CSCS Exam Practice Questions 2018, NS
G G G G G
CA CSCS - Study Review
G G G G
SkeletalGSystemGCompositionG-GAnswerG206GBonesGinGadultGbody
providesGleverage,Gsupport,GandGprotection
PulledGonGbyGmusclesGtoGallowGtheGbodyGtoGpushGorGpullGagainstGexternalGobjects
AxialGSkeletonG-GAnswerGSkull,GVertebralGColumn,GRibsGandGSternum
AppendicularGSkeletonG-
GAnswerGShoulderGGirdle;GbonesGofGarms,Gwrists,Ghands,GandGpelvicGgirdle;GbonesGofGleg
s,Gankles,GandGfeet
JointsG-GAnswerGJunctionsGofGbones
FibrousGJointG-GAnswerGAllowsGvirtuallyGnoGmovementG(SuturesGofGskull)
CartilaginousGJointG-GAnswerGAllowsGlimitedGmovementG(intervetebral)
SynovialGJointG-GAnswerGAllowsGconsiderableGmovementG(elbows/knees)
UniaxialG-GAnswerGHinge,GrotateGaroundGoneGaxisG(elbow)
BiaxialG-GAnswerGOperateGinGtwoGperpendicularGplanesG(ankle/wrist)
MultiaxialG-GAnswerGAllowGmovementGinGallGthreeGaxesG(shoulder/hip)
VertebralGColumnG-GAnswerGCervicalG7G(lordoticGcurve)
ThoracicG12G(KyphoticGcurve)
LumbarG5G(Lordotic)
SacralG5G(GKyphotic)G
CoccygealG3-5
CurvesGhelpGtoGdistributeGforces
MuscleGTissueG-GAnswerGEpimysiumG(outerGlayer)
PerimysiumG(surroundingGgroupGofGfibers/fascicules)G
EndomysiumG(surroundingGindividualGfibers)
FasciaG-GAnswerGDelicateG"cobwebby"Gtissue
MotorGUnitG-GAnswerGMotorGNeuronGandGtheGmuscleGfibersGitGinnervatesG
TypicallyGseveralGhundredGmuscleGfibersGinGaGsingleGmotorGunit
SarcolemmaG-GAnswerGTheGplasmaGmembraneGofGaGcell
,CSCS Exam Practice Questions 2018, NS
G G G G G
CA CSCS - Study Review
G G G G
TransverseGTubulesG-GAnswerGConnectGtoGplasmaGmembraneGtoGinterior
ActionGpotentialsGtravelGthrough
EnsuresGAPGexcitesGallGpartsGofGtheGmuscleGfiberGatGtheGsameGtime
SarcoplasmG(muscleGcytoplasm)G-GAnswerGGlycogen,Gmyoglobin,Gmitochondrion
MyofibrilsG-GAnswerGContractileGorganellesG
ExtendGlengthGofGmuscleGfiber
SarcoplasmicGReticulumG-GAnswerGMembranousGsacsGaroundGeachGmyofibrilG
StoresGCalciumGionsG(Ca2+)G
ReleaseGofGCa2+GtriggersGmuscleGcontraction
FilamentsG-GAnswerGFunctionGinGtheGcontractileGprocess
ThickGandGthinGfilaments
2GthinGforGeveryG1Gthick
SarcomereG-GAnswerGCompartmentsGofGarrangedGfilaments
BasicGfunctionalGunitGofGaGmyofibril
TroponinG>ropomyosinG-GAnswerGRegulatingGproteinsGthatGcoverGbindingGsites
SkeletalGMuscleGStriatedGappearanceG-
GAnswerGArrangementGof GActinG(thin)GandGMyosinG(thick)
Sliding-FilamentGTheoryGofGMuscularGContractionG-
GAnswerGActinGfilamentGatGeachGendGofGtheGsarcomereGslideGinwardGonGtheGmyosinGfilame
nts,GpullingGtheGZ-discsGtowardsGtheGM-
line/centerGofGtheGsarcomereG(shorteningGtheGmuscleGfiber)
Sliding-FilamentGphasesG-GAnswerGRestingGPhase
Excitation-contractionGcouplingGphase
ContractionGphase
RechargeGphase
RelaxationGphase
-70Gresting,G-55Gthreshold
MaximalGContractionGofGMyofibrilG-
GAnswerGLowGforceGpotentialGdueGtoGreducedGcrossbridge-actinGalignment
MuscleGActionGPotentialG-GAnswerGReleaseGacetylcholine
,CSCS Exam Practice Questions 2018, NS
