BIOD 152 MODULE 4 GRADE A+
COMPLETE EXAM QUESTIONS AND
100% VERIFIED ANSWERS (2026/2027)
PASS GUARANTEE
howRisRtheRcardiovascularRsystemRaRclosedRsystem?R-
RCORRECTRANSWERfluidRcontentsRareRpumpedRfromRtheRheartRthroughoutRtheRbodyRandRback
whatRdoesRtheRcardiovascularRsystemRconsistRof?R-RCORRECTRANSWERheart,RbloodRvessels,Rblood
functionsRofRtheRcardiovascularRsystemR-RCORRECTRANSWER-
transportingRgases,Rnutrients,RandRwastes
-preventingRbloodRlossRfromRrupturedRvesselsRthroughRclottingRmechanisms
-fightingRforeignRpathogens
whatRisRtheRthoracicRcavityRseparatedRby?R-RCORRECTRANSWER-theRmediastinumRinRtheRmiddle
-betweenRtheRtwoRlateralRpleuralRcavities
describeRtheRpericardiumR-RCORRECTRANSWER-tough,RthickRsacRthatRenclosesRtheRheart
-protectsRandRanchorsRitRtoRtheRdiaphragm
-innerRandRouterRlayersRareRcoveredRbyRaRsmoothRlayerRofRendothelium
-lubricatingRfluidRbetweenRtheRlayersRallowsRtheRheartRtoRslideRaroundRwithRlittleRfriction
whatRisRtheRmyocardium?R-RCORRECTRANSWER-bulkRofRtheRheart
-composedRofRcardiacRmuscleRandRisRtheRlayerRthatRcontracts
-
muscleRfibersRareRhighlyRbranchedRandRattachedRbyRcollagenRconnectiveRtissueRwhichRlinkRallRparts
RofRtheRheartRtogether
, endocardiumR-
RCORRECTRANSWERaRwhiteRsheetRofRendotheliumRthatRlinesRtheRheartRandRisRcontinuousRwithRblo
odRvesselRlinings
whyRareRtheRatriaRsmallerRandRlessRmuscularRthanRtheRventricles?R-
RCORRECTRANSWERventriclesRmustRforceRtheRbloodRthroughRvesselsRtoRdistantRpartsRofRtheRbody
fossaRovalisR-RCORRECTRANSWER-shallowRdepressionRatRtheRseptumRseparatingRtheRatria
-marksRtheRplaceRofRanRopeningRbetweenRtheRatriaRwhichRisRpresentRinRallRdevelopingRfetuses
-allowsRfetalRbloodRtoRmoveRdirectlyRfromRrightRtoRleftRatrium,RbypassingRundevelopedRlungs
-closesRduringRbirthRsoRlungsRcanRoxygenateRonceRbabyRisRborn
semilunarRvalvesR-RCORRECTRANSWER-
pulmonaryRvalve:RcontrolsRflowRleavingRtheRrightRventricleRintoRtheRpulmonaryRtrunk
-
aorticRvalve:RcontrolsRflowRoutRofRtheRletRventricleRintoRtheRaortaR(strongerRthanRpulmonaryRb/cRsy
stemic)
atrioventricularRvalvesR-RCORRECTRANSWER-
mitralR(bicuspid)Rvalve:RcontrolsRflowRfromRtheRleftRatriumRtoRleftRventricle
-tricuspidRvalve:RcontrolsRflowRfromRtheRrightRatriumRtoRrightRventricle
whatRareRarteries?R-RCORRECTRANSWERelastic,Rthick-
walledRvesselsRthatRcanRexpandRandRcontractRtoRaccommodateRtheRlargerRbloodRvolumeRflowingRfr
omRtheRheartRatRtheRendRofReachRbeat
howRareRarteriolesRimpactedRbyRtheRSNSRandRPSNS?R-RCORRECTRANSWER-
constrictedRandRdilatedRbyRmusclesRcontrollingRtheRNSRwhichRcontrolRBP
