Chapter 1 Electrophysiology
1) The inherent rate of the SA node is bpm.
A) 30-60
B) 40-60
C) 60-100
D) 100-120
Answer: C
Page Ref: 6
Learning Obj.: 1.3
2) The inherent rate of the AV junction is bpm.
A) 20-40
B) 40-60
C) 60-100
D) 100-120
Answer: B
Page Ref: 6
Learning Obj.: 1.3
3) The inherent rate of the ventricle is bpm.
A) 20-40
B) 40-60
C) 60-100
D) 100-120
Answer: A
Page Ref: 6
Learning Obj.: 1.3
4) The built-in rate of each of the three major areas of the conduction system is referred to as the
rate.
A) fast
B) heart
C) escape
D) inherent
Answer: D
Page Ref: 6
Learning Obj.: 1.3
1
Copyright #xf© #xf2017 #xfPearson
#xfEducation, #xfInc.
SCHOLARVAULT
,5) What #xfterm #xfis #xfused #