G G G G G
CA CSCS - Study Review
G G G G
ActivationGofGAChGreceptors
ProductionGofGmuscleGactionGpotential
TerminationGofGAChGactivityG(rapidlyGbrokenGdownGbyGAChE)
Excitation-ContractionGCouplingG-
GAnswerGIncreaseGinGCa2+GconcentrationGinGtheGmuscleGstartsGcontraction
DecreaseGinGCa2+GstopsGitG
ActionGPotentialsGcausesGCa2+GtoGbeGreleasedGfromGtheGSRGintoGtheGmuscleGcell
MuscleGcellGmembraneGpumpsGCa2+GbackGintoGSR
MyosinGbindingGsitesGareGcoveredGandGtheGmuscleGrelaxes
ContractionGcycleG-GAnswerGATPGhydrolysis
FormationGofGcross-bridgesG=GmyosinGattachesGtoGmyosinGbindingGsitesGonGactin
PowerGStrokeG=GcrossbridgesGrotate,GslidingGtheGfilaments
DetachmentGofGmyosinGfromGActinG=GasGtheGnextGATPGbindsGtoGtheGmyosinGheadGtheGmyo
sinGheadGdetachesGfromGbindingGsite
CycleGwillGcontinueGasGlongGasGATPGandGCa2+GLevelsGareGhigh
ForceGProductionGofGaGMuscleG-
GAnswerGDictatedGbyGtheGnumberGofGcrossbridgesGthatGareGformedGbetweenGactinGandGm
yosin
CrossbridgeGCyclingG-
GAnswerGATPGandGCalciumGareGnecessaryGtoGcycleGtheGactinGandGmyosinGfilaments
ActivationGofGMuscleG-
GAnswerGArrivalGofGtheGactionGpotentialGatGtheGnerveGterminalGcausesGtheGreleaseGofGacet
ylcholine,GonceGaGsufficientGamountGofGacetylcholineGisGreleasedGanGactionGpotentialGisGge
neratedGacrossGtheGsarcolemmaGandGtheGfiberGcontracts
MusclesGwithGprecisionG-
GAnswerGMayGhaveGasGfewGasGoneGmuscleGfiberGperGmotorGnueron
MusclesGthatGrequireGlessGprecisionG-
GAnswerGMayGhaveGseveralGhundredGfibersGservedGbyGoneGmotorGneuron
All-or-NoneGprincipleG-
GAnswerGAllGtheGmuscleGfibersGinGaGmotorGunitGcontractGandGdevelopGforceGatGtheGsameGti
me
, CSCS Exam Practice Questions 2018, NS
G G G G G
CA CSCS - Study Review
G G G G
StimulatedGMotorGUnitG-GAnswerGTwitch
TwitchGSummation
TetanusGofGmotorGunit
MuscleGFiberGtypesG-GAnswerGTypeG1G(slowGtwitch)
TypeG2aG(fastGtwitch)
TypeG2xG(fast-twitch)
MuscleGFibersGvaryGinGtheirGcontentGofGmyoglobinG-
GAnswerGRedGmuscleGfibersGhaveGHIGHGmyoglobinGcontent
WhiteGmuscleGfibersGhaveGLOW GmyoglobinGcontent
TypeG1G-GAnswerGSlowGOxidativeGfibers
SmallestGinGdiameter
LeastGpowerful
RedGmuscleGfiber
GenerateGATPGbyGaerobicGcellularGrespiration
HighGResistantGtoGfatigue
Posture,Gendurance-typeGactivities
TypeG2aG-GAnswerGFastGOxidative-GlycolyticGFibers
IntermediateGinGdiameter
RedGmuscleGfiber
GenerateGATPGbyGcellularGrespirationGandGanaerobicGglycolysisG
ModerateGresistanceGtoGfatigue
TypeG2xG-GAnswerGFastGGlycolyticGFibers
LargestGinGdiameter
GenerateGmostGpowerfulGcontractions
WhiteGmuscleGfiber
FewGbloodGcapillaries/mitochondria
GenerateGATPGthroughGGlycolysisG
FatigueGquickly
IntenseGanaerobicGmovementsGofGshortGduration
MotorGUnitsGComposedGofG-
GAnswerGMuscleGfibersGwithGspecificGmorphologicalGandGphysiologicalGcharacteristicsGthat
GdetermineGtheirGfunctionalGcapacity
ForceGOutputGVariationG-
GAnswerGChangeGinGfrequencyGofGactivationGofGindividualGmotorGunitsGofGtheGnumberGofGa
