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h Edition by Barbara J Aehlert Ch
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apters 1 - 10
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,ECGs Made Easy 7th Edition by Barbara Aehlert Test Bank
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Table of Contents:
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Chapter 1. Anatomy & Physiology
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Chapter 2. Basic Electrophysiology
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Chapter 3. Sinus Mechanisms
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Chapter 4. Atrial Rhythms
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Chapter 5. Junctional Rhythms
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Chapter 6. Ventricular Rhythms
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Chapter 7. Atrioventricular Blocks
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Chapter 8. Pacemaker Rhythms
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Chapter 9. Introduction to the 12-Lead ECG
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Chapter 10. Post-Test
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,Chapter 01: Anatomy and Physiology Aeh
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lert: ECGs Made Easy, 7th Edition
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MULTIPLEoCHOICE
1. Theoapexoofotheoheartoisoformedobyothe .
a. tipoofotheoleftoventricle
b. tipoofotheorightoatrium
c. rightoatriumoandorightoventricle
d. leftoatriumoandoleftoventricle
ANSWER:o A
Theoheart’soapex,ooroloweroportion,oisoformedobyotheotipoofotheoleftoventricle.oTheoapexoliesojustoab
oveotheodiaphragm,obetweenotheofifthoandosixthoribs,oinotheomidclavicularoline.
OBJ:o Identifyotheosurfacesoofotheoheart.
2. Theoleftoatriumoreceivesobloodofromothe .
a. pulmonaryoveins
b. aorta
c. pulmonaryoarteries
d. inferiorovenaocava
ANSWER:o A
Theoleftoatriumoreceivesofreshlyooxygenatedobloodofromotheolungsoviaotheorightoandoleftopulmonar
yoveins.
OBJ:o Identifyoandodescribeotheochambersoofotheoheartoandotheovesselsothatoenterooroleaveoeach.
3. Theoanteriorosurfaceoofotheoheartoconsistsoprimarilyoofothe .
a. leftoatrium
b. rightoatrium
c. leftoventricle
d. rightoventricle
ANSWER:o D
Theofronto(anterior)osurfaceoofotheoheartoliesobehindotheosternumoandocostalocartilages.oItoisoforme
dobyoportionsoofotheorightoatriumoandotheoleftoandorightoventricles.oHowever,obecauseotheoheartoiso
tiltedoslightlyotowardotheoleftoinotheochest,otheorightoventricleoisotheoareaoofotheoheartothatoliesomosto
directlyobehindotheosternum.
OBJ:o Identifyotheosurfacesoofotheoheart.
4. Bloodopressureoisodeterminedoby multipliedoby .
a. strokeovolume;oheartorate
b. heartorate;ocardiacooutput
c. cardiacooutput;operipheralovascularoresistance
d. strokeovolume;operipheralovascularoresistance
ANSWER:o C
Bloodopressureoisoequalotoocardiacooutputomultipliedobyoperipheralovascularoresistance.
, OBJ:o Identifyoandoexplainotheocomponentsoofobloodopressureoandocardiacooutput.
5. Theorightoatriumoreceivesovenousobloodofromotheohead,oneck,oandothoraxoviaothe
,ofromotheoremainderoofotheobodyoviaothe
,oandofromotheoheartoviaothe .
a. coronaryosinus;osuperiorovenaocava;oinferiorovenaocava
b. superiorovenaocava;ocoronaryosinus;oinferiorovenaocava
c. inferiorovenaocava;osuperiorovenaocava;ocoronaryosinus
d. superiorovenaocava;oinferiorovenaocava;ocoronaryosinus
ANSWER:o D
Theorightoatriumoreceivesobloodolowoinooxygenofromotheosuperiorovenaocava,owhichocarriesoblo
odofromotheoheadoandoupperoextremities;otheoinferiorovenaocava,owhichocarriesobloodofromotheol
owerobody;oandotheocoronaryosinus,owhichoisotheolargestoveinothatodrainsotheoheart.
OBJ:o Identifyoandodescribeotheochambersoofotheoheartoandotheovesselsothatoenterooroleaveoeach.
6. Theoheartoisodividedointo chambersobutofunctionsoasoa -sidedopump.
a. two;ofour
b. three;otwo
c. four;otwo
d. four;othree
ANSWER:o C
Theoheartohasofourochambers:otwooatriaoandotwooventricles.oTheorightoandoleftosidesoofotheoheartoar
eoseparatedobyoanointernalowalloofoconnectiveotissueocalledoaoseptum.oTheointeratrialoseptumosepa
ratesotheorightoandoleftoatria.oTheointerventricularoseptumoseparatesotheorightoandoleftoventricles.o
Theoseptaoseparateotheoheartointootwoofunctionalopumps.oTheorightoatriumoandorightoventricleoma
keoupooneopump.oTheoleftoatriumoandoleftoventricleomakeoupotheoother.
OBJ:o Identifyoandodescribeotheochambersoofotheoheartoandotheovesselsothatoenterooroleaveoeach.
7. Stimulationoofoalpha1oreceptorsoresultsoin .
a. increasedoheartorate
b. peripheralovasoconstriction
c. constrictionoofobronchialosmoothomuscle
d. increasedoforceoofomyocardialocontraction
ANSWER:o B
Alpha1oreceptorsoareofoundoinotheoeyes,obloodovessels,obladder,oandomaleoreproductiveoorgans.oStimul
ationoofoalpha1oreceptorositesoresultsoinoconstriction.
OBJ:oCompareoandocontrastotheoeffectsoofosympatheticoandoparasympatheticostimulationoofotheoheart.
8. Whichosideoofotheoheartoisoaolow-pressureosystemothatopumpsovenousobloodotootheolungs?
a. Left
b. Right
ANSWER:o B
Theojoboofotheorightosideoofotheoheartoisotoopumpounoxygenatedobloodotooandothroughotheolungsotoo
theoleftosideoofotheoheart.oThisoisocalledotheopulmonaryocirculation.oTheorightosideoofotheoheartoisoao
low-pressureosystem.