COMPLETE EXAM QUESTIONS AND
100% VERIFIED ANSWERS (2026/2027)
PASS GUARANTEE
howRisRtheRcardiovascularRsystemRaRclosedRsystem?R-
RCORRECTRANSWERfluidRcontentsRareRpumpedRfromRtheRheartRthroughoutRtheRbodyRandRback
whatRdoesRtheRcardiovascularRsystemRconsistRof?R-RCORRECTRANSWERheart,RbloodRvessels,Rblood
functionsRofRtheRcardiovascularRsystemR-RCORRECTRANSWER-
transportingRgases,Rnutrients,RandRwastes
-preventingRbloodRlossRfromRrupturedRvesselsRthroughRclottingRmechanisms
-fightingRforeignRpathogens
whatRisRtheRthoracicRcavityRseparatedRby?R-RCORRECTRANSWER-theRmediastinumRinRtheRmiddle
-betweenRtheRtwoRlateralRpleuralRcavities
describeRtheRpericardiumR-RCORRECTRANSWER-tough,RthickRsacRthatRenclosesRtheRheart
-protectsRandRanchorsRitRtoRtheRdiaphragm
-innerRandRouterRlayersRareRcoveredRbyRaRsmoothRlayerRofRendothelium
-lubricatingRfluidRbetweenRtheRlayersRallowsRtheRheartRtoRslideRaroundRwithRlittleRfriction
whatRisRtheRmyocardium?R-RCORRECTRANSWER-bulkRofRtheRheart
-composedRofRcardiacRmuscleRandRisRtheRlayerRthatRcontracts
-
muscleRfibersRareRhighlyRbranchedRandRattachedRbyRcollagenRconnectiveRtissueRwhichRlinkRallRparts
RofRtheRheartRtogether
, endocardiumR-
RCORRECTRANSWERaRwhiteRsheetRofRendotheliumRthatRlinesRtheRheartRandRisRcontinuousRwithRblo
odRvesselRlinings
whyRareRtheRatriaRsmallerRandRlessRmuscularRthanRtheRventricles?R-
RCORRECTRANSWERventriclesRmustRforceRtheRbloodRthroughRvesselsRtoRdistantRpartsRofRtheRbody
fossaRovalisR-RCORRECTRANSWER-shallowRdepressionRatRtheRseptumRseparatingRtheRatria
-marksRtheRplaceRofRanRopeningRbetweenRtheRatriaRwhichRisRpresentRinRallRdevelopingRfetuses
-allowsRfetalRbloodRtoRmoveRdirectlyRfromRrightRtoRleftRatrium,RbypassingRundevelopedRlungs
-closesRduringRbirthRsoRlungsRcanRoxygenateRonceRbabyRisRborn
semilunarRvalvesR-RCORRECTRANSWER-
pulmonaryRvalve:RcontrolsRflowRleavingRtheRrightRventricleRintoRtheRpulmonaryRtrunk
-
aorticRvalve:RcontrolsRflowRoutRofRtheRletRventricleRintoRtheRaortaR(strongerRthanRpulmonaryRb/cRsy
stemic)
atrioventricularRvalvesR-RCORRECTRANSWER-
mitralR(bicuspid)Rvalve:RcontrolsRflowRfromRtheRleftRatriumRtoRleftRventricle
-tricuspidRvalve:RcontrolsRflowRfromRtheRrightRatriumRtoRrightRventricle
whatRareRarteries?R-RCORRECTRANSWERelastic,Rthick-
walledRvesselsRthatRcanRexpandRandRcontractRtoRaccommodateRtheRlargerRbloodRvolumeRflowingRfr
omRtheRheartRatRtheRendRofReachRbeat
howRareRarteriolesRimpactedRbyRtheRSNSRandRPSNS?R-RCORRECTRANSWER-
constrictedRandRdilatedRbyRmusclesRcontrollingRtheRNSRwhichRcontrolRBP