ctivatedGmotorGunits
G G G G G
CA CSCS - Study Review
G G G G
SkeletalGSystemGCompositionG-GAnswerG206GBonesGinGadultGbody
providesGleverage,Gsupport,GandGprotection
PulledGonGbyGmusclesGtoGallowGtheGbodyGtoGpushGorGpullGagainstGexternalGobjects
AxialGSkeletonG-GAnswerGSkull,GVertebralGColumn,GRibsGandGSternum
AppendicularGSkeletonG-
GAnswerGShoulderGGirdle;GbonesGofGarms,Gwrists,Ghands,GandGpelvicGgirdle;GbonesGofGleg
s,Gankles,GandGfeet
JointsG-GAnswerGJunctionsGofGbones
FibrousGJointG-GAnswerGAllowsGvirtuallyGnoGmovementG(SuturesGofGskull)
CartilaginousGJointG-GAnswerGAllowsGlimitedGmovementG(intervetebral)
SynovialGJointG-GAnswerGAllowsGconsiderableGmovementG(elbows/knees)
UniaxialG-GAnswerGHinge,GrotateGaroundGoneGaxisG(elbow)
BiaxialG-GAnswerGOperateGinGtwoGperpendicularGplanesG(ankle/wrist)
MultiaxialG-GAnswerGAllowGmovementGinGallGthreeGaxesG(shoulder/hip)
VertebralGColumnG-GAnswerGCervicalG7G(lordoticGcurve)
ThoracicG12G(KyphoticGcurve)
LumbarG5G(Lordotic)
SacralG5G(GKyphotic)G
CoccygealG3-5
CurvesGhelpGtoGdistributeGforces
MuscleGTissueG-GAnswerGEpimysiumG(outerGlayer)
PerimysiumG(surroundingGgroupGofGfibers/fascicules)G
EndomysiumG(surroundingGindividualGfibers)
FasciaG-GAnswerGDelicateG"cobwebby"Gtissue
MotorGUnitG-GAnswerGMotorGNeuronGandGtheGmuscleGfibersGitGinnervatesG
TypicallyGseveralGhundredGmuscleGfibersGinGaGsingleGmotorGunit
SarcolemmaG-GAnswerGTheGplasmaGmembraneGofGaGcell
,CSCS Exam Practice Questions 2018, NS
G G G G G
CA CSCS - Study Review
G G G G
TransverseGTubulesG-GAnswerGConnectGtoGplasmaGmembraneGtoGinterior
ActionGpotentialsGtravelGthrough
EnsuresGAPGexcitesGallGpartsGofGtheGmuscleGfiberGatGtheGsameGtime
SarcoplasmG(muscleGcytoplasm)G-GAnswerGGlycogen,Gmyoglobin,Gmitochondrion
MyofibrilsG-GAnswerGContractileGorganellesG
ExtendGlengthGofGmuscleGfiber
SarcoplasmicGReticulumG-GAnswerGMembranousGsacsGaroundGeachGmyofibrilG
StoresGCalciumGionsG(Ca2+)G
ReleaseGofGCa2+GtriggersGmuscleGcontraction
FilamentsG-GAnswerGFunctionGinGtheGcontractileGprocess
ThickGandGthinGfilaments
2GthinGforGeveryG1Gthick
SarcomereG-GAnswerGCompartmentsGofGarrangedGfilaments
BasicGfunctionalGunitGofGaGmyofibril
TroponinG>ropomyosinG-GAnswerGRegulatingGproteinsGthatGcoverGbindingGsites
SkeletalGMuscleGStriatedGappearanceG-
GAnswerGArrangementGof GActinG(thin)GandGMyosinG(thick)
Sliding-FilamentGTheoryGofGMuscularGContractionG-
GAnswerGActinGfilamentGatGeachGendGofGtheGsarcomereGslideGinwardGonGtheGmyosinGfilame
nts,GpullingGtheGZ-discsGtowardsGtheGM-
line/centerGofGtheGsarcomereG(shorteningGtheGmuscleGfiber)
Sliding-FilamentGphasesG-GAnswerGRestingGPhase
Excitation-contractionGcouplingGphase
ContractionGphase
RechargeGphase
RelaxationGphase
-70Gresting,G-55Gthreshold
MaximalGContractionGofGMyofibrilG-
GAnswerGLowGforceGpotentialGdueGtoGreducedGcrossbridge-actinGalignment
MuscleGActionGPotentialG-GAnswerGReleaseGacetylcholine
,CSCS Exam Practice Questions 2018, NS
G G G G G
