7th Edition by Barbara J Aehlert
Chapters 1 - 10
,ECGs Made Easy 7th Edition by Barbara Aehlert Test Bank
Table of Contents:
Chapter 1. Anatomy & Physiology
Chapter 2. Basic Electrophysiology
Chapter 3. Sinus Mechanisms
Chapter 4. Atrial Rhythms
Chapter 5. Junctional Rhythms
Chapter 6. Ventricular Rhythms
Chapter 7. Atrioventricular Blocks
Chapter 8. Pacemaker Rhythms
Chapter 9. Introduction to the 12-Lead ECG
Chapter 10. Post-Test
,Chapter 01: Anatomy and Physiology
Aehlert: ECGs Made Easy, 7th Edition
MULTIPLE CHOICE
1. The apex of the heart is formed by the .
a. tip of the left ventricle
b. tip of the right atrium
c. right atrium and right ventricle
d. left atrium and left ventricle
ANSWER: A
The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The apex lies
justabove the diaphragm, between the fifth and sixth ribs, in the midclavicular line.
OBJ: Identify the surfaces of the heart.
2. The left atrium receives blood from the .
a. pulmonary veins
b. aorta
c. pulmonary arteries
d. inferior vena cava
ANSWER: A
The left atrium receives freshly oxygenated blood from the lungs via the right and
leftpulmonary veins.
OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
3. The anterior surface of the heart consists primarily of the .
a. left atrium
b. right atrium
c. left ventricle
d. right ventricle
ANSWER: D
The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is
formed by portions of the right atrium and the left and right ventricles. However, because
the heart is tilted slightly toward the left in the chest, the right ventricle is the area of the
heart thatlies most directly behind the sternum.
OBJ: Identify the surfaces of the heart.
4. Blood pressure is determined by multiplied by .
a. stroke volume; heart rate
b. heart rate; cardiac output
c. cardiac output; peripheral vascular resistance
d. stroke volume; peripheral vascular resistance
ANSWER: C
Blood pressure is equal to cardiac output multiplied by peripheral vascular resistance.
, OBJ: z Identify zand zexplain zthe zcomponents zof zblood zpressure zand zcardiac zoutput.
5. The zright zatrium zreceives zvenous zblood zfrom zthe zhead, zneck, zand zthorax zvia zthe ,
zfromzthe zremainder zof zthe zbody zvia zthe , zand zfrom zthe
zheart zvia zthe .
a. coronary zsinus; zsuperior zvena zcava; zinferior zvena zcava
b. superior zvena zcava; zcoronary zsinus; zinferior zvena zcava
c. inferior zvena zcava; zsuperior zvena zcava; zcoronary zsinus
d. superior zvena zcava; zinferior zvena zcava; zcoronary zsinus
ANSWER: z D
The zright zatrium zreceives zblood zlow zin zoxygen zfrom zthe zsuperior zvena zcava, zwhich
zcarries zblood zfrom zthe zhead zand zupper zextremities; zthe zinferior zvena zcava, zwhich
zcarries zblood zfromzthe zlower zbody; zand zthe zcoronary zsinus, zwhich zis zthe zlargest zvein
zthat zdrains zthe zheart.
OBJ: z Identify zand zdescribe zthe zchambers zof zthe zheart zand zthe zvessels zthat zenter zor zleave zeach.
6. The zheart zis zdivided zinto chambers zbut zfunctions zas za -sided zpump.
a. two; zfour
b. three; ztwo
c. four; ztwo
d. four; zthree
ANSWER: z C
The zheart zhas zfour zchambers: ztwo zatria zand ztwo zventricles. zThe zright zand zleft zsides zof
zthe zheartzare zseparated zby zan zinternal zwall zof zconnective ztissue zcalled za zseptum. zThe
zinteratrial zseptum zseparates zthe zright zand zleft zatria. zThe zinterventricular zseptum
zseparates zthe zright zand zleft zventricles. zThe zsepta zseparate zthe zheart zinto ztwo
zfunctional zpumps. zThe zright zatrium zand zright zventricle zmake zup zone zpump. zThe zleft
zatrium zand zleft zventricle zmake zup zthe zother.
OBJ: z Identify zand zdescribe zthe zchambers zof zthe zheart zand zthe zvessels zthat zenter zor zleave zeach.
7. Stimulation zof zalpha1 zreceptors zresults zin .
a. increased zheart zrate
b. peripheral zvasoconstriction
c. constriction zof zbronchial zsmooth zmuscle
d. increased zforce zof zmyocardial zcontraction
ANSWER: z B
Alpha1 zreceptors zare zfound zin zthe zeyes, zblood zvessels, zbladder, zand zmale zreproductive
zorgans.zStimulation zof zalpha1 zreceptor zsites zresults zin zconstriction.
OBJ: z Compare zand zcontrast zthe zeffects zof zsympathetic zand zparasympathetic zstimulation zof zthe
zheart.
8. Which zside zof zthe zheart zis za zlow-pressure zsystem zthat zpumps zvenous zblood zto zthe zlungs?
a. Left
b. Right
ANSWER: z B
The zjob zof zthe zright zside zof zthe zheart zis zto zpump zunoxygenated zblood zto zand zthrough