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Edition by Barbara J Aehlert Chap
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ters 1 - 10
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,ECGslMadelEasyl7thlEditionlbylBarbaralAehlertlTestlBank
TableloflContents:
Chapterl1.lAnatomyl&lPhysiology
Chapterl2.lBasiclElectrophysiology
Chapterl3.lSinuslMechanisms
Chapterl4.lAtriallRhythms
Chapterl5.lJunctionallRhythms
Chapterl6.lVentricularlRhythms
Chapterl7.lAtrioventricularlBlocks
Chapterl8.lPacemakerlRhythms
Chapterl9.lIntroductionltolthel12-LeadlECG
Chapterl10.lPost-Test
,Chapterl01:lAnatomylandlPhysiologylAehl
ert:lECGslMadelEasy,l7thlEdition
MULTIPLElCHOICE
1. Thelapexloflthelheartlislformedlbylthe .
a. tiploflthelleftlventricle
b. tiploflthelrightlatrium
c. rightlatriumlandlrightlventricle
d. leftlatriumlandlleftlventricle
ANSWER:l A
Thelheart’slapex,lorllowerlportion,lislformedlbyltheltiploflthelleftlventricle.lThelapexlliesljustlabov
eltheldiaphragm,lbetweenlthelfifthlandlsixthlribs,linlthelmidclavicularlline.
OBJ:l Identifylthelsurfacesloflthelheart.
2. Thelleftlatriumlreceiveslbloodlfromlthe .
a. pulmonarylveins
b. aorta
c. pulmonarylarteries
d. inferiorlvenalcava
ANSWER:l A
Thelleftlatriumlreceiveslfreshlyloxygenatedlbloodlfromlthellungslvialthelrightlandlleftlpulmonaryl
veins.
OBJ:l Identifylandldescribelthelchambersloflthelheartlandlthelvesselslthatlenterlorlleaveleach.
3. Thelanteriorlsurfaceloflthelheartlconsistslprimarilyloflthe .
a. leftlatrium
b. rightlatrium
c. leftlventricle
d. rightlventricle
ANSWER:l D
Thelfrontl(anterior)lsurfaceloflthelheartllieslbehindlthelsternumlandlcostallcartilages.lItlislformedl
bylportionsloflthelrightlatriumlandlthelleftlandlrightlventricles.lHowever,lbecauselthelheartlisltilte
dlslightlyltowardlthelleftlinlthelchest,lthelrightlventriclelislthelarealoflthelheartlthatllieslmostldirectl
ylbehindlthelsternum.
OBJ:l Identifylthelsurfacesloflthelheart.
4. Bloodlpressurelisldeterminedlby multipliedlby .
a. strokelvolume;lheartlrate
b. heartlrate;lcardiacloutput
c. cardiacloutput;lperipherallvascularlresistance
d. strokelvolume;lperipherallvascularlresistance
ANSWER:l C
Bloodlpressurelislequalltolcardiacloutputlmultipliedlbylperipherallvascularlresistance.
, OBJ:l Identifylandlexplainlthelcomponentsloflbloodlpressurelandlcardiacloutput.
5. Thelrightlatriumlreceiveslvenouslbloodlfromlthelhead,lneck,landlthoraxlvialthe
,lfromlthelremainderloflthelbodylvialthe
,landlfromlthelheartlvialthe .
a. coronarylsinus;lsuperiorlvenalcava;linferiorlvenalcava
b. superiorlvenalcava;lcoronarylsinus;linferiorlvenalcava
c. inferiorlvenalcava;lsuperiorlvenalcava;lcoronarylsinus
d. superiorlvenalcava;linferiorlvenalcava;lcoronarylsinus
ANSWER:l D
Thelrightlatriumlreceiveslbloodllowlinloxygenlfromlthelsuperiorlvenalcava,lwhichlcarrieslblood
lfromlthelheadlandlupperlextremities;lthelinferiorlvenalcava,lwhichlcarrieslbloodlfromlthellowerl
body;landlthelcoronarylsinus,lwhichlislthellargestlveinlthatldrainslthelheart.
OBJ:l Identifylandldescribelthelchambersloflthelheartlandlthelvesselslthatlenterlorlleaveleach.
6. Thelheartlisldividedlinto chamberslbutlfunctionslasla -sidedlpump.
a. two;lfour
b. three;ltwo
c. four;ltwo
d. four;lthree
ANSWER:l C
Thelheartlhaslfourlchambers:ltwolatrialandltwolventricles.lThelrightlandlleftlsidesloflthelheartlarels
eparatedlbylanlinternallwallloflconnectiveltissuelcalledlalseptum.lThelinteratriallseptumlseparates
lthelrightlandlleftlatria.lThelinterventricularlseptumlseparateslthelrightlandlleftlventricles.lThelsep
talseparatelthelheartlintoltwolfunctionallpumps.lThelrightlatriumlandlrightlventriclelmakeluplonel
pump.lThelleftlatriumlandlleftlventriclelmakeluplthelother.
OBJ:l Identifylandldescribelthelchambersloflthelheartlandlthelvesselslthatlenterlorlleaveleach.
7. Stimulationloflalpha1lreceptorslresultslin .
a. increasedlheartlrate
b. peripherallvasoconstriction
c. constrictionloflbronchiallsmoothlmuscle
d. increasedlforceloflmyocardiallcontraction
ANSWER:l B
Alpha1lreceptorslarelfoundlinltheleyes,lbloodlvessels,lbladder,landlmalelreproductivelorgans.lStimula
tionloflalpha1lreceptorlsiteslresultslinlconstriction.
OBJ:l Comparelandlcontrastltheleffectsloflsympatheticlandlparasympatheticlstimulationloflthelheart.
8. Whichlsideloflthelheartlisl allow-pressurelsystemlthatlpumpslvenouslbloodltolthellungs?
a. Left
b. Right
ANSWER:l B
Theljobloflthelrightlsideloflthelheartlisltolpumplunoxygenatedlbloodltolandlthroughlthellungsltolth
elleftlsideloflthelheart.lThislislcalledlthelpulmonarylcirculation.lThelrightlsideloflthelheartlislallow-
pressurelsystem.