TEST BANK For ECGs Made Easy, 7th Edition by Barbara J Aehlert, Verified Chapters 1 - 10, Complete

Test bank for ECGs Made Easy
7th Edition by Barbara
Chapter 1-10
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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 A
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ehlert: ECGs Made Easy, 7th Edition
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MULTIPLEsCHOICE

1. Thesapexsofsthesheartsissformedsbysthe .
a. tipsofsthesleftsventricle
b. tipsofsthesrightsatrium
c. rightsatriumsandsrightsventricle
d. leftsatriumsandsleftsventricle
ANSWER:s A
Thesheart’ssapex,sorslowersportion,sissformedsbysthestipsofsthesleftsventricle.sThesapexsliessjustsaboves
thesdiaphragm,sbetweensthesfifthsandssixthsribs,sinsthesmidclavicularsline.

OBJ:s Identifysthessurfacessofsthesheart.

2. Thesleftsatriumsreceivessbloodsfromsthe .
a. pulmonarysveins
b. aorta
c. pulmonarysarteries
d. inferiorsvenascava
ANSWER:s A
Thesleftsatriumsreceivessfreshlysoxygenatedsbloodsfromstheslungssviasthesrightsandsleftspulm
onarysveins.

OBJ:s Identifysandsdescribestheschamberssofsthesheartsandsthesvesselssthatsentersorsleaveseach.

3. Thesanteriorssurfacesofsthesheartsconsistssprimarilysofsthe .
a. leftsatrium
b. rightsatrium
c. leftsventricle
d. rightsventricle
ANSWER:s D
Thesfronts(anterior)ssurfacesofsthesheartsliessbehindsthessternumsandscostalscartilages.sItsissformedsbys
portionssofsthesrightsatriumsandsthesleftsandsrightsventricles.sHowever,sbecausesthesheartsisstiltedssligh
tlystowardsthesleftsinstheschest,sthesrightsventriclesissthesareasofsthesheartsthatsliessmostsdirectlysbehindst
hessternum.

OBJ:s Identifysthessurfacessofsthesheart.

4. Bloodspressuresissdeterminedsby multipliedsby .
a. strokesvolume;sheartsrate
b. heartsrate;scardiacsoutput
c. cardiacsoutput;speripheralsvascularsresistance
d. strokesvolume;speripheralsvascularsresistance
ANSWER:s C
Bloodspressuresissequalstoscardiacsoutputsmultipliedsbysperipheralsvascularsresistance.

, OBJ:s Identifysandsexplainsthescomponentssofsbloodspressuresandscardiacsoutput.

5. Thesrightsatriumsreceivessvenoussbloodsfromstheshead,sneck,sandsthoraxsviasthe
,sfromsthesremaindersofsthesbodysviasthe
,sandsfromsthesheartsviasthe .
a. coronaryssinus;ssuperiorsvenascava;sinferiorsvenascava
b. superiorsvenascava;scoronaryssinus;sinferiorsvenascava
c. inferiorsvenascava;ssuperiorsvenascava;scoronaryssinus
d. superiorsvenascava;sinferiorsvenascava;scoronaryssinus
ANSWER:s D
Thesrightsatriumsreceivessbloodslowsinsoxygensfromsthessuperiorsvenascava,swhichscarriessbloodsfr
omsthesheadsandsuppersextremities;sthesinferiorsvenascava,swhichscarriessbloodsfromstheslowersbo
dy;sandsthescoronaryssinus,swhichsisstheslargestsveinsthatsdrainssthesheart.

OBJ:s Identifysandsdescribestheschamberssofsthesheartsandsthesvesselssthatsentersorsleaveseach.

6. Thesheartsissdividedsinto chamberssbutsfunctionssassa -sidedspump.
a. two;sfour
b. three;stwo
c. four;stwo
d. four;sthree
ANSWER:s C
Thesheartshassfourschambers:stwosatriasandstwosventricles.sThesrightsandsleftssidessofsthesheartsaresse
paratedsbysansinternalswallsofsconnectivestissuescalledsasseptum.sThesinteratrialsseptumsseparatesst
hesrightsandsleftsatria.sThesinterventricularsseptumsseparatessthesrightsandsleftsventricles.sThesseptas
separatesthesheartsintostwosfunctionalspumps.sThesrightsatriumsandsrightsventriclesmakesupsonespum
p.sThesleftsatriumsandsleftsventriclesmakesupsthesother.

OBJ:s Identifysandsdescribestheschamberssofsthesheartsandsthesvesselssthatsentersorsleaveseach.

7. Stimulationsofsalpha1sreceptorssresultssin .
a. increasedsheartsrate
b. peripheralsvasoconstriction
c. constrictionsofsbronchialssmoothsmuscle
d. increasedsforcesofsmyocardialscontraction

ANSWER:s B
Alpha1sreceptorssaresfoundsinstheseyes,sbloodsvessels,sbladder,sandsmalesreproductivesorgans.sSti
mulationsofsalpha1sreceptorssitessresultssinsconstriction.

OBJ:s Comparesandscontraststheseffectssofssympatheticsandsparasympatheticsstimulationsofsthesheart.

8. Whichssidesofsthesheartsissaslow-pressuressystemsthatspumpssvenoussbloodstostheslungs?
a. Left
b. Right
ANSWER:s B
Thesjobsofsthesrightssidesofsthesheartsisstospumpsunoxygenatedsbloodstosandsthroughstheslungsstosthesl
eftssidesofsthesheart.sThississcalledsthespulmonaryscirculation.sThesrightssidesofsthesheartsissaslow-
pressuressystem.