SLE132 Lecture 5: Week5SLE132
11 May 2018
School
Course
Professor
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MULTIPLEȱCHOICE.ȱȱChooseȱtheȱoneȱalternativeȱthatȱbestȱcompletesȱtheȱstatementȱorȱanswersȱtheȱquestion.
1) Theȱtwoȱmajorȱdivisionsȱofȱtheȱnervousȱsystemȱareȱtheȱ________.
A) sensoryȱandȱmotor
B) sympatheticȱandȱparasympathetic
C) voluntaryȱandȱinvoluntary
D) centralȱnervousȱsystemȱ(CNS)ȱandȱperipheralȱnervousȱsystemȱ(PNS)
1)
2) Whichȱofȱtheseȱcarryȱincomingȱmessagesȱtowardȱtheȱcellȱbodyȱofȱaȱneuron?
A) dendrites B) supportingȱcells
C) actinȱfilaments D) axons
2)
3) Outnumberingȱneuronsȱbyȱupȱtoȱ50ȱtoȱ1,ȱwhichȱcellsȱprotect,ȱinsulate,ȱandȱreinforceȱneurons?
A) motorȱcells B) supportingȱcells
C) sensoryȱcells D) satelliteȱcells
3)
4) Theȱminimumȱchangeȱinȱaȱmembraneȇsȱvoltageȱthatȱmustȱoccurȱtoȱtriggerȱanȱactionȱpotentialȱis
calledȱtheȱ________.
A) restingȱpotential B) membraneȱpotential
C) synapticȱterminal D) threshold
4)
5) Inȱaȱchemicalȱsynapse,ȱwhatȱisȱtheȱnameȱofȱtheȱgapȱbetweenȱtheȱsendingȱandȱreceivingȱcells?
A) myelinȱsheath B) actionȱpotential
C) synapticȱterminal D) synapticȱcleft
5)
6) Theȱoperationȱofȱtheȱsodium-potassiumȱȈpumpȈȱmovesȱ________.
A) sodiumȱionsȱintoȱtheȱcellȱandȱpotassiumȱionsȱoutȱofȱtheȱcell
B) sodiumȱandȱpotassiumȱionsȱintoȱtheȱcell
C) sodiumȱandȱpotassiumȱionsȱoutȱofȱtheȱcell
D) sodiumȱionsȱoutȱofȱtheȱcellȱandȱpotassiumȱionsȱintoȱtheȱcell
6)
7) Theȱcentralȱnervousȱsystemȱisȱlackingȱinȱanimalsȱthatȱhaveȱ________.
A) aȱcompleteȱgut B) radialȱsymmetry
C) aȱclosedȱcirculatoryȱsystem D)
b
ilateralȱsymmetry
7)
8) Whichȱofȱtheȱfollowingȱstatementsȱaboutȱactionȱpotentialsȱisȱcorrect?
A) Actionȱpotentialsȱforȱaȱgivenȱneuronȱvaryȱinȱmagnitude.
B) Actionȱpotentialsȱareȱpropagatedȱdownȱtheȱlengthȱofȱtheȱaxon.
C) Movementȱofȱionsȱduringȱtheȱactionȱpotentialȱoccursȱmostlyȱthroughȱtheȱsodiumȱpump.
D) Actionȱpotentialsȱforȱaȱgivenȱneuronȱvaryȱinȱduration.
8)
