EST BANK For ECGs Made Easy, 7th Edition by Barbara J Aehlert, All Chapters 1 - 10, Complete Newest Version TEST BANK For ECGs Made Easy, 7th Edition TEST BANK For ECGs Made Easy, 7th Edition All Chapters ECGs Made Easy, 7th Edition Chapters 1 - 10 ECGs Made Easy, 7th Edition by Barbara J Aehlert p...
1. Thezapexzofzthezheartziszformedzbyzthe .
a. tipzofzthezleftzventricle
b. tipzofzthezrightzatrium
c. rightzatriumzandzrightzventricle
d. leftzatriumzandzleftzventricle
ANSWER:z A
Thezheart’szapex,zorzlowerzportion,ziszformedzbyztheztipzofzthezleftzventricle.zThezapexzlieszjustz
abovezthezdiaphragm,zbetweenzthezfifthzandzsixthzribs,zinzthezmidclavicularzline.
OBJ:z Identifyzthezsurfaceszofzthezheart.
2. Thezleftzatriumzreceiveszbloodzfromzthe .
a. pulmonaryzveins
b. aorta
c. pulmonaryzarteries
d. inferiorzvenazcava
ANSWER:z A
Thezleftzatriumzreceiveszfreshlyzoxygenatedzbloodzfromzthezlungszviazthezrightzandzleftz
pulmonaryzveins.
3. Thezanteriorzsurfacezofzthezheartzconsistszprimarilyzofzthe .
a. leftzatrium
b. rightzatrium
c. leftzventricle
d. rightzventricle
ANSWER:z D
Thezfrontz(anterior)zsurfacezofzthezheartzlieszbehindzthezsternumzandzcostalzcartilages.zItziszfor
medzbyzportionszofzthezrightzatriumzandzthezleftzandzrightzventricles.zHowever,zbecausezthezhe
artzisztiltedzslightlyztowardzthezleftzinzthezchest,zthezrightzventricleziszthezareazofzthezheartzthatzli
eszmostzdirectlyzbehindzthezsternum.
OBJ:z Identifyzthezsurfaceszofzthezheart.
4. Bloodzpressureziszdeterminedzby multipliedzby .
a. strokezvolume;zheartzrate
b. heartzrate;zcardiaczoutput
c. cardiaczoutput;zperipheralzvascularzresistance
d. strokezvolume;zperipheralzvascularzresistance
ANSWER:z C
Bloodzpressureziszequalztozcardiaczoutputzmultipliedzbyzperipheralzvascularzresistance.
5. Thezrightzatriumzreceiveszvenouszbloodzfromzthezhead,zneck,zandzthoraxzviazthe
,zfromzthezremainderzofzthezbodyzviazthe
,zandzfromzthezheartzviazthe .
a. coronaryzsinus;zsuperiorzvenazcava;zinferiorzvenazcava
b. superiorzvenazcava;zcoronaryzsinus;zinferiorzvenazcava
c. inferiorzvenazcava;zsuperiorzvenazcava;zcoronaryzsinus
d. superiorzvenazcava;zinferiorzvenazcava;zcoronaryzsinus
ANSWER:z D
Thezrightzatriumzreceiveszbloodzlowzinzoxygenzfromzthezsuperiorzvenazcava,zwhichzcarrieszbl
oodzfromzthezheadzandzupperzextremities;zthezinferiorzvenazcava,zwhichzcarrieszbloodzfromzt
hezlowerzbody;zandzthezcoronaryzsinus,zwhichziszthezlargestzveinzthatzdrainszthezheart.
6. Thezheartziszdividedzinto chamberszbutzfunctionszasza -sidedzpump.
a. two;zfour
b. three;ztwo
c. four;ztwo
d. four;zthree
ANSWER:z C
Thezheartzhaszfourzchambers:ztwozatriazandztwozventricles.zThezrightzandzleftzsideszofzthezhear
tzarezseparatedzbyzanzinternalzwallzofzconnectiveztissuezcalledzazseptum.zThezinteratrialzseptu
mzseparateszthezrightzandzleftzatria.zThezinterventricularzseptumzseparateszthezrightzandzleftz
ventricles.zThezseptazseparatezthezheartzintoztwozfunctionalzpumps.zThezrightzatriumzandzrigh
tzventriclezmakezupzonezpump.zThezleftzatriumzandzleftzventriclezmakezupzthezother.
7. Stimulationzofzalpha1zreceptorszresultszin .
a. increasedzheartzrate
b. peripheralzvasoconstriction
c. constrictionzofzbronchialzsmoothzmuscle
d. increasedzforcezofzmyocardialzcontraction
ANSWER:z B
Alpha1zreceptorszarezfoundzinzthezeyes,zbloodzvessels,zbladder,zandzmalezreproductivezorgan
s.zStimulationzofzalpha1zreceptorzsiteszresultszinzconstriction.
8. Whichzsidezofzthezheartziszazlow-pressurezsystemzthatzpumpszvenouszbloodztozthezlungs?
a. Left
b. Right
ANSWER:z B
Thezjobzofzthezrightzsidezofzthezheartzisztozpumpzunoxygenatedzbloodztozandzthroughzthezlungs
ztozthezleftzsidezofzthezheart.zThisziszcalledzthezpulmonaryzcirculation.zThezrightzsidezofzthezheartz
iszazlow-pressurezsystem.
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