CA CSCS - Study Review
G G G G
ActivationGofGAChGreceptors
ProductionGofGmuscleGactionGpotential
TerminationGofGAChGactivityG(rapidlyGbrokenGdownGbyGAChE)
Excitation-ContractionGCouplingG-
GAnswerGIncreaseGinGCa2+GconcentrationGinGtheGmuscleGstartsGcontraction
DecreaseGinGCa2+GstopsGitG
ActionGPotentialsGcausesGCa2+GtoGbeGreleasedGfromGtheGSRGintoGtheGmuscleGcell
MuscleGcellGmembraneGpumpsGCa2+GbackGintoGSR
MyosinGbindingGsitesGareGcoveredGandGtheGmuscleGrelaxes
ContractionGcycleG-GAnswerGATPGhydrolysis
FormationGofGcross-bridgesG=GmyosinGattachesGtoGmyosinGbindingGsitesGonGactin
PowerGStrokeG=GcrossbridgesGrotate,GslidingGtheGfilaments
DetachmentGofGmyosinGfromGActinG=GasGtheGnextGATPGbindsGtoGtheGmyosinGheadGtheGmyo
sinGheadGdetachesGfromGbindingGsite
CycleGwillGcontinueGasGlongGasGATPGandGCa2+GLevelsGareGhigh
ForceGProductionGofGaGMuscleG-
GAnswerGDictatedGbyGtheGnumberGofGcrossbridgesGthatGareGformedGbetweenGactinGandGm
yosin
CrossbridgeGCyclingG-
GAnswerGATPGandGCalciumGareGnecessaryGtoGcycleGtheGactinGandGmyosinGfilaments
ActivationGofGMuscleG-
GAnswerGArrivalGofGtheGactionGpotentialGatGtheGnerveGterminalGcausesGtheGreleaseGofGacet
ylcholine,GonceGaGsufficientGamountGofGacetylcholineGisGreleasedGanGactionGpotentialGisGge
neratedGacrossGtheGsarcolemmaGandGtheGfiberGcontracts
MusclesGwithGprecisionG-
GAnswerGMayGhaveGasGfewGasGoneGmuscleGfiberGperGmotorGnueron
MusclesGthatGrequireGlessGprecisionG-
GAnswerGMayGhaveGseveralGhundredGfibersGservedGbyGoneGmotorGneuron
All-or-NoneGprincipleG-
GAnswerGAllGtheGmuscleGfibersGinGaGmotorGunitGcontractGandGdevelopGforceGatGtheGsameGti
me
, CSCS Exam Practice Questions 2018, NS
G G G G G
CA CSCS - Study Review
G G G G
StimulatedGMotorGUnitG-GAnswerGTwitch
TwitchGSummation
TetanusGofGmotorGunit
MuscleGFiberGtypesG-GAnswerGTypeG1G(slowGtwitch)
TypeG2aG(fastGtwitch)
TypeG2xG(fast-twitch)
MuscleGFibersGvaryGinGtheirGcontentGofGmyoglobinG-
GAnswerGRedGmuscleGfibersGhaveGHIGHGmyoglobinGcontent
WhiteGmuscleGfibersGhaveGLOW GmyoglobinGcontent
TypeG1G-GAnswerGSlowGOxidativeGfibers
SmallestGinGdiameter
LeastGpowerful
RedGmuscleGfiber
GenerateGATPGbyGaerobicGcellularGrespiration
HighGResistantGtoGfatigue
Posture,Gendurance-typeGactivities
TypeG2aG-GAnswerGFastGOxidative-GlycolyticGFibers
IntermediateGinGdiameter
RedGmuscleGfiber
GenerateGATPGbyGcellularGrespirationGandGanaerobicGglycolysisG
ModerateGresistanceGtoGfatigue
TypeG2xG-GAnswerGFastGGlycolyticGFibers
LargestGinGdiameter
GenerateGmostGpowerfulGcontractions
WhiteGmuscleGfiber
FewGbloodGcapillaries/mitochondria
GenerateGATPGthroughGGlycolysisG
FatigueGquickly
IntenseGanaerobicGmovementsGofGshortGduration
MotorGUnitsGComposedGofG-
GAnswerGMuscleGfibersGwithGspecificGmorphologicalGandGphysiologicalGcharacteristicsGthat
GdetermineGtheirGfunctionalGcapacity
ForceGOutputGVariationG-
GAnswerGChangeGinGfrequencyGofGactivationGofGindividualGmotorGunitsGofGtheGnumberGofGa
ctivatedGmotorGunits