TEST BANK FOR ECGs Made Easy, 7th Edition by Barbara J Aehlert ISBN: 9780323832939 COMPLETE GUIDE ALL CHAPTERS COVERED 100% VERIFIED A+ GRADE ASSURED!!!!! NEW LATEST UPDATE!!!!!

,ECGsMadeEasy7thEditionbyBarbaraAehlertTestBank Table o
th th th th th ht tj




fContents:
jt




Chapter1.Anatomy&Physiology Chapte ht tj




r2.BasicElectrophysiology Chapter3.Sin
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usMechanisms Chapter4.AtrialRhythms
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Chapter5.JunctionalRhythms Chapter6. tj




VentricularRhythms Chapter7.Atriovent tj




ricularBlocks Chapter8.PacemakerRhyt tj




hms Chapter9.Introduction to the12-
tj tj tj tj




Lead ECG Chapter10.Post-Test
tj tj

,Chapter01:AnatomyandPhysiology A ehlert:E
jt jt jt tj tj ht




CGsMadeEasy,7thEdition
ht ht ht




MULTIPLE CHOICE tj




1. Theapex of theheart is formed bythe tj tj tj ht tj .
a. tipof theleft ventricle tj ht tj 1tj



b. tip of theright atrium tj ht tj ht



c. rightatrium and right ventricle tj tj ht



d. leftatriumandleftventricle tj tj tj




ANSWER: A t j


Theheart’sapex,orlowerportion,isformed bythetipoftheleftventricle.Theapex lies just ab ove t h ht tj tj tj tj tj tj


e diaphragm, between the fifth and sixth ribs, in the midclavicular line.
tj tj tj tj tj tj ht tj tj tj tj




OBJ: Identifythe surfacesoftheheart.
t j ht tj tj tj




2. Theleft atriumreceives blood fromthe ht tj tj tj tj .
a. pulmonaryveins
b. aorta
c. pulmonaryarteries
d. inferiorvenacava tj




ANSWER: A t j


Theleft atrium receivesfreshlyoxygenated blood from the lungs viatheright and left pulmona ry v ei
tj ht ht tj tj ht tj ht tj tj tj tj tj


ns.

OBJ: Identifyand describethechambers oftheheart andthevesselsthat enterorleaveeach.
tj tj tj ht tj ht tj tj tj tj tj




3. Theanteriorsurface ofthe heart consists primarilyofthe tj tj ht tj tj .
a. left atrium ht



b. right atrium ht



c. left ventricle ht



d. right ventricle ht




ANSWER: D t j


The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is form ed by p
tj tj tj tj tj tj tj tj tj tj tj tj tj tj tj tj tj tj tj


ortions of the right atrium and the left and right ventricles. However, because the heart is tilt ed sligh
tj tj tj tj ht tj tj tj ht ht tj tj tj tj ht tj tj tj


tlytoward theleft in thechest, theright ventricle is thearea of theheart that lies m ost directl y behind t
tj tj tj tj tj tj tj tj tj ht tj tj tj tj tj tj tj


he sternum.
tj




OBJ: Identifythe surfacesoftheheart.
t j ht tj tj tj




4. Bloodpressureis determinedby tj multiplied by ht tj tj .
a. strokevolume;heartrate tj tj


b. heartrate;cardiac output tj


c. cardiacoutput; peripheral vascularresistance tj tj tj


d. strokevolume;peripheralvascularresistance

ANSWER: C t j


Bloodpressureisequal to cardiac output multiplied byperipheralvascular resistance. tj ht ht tj tj tj tj

, OBJ: Identifyandexplainthe componentsofblood pressureand cardiacoutput.
tj tj tj tj tj tj ht tj




5. Theright atrium receives venous blood from the head, neck, and thorax via the
tj ht tj tj tj tj tj tj tj tj tj tj tj


,fromthe remainder ofthe body via the ht tj tj tj tj tj tj ht



,and from the heart via the . tj tj tj tj tj tj


a. coronarysinus;superiorvenacava;inferiorvenacava tj tj tj tj tj


b. superiorvenacava;coronarysinus; inferiorvena cava tj tj tj tj


c. inferiorvenacava; superiorvenacava; coronarysinus tj tj tj tj


d. superiorvena cava; inferiorvena cava; coronarysinus ht tj tj tj




ANSWER: D t j


The right atrium receives blood low in oxygen from the superior vena cava, which carries bl oo d fr
tj tj tj tj ht tj 1tj tj tj tj tj tj tj tj tj tj tj ht



omtheheadandupperextremities;theinferiorvena cava,whichcarriesblood from the lower bod 1t j ht tj tj tj


y; and the coronary sinus, which is the largest vein that drains the heart.
tj tj tj tj tj tj tj tj tj tj tj tj tj




OBJ: Identifyand describethechambersoftheheartand thevesselsthatenterorleave each.
tjtj tj tj tj tj tj tj ht tj tj tj tj tj ht




6. Theheartisdivided into tj tj tj chambers but functionsas a ht tj tj tj -sidedpump. tj


a. two; four tj


b. three;two tj


c. four;two tj


d. four;three

ANSWER: C t j


Theheart has fourchambers:two atriaandtwoventricles.Theright and left sidesofthe heart ar e sep
tj ht ht ht ht ht ht ht tj tj tj


arated by an internal wall of connective tissue called a septum. The interatrial septum sep arates t he r
tj tj tj tj tj tj tj tj tj tj tj ht tj tj tj tj tj tj


ight and left atria. Theinterventricular septum separates the right and left ventricles
ht tj tj tj tj tj tj tj tj tj tj tj


. The septa separate the heart into two functional pumps. The right atrium and right ventricle m ak
tj tj tj tj tj ht tj ht tj tj tj tj tj tj tj tj tj


e up one pump. The left atrium and left ventricle make up the other.
tj tj tj tj tj tj tj tj tj tj tj tj tj




OBJ: Identifyand describethechambers oftheheart andthevesselsthat enterorleaveeach.
tj tj tj ht tj ht tj tj tj tj tj




7. Stimulation ofalpha1 receptorsresults in ht tj tj .
a. increasedheart rate tj ht



b. peripheral vasoconstriction tj


c. constrictionof bronchial smooth muscle ht tj tj


d. increased forceofmyocardial contraction 1tj tj




ANSWER: B t j


Alpha1receptors arefoundin the eyes, blood vessels, bladder, and malereproductive organs. Stimu lati on
tj tj tj tj tj ht tj tj tj ht ht tj ht tj tj tj tj


of alpha1 receptor sites results in constriction.
tj tj tj tj tj tj




OBJ: Compareand contrast theeffects ofsympatheticand parasympatheticstimulation oftheheart.
tj ht 1a ht tj tj tj tj tj tj




8. Which sideoftheheartis a low-pressuresystemthat pumpsvenous blood to the lungs?
1tj tj tj tj tj ht tj ht tj tj ht ht ht



a. Left
b. Right

ANSWER: B t j


Thejob ofthe right sideofthe heart is to pump unoxygenated blood to andthrough the lungs t oth elefts
tj tj tj tj tj tj tj tj tj tj tj ht ht tj tj tj tj tj tj tj tj


ideoftheheart.This iscalled thepulmonarycirculation.Theright side of theheart is a low- ht ht ht ht ht tj tj tj


pressure system. tj