PORTAGE A&P1 MODULE 5 EXAM
QUESTIONS AND ANSWERS
RATED A+ FOR 2025-2026
Therevarevfivevtypesvofvmusclevtissuevfoundvinvthevbodyv-vCORRECTvANSWERFalsev(Onlyv3)
`Smoothvandvcardiacvmusclevtissuevarevbothvundervvoluntaryvcontrol.v-vCORRECTvANSWERFalse
Thevlumbarvplexusvisvpartvofvthevcentralvnervousvsystemv-
vCORRECTvANSWERFalsev(Thisvisvavperipheralvnerve)
Avsensoryvsignalvisvavsignalvthatvisvsentvfromvavmusclevtovthevcentralvnervousvsystem.v-
vCORRECTvANSWERTrue
Thevlumbarvplexusvcontainsvnervesvthatvinnervatevthevthigh.v-vCORRECTvANSWERTrue
Ligamentsvconnectvwhichvtypesvofvtissue?v-vCORRECTvANSWERConnectvbonevtovbone
Aceytlcholinevisvwhatvtypevofvsubstance?v-vCORRECTvANSWERNeurotransmitter
Duringvavmusclevcontractionvwhichvproteinvmyofilamentvcontainsvcross-bridges?v-
vCORRECTvANSWERMyosin
, Whatvisvthevnamevofvthevthickvmyofilament?v-vCORRECTvANSWERMyosin
Thevreturnvofvcalciumvionsvintovthevsarcoplasmicvreticulumvcausesvwhatvtovoccur?v-
vCORRECTvANSWERMusclevrelaxationv(musclevcontractionvstops)
Identifyvthevmusclevandvitsvinnervationvhighlightedvinvthevfigurevbelow.v-
vCORRECTvANSWERAnswer:vZygomaticusvmajor
Innervation:vFacialvNevev(CNvVII)
Identifyvthevmusclevandvitsvbilateralvactionvhighlightedvinvthevfigurevbelow.vBevasvspecificvasvpossibl
evinvyourvresponse.v-vCORRECTvANSWERLongissimusvthoracis
BilateralvAction:vExtensionvofvspine
Identifyvthevthreevdivisionsvofvthevmusclevgroupvhighlightedvbelow.v-
vCORRECTvANSWERAnswer:vLongissimusvthoracis,vLongissimusvcervicis,vLongissimusvcapitits
Identifyvthevoriginvandvinnervationvofvthevmusclevindicatedvbyvthevpointersvbelow.vBevasvspecificvas
vpossiblevinvyourvresponse.v-vCORRECTvANSWERAnswer:
Origin:vcartilagevofvribsv7-
12,vxiphoidvprocess,vlumbarvvertebraev(Studentvmustvincludevatvleastv2vforvfullvcredit)
Innervation:vphrenicvnervev(C3-5)
(Thisvisvthevdiaphragm.)
Identifyvthevmusclevandvitsvoriginvindicatedvinvthevfigurevbelow.v-vCORRECTvANSWERAnswer:
RhomboidsvMajorv(notvminor)
Origin:vSpinousvProcessvT2-5
Usevthevfigurevbelowvtovanswervthevfollowingvquestion:
QUESTIONS AND ANSWERS
RATED A+ FOR 2025-2026
Therevarevfivevtypesvofvmusclevtissuevfoundvinvthevbodyv-vCORRECTvANSWERFalsev(Onlyv3)
`Smoothvandvcardiacvmusclevtissuevarevbothvundervvoluntaryvcontrol.v-vCORRECTvANSWERFalse
Thevlumbarvplexusvisvpartvofvthevcentralvnervousvsystemv-
vCORRECTvANSWERFalsev(Thisvisvavperipheralvnerve)
Avsensoryvsignalvisvavsignalvthatvisvsentvfromvavmusclevtovthevcentralvnervousvsystem.v-
vCORRECTvANSWERTrue
Thevlumbarvplexusvcontainsvnervesvthatvinnervatevthevthigh.v-vCORRECTvANSWERTrue
Ligamentsvconnectvwhichvtypesvofvtissue?v-vCORRECTvANSWERConnectvbonevtovbone
Aceytlcholinevisvwhatvtypevofvsubstance?v-vCORRECTvANSWERNeurotransmitter
Duringvavmusclevcontractionvwhichvproteinvmyofilamentvcontainsvcross-bridges?v-
vCORRECTvANSWERMyosin
, Whatvisvthevnamevofvthevthickvmyofilament?v-vCORRECTvANSWERMyosin
Thevreturnvofvcalciumvionsvintovthevsarcoplasmicvreticulumvcausesvwhatvtovoccur?v-
vCORRECTvANSWERMusclevrelaxationv(musclevcontractionvstops)
Identifyvthevmusclevandvitsvinnervationvhighlightedvinvthevfigurevbelow.v-
vCORRECTvANSWERAnswer:vZygomaticusvmajor
Innervation:vFacialvNevev(CNvVII)
Identifyvthevmusclevandvitsvbilateralvactionvhighlightedvinvthevfigurevbelow.vBevasvspecificvasvpossibl
evinvyourvresponse.v-vCORRECTvANSWERLongissimusvthoracis
BilateralvAction:vExtensionvofvspine
Identifyvthevthreevdivisionsvofvthevmusclevgroupvhighlightedvbelow.v-
vCORRECTvANSWERAnswer:vLongissimusvthoracis,vLongissimusvcervicis,vLongissimusvcapitits
Identifyvthevoriginvandvinnervationvofvthevmusclevindicatedvbyvthevpointersvbelow.vBevasvspecificvas
vpossiblevinvyourvresponse.v-vCORRECTvANSWERAnswer:
Origin:vcartilagevofvribsv7-
12,vxiphoidvprocess,vlumbarvvertebraev(Studentvmustvincludevatvleastv2vforvfullvcredit)
Innervation:vphrenicvnervev(C3-5)
(Thisvisvthevdiaphragm.)
Identifyvthevmusclevandvitsvoriginvindicatedvinvthevfigurevbelow.v-vCORRECTvANSWERAnswer:
RhomboidsvMajorv(notvminor)
Origin:vSpinousvProcessvT2-5
Usevthevfigurevbelowvtovanswervthevfollowingvquestion: