);MsubstantiaMnigra

4.MMetencephalonM(cerebellum,Mpons)

5.MMyelencephalonM(medullaMoblongata)

6.MMeningesM(dura,MarachnoidMandMpiaMmater)

7.MVentriclesMandMCSF

PERIPHERALMNERVOUSMSYSTEMM(PNS)M-
MAnswerMLocatedMoutsideMofMtheMbrainMandMspinalMcord.

WhatMareMtheM4McomponentsMthatMmakeMupMtheMPERIPHERALMNERVOUSMSYSTEMM(PN
S)?M-MAnswerM1.MSpinalMNervesM(31Mpairs)M

2.MNerveMPlexusM(4Mpairs)M

3.MCranialMNervesM(12Mpairs)M-M*trigeminalM(V)MandMvagusMn.M(X)M

, 4.MSpinalMReflexesM(somatic,Mvisceral)

AUTONOMICMNERVOUSMSYSTEMM(ANS)M-MAnswerM-MInvoluntaryMnervousMsystem.M

-MControlsMCM,MSMMandMglands.M

-MPreganglionicMandMPostganglionicMneurons.

WhatMareMtheMtwoMdivisionsMofMtheMAUTONOMICMNERVOUSMSYSTEMM(ANS)?M-
MAnswerM-MSympatheticMNervousMSystemM(SNS)M-M"FightMorMFlight"

-MParasympatheticMNervousMSystemM(PSNS)M-M"RestMandMRelax"

NervousMSystemMfunctions:M-
MAnswerM•MSpecializedMtoMperceiveMeventsMoccurringMinsideMandMoutsideMbody.

•MAbleMtoMrespondMtoMtheseMbodyMsignals,McontrolsMandMregulatesMbodyMfunctionsMin
MresponseM(HRMchanges,MhormonalMsecretions,Metc.).

•MResponsibleMforMmemory,Mlearning,MintelligenceMandMemotions.

GreyMmatterM-MAnswerM-MunmyelinatedMneuronsM(slower)M

-MneurogliaM(microgliaMandMastrocytes).M

-
MOuterMcortexMlayerMofMcerebrumMandMcerebellum,MalsoMinnerMportionMofMspinalMcord
.

WhiteMmatterM-MAnswerM-MmyelinatedMneuronsM(fast!)

BrainMweighsM~M-MAnswerM3MtoM3.5Mlbs

ContainsM~MneuronsM-MAnswerM100MbillionMneurons

ApproximatelyM20%MofMbloodMoutputMbyMheartM(cardiacMoutput)MisMsentMdirectlyMtoMb
rainMviaM2MsetsMofMarteries:M-MAnswerM1.MCarotidMarteries

2.MVertebralMarteriesM(transverseMforamenMofMcervicalMv.)

M

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Uploaded on: March 21, 2026
Number of pages: 6
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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