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BIOD 151.

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Exam of 7 pages for the course MODULE 7 at MODULE 7 (BIOD 151.)

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BIOD 151- MODULE 3 PROBLEM SET
QUESTIONS WITH CORRECT
ANSWERS 2025/2026
NameAtheAtwoAmainAdivisionsAofAtheAdigestiveAsystemAorgans.A-
AcorrectAanswersTheAhumanAdigestiveAorgansAcanAbeAdividedAintoAthoseAofAtheAalimentaryAcan


alAandAtheAaccessoryAdigestiveAorgans.

NameAtheAsevenApartsAofAtheAgastrointestinalAtract.A-
AcorrectAanswersmouth,Apharynx,Aesophagus,Astomach,AsmallAintestine,AlargeAintestine,AandAa


nus.

NameAtheAsixAdigestiveAsystemAaccessoryAorgans.A-
AcorrectAanswersteeth,Atongue,Agallbladder,AsalivaryAglands,AliverAandApancreas.



WhatAstructuresArespectivelyAformAtheseApartsAofAtheAmouth?A-
AcorrectAanswersa.AOpeningA=ALipsb.AFloorA=ATonguec.AWallsA=ACheeksd.ARoofA=AHard/softApala


tes

ListAtheAtwoAbonesAandAtheAmembraneAtoAwhichAtheAtongueAisAattached.A-
AcorrectAanswersTheAtongueAisAattachedAtoAtheAhyoidAboneAandAtheAmandibleAandAtheAmembr


anousAlingualAfrenulum.

HowAmanyAteethAareAthereAinAanAadultAhumanAandAwhatAdoAtheyAdo?A-
AcorrectAanswersThereAareAthirty-


twoAteethAinAtheAhumanAmouth.ATogetherAtheyAworkAtoAtear,AcrushAandAgrindAfoodAtoAmechan
icallyAdigestAfood.

WhatAareAtheAfourAtypesAofAteeth,AhowAmanyAofAeachAtypeAareAthereAandAwhatAdoesAeachAtyp
eAdo?A-AcorrectAanswersTheAteethAareAcomposedAofAtwoAchisel-
shapedAincisorsAforAbiting;AoneApointedAcanineAforAtearing;AtwoAfairlyAflatApre-
molarsAforAgrinding;AandAthreeAflatAmolarsAforAcrushing.

WhatAisAtheAspecificAfunctionAofAtheAsalivaryAglandAinAtheAprocessAofAdigestion?A-
AcorrectAanswersFoodAisAmixedAandAmoistenedAwithAsalivaA(fromAtheAsalivaryAglands)Acontaini


ngAenzymesAthatAbeginAtheAprocessAofAchemicalAdigestionAbyAbreakingAdownAstarches.

WhereAareAtasteAbudsAlocated?A-
AcorrectAanswersTasteAbudsAareAfoundAprimarilyAonAtheAtongueAbutAalsoAonAtheAsurfaceAofAtheA


mouthAandAtheAwallAofAtheApharynx.

DescribeAtheAfunctionAofAtheAtongueAinAtheAdigestiveAprocess.A-
AcorrectAanswersTheAtongueAgripsAtheAfood,AconstantlyArepositionsAitAbetweenAtheAteethAandAf


ormsAitAintoAaAcompactAmassAwhichAisApushedAbackAtoAtheApharynxAtoAbeginAtheAprocessAofAsw
allowing.

, WhatAisAaAbolus?A-
AcorrectAanswersAAbolusAisAtheAcompactAmassAofAfoodAformedAbyAtheAcombination AofAchewing


AbyAtheAteethAandArepositioningAbyAtheAtongue.



ListAtheA3ApartsAofAtheApharynx.A-
AcorrectAanswersTheApharynxAisAmadeAupAofAthreeAparts:AtheAnasopharynx,AtheAoropharynx,Aa


ndAtheAlaryngopharynx.

ThroughAwhatAsectionsAofAtheApharynxAdoesAairAtravel?AThroughAwhatAsectionsAofAtheApharynx
AdoesAfoodAtravel?A-


AcorrectAanswersAirAentersAtheAnose,AcontinuesAthroughAtheAnasopharynx,AoropharynxAandAth


eAlaryngopharynx.AAirAthenAentersAtheAtracheaAonAitsAwayAtoAtheAlungs.AFoodAandAliquidAenterA
theAmouth,AcontinueAthroughAtheAoropharynxAandAtheAlaryngopharynxAbutAthenAcontinueAint
oAtheAesophagus.

WhatApreventsAfoodAfromAenteringAtheAlungsAandAwhyAisAthisAnecessary?A-
AcorrectAanswersFoodAisApreventedAfromAenteringAtheAlarynxAbyAtheAepiglottis,AaAflapAofAelastic


AcartilageAwhichAcoversAtheAlarynxAwhenAswallowingAfoodAorAliquid.



DescribeAhowAtheAmuscularAlayersAinAtheApharynxAassistAwithAfoodApassage.A-
AcorrectAanswersTheApharynxAhasAtwoAtypesAofAskeletalAmuscles;AaAcircumferentialAouterAlayer


AandAanAinnerAlongitudinalAlayerAwhichAcontractAalternativelyAsqueezingAfoodAintoAtheAesopha


gus.

ListAandAdescribeAtheAtissueAlayersAofAtheAesophagus.A-
AcorrectAanswersTheAesophagusAcontainsA4AlayersAofAtissue:AtheAinnermostAlayerAisAtheAmucos


aAwhichAsecretesAmucusAintoAtheAinteriorAtheAgastrointestinalAtract,AtheAsecondAlayerAisAtheAsu
bmucosaAwhichAcontainsAbloodAandAlymphAvessels,AlymphAnodes,Anerves,AandAmucousAglands
,AtheAthirdAlayerAisAtheAmuscularisAexternaAwhichAisAmadeAofAtwoAlayersAofAmuscle:AtheAouterAl
ongitudinalAfibersAandAinnerAcircumferentialAfibersAandAtheAoutermostAlayerAisAtheAserosaAwhi
chAisAmadeAupAofAcellsAthatAmakeAserousAfluid.

ExplainAperistalsis.A-
AcorrectAanswersPeristalsisAisAtheAsqueezingAofAfoodAthroughAtheAGIAtractAbyAtheAalternatingAc


ontractionAofAtheAsetsAofAlongitudinalAandAcircumferentialAmuscles.

WhatAareAtheAthreeAmainAdivisionsAofAaAtooth?A-
AcorrectAanswersEachAtoothAisAmadeAofAthreeAmainAparts:AtheAcrown,AtheAneckAandAtheAroot



WhatAareAtheAthreeAtypesAofApapillaeAonAtheAtongue?AWhichAonesAcontainAtasteAbuds?A-
AcorrectAanswersThereAareAthreeAtypesAofApapillaeAwhichAhelpAtoAgripAfoodAonAtheAtongue:Acirc


umvallate,AfungiformAandAfiliform.ACircumvallateAandAfungiformApapillaeAbothAcontainAtasteAb
uds.

DescribeAtheAshapeAofAtheAstomachAandAitsAlocationArelativeAtoAtheAabdomenAandAdiaphragm.A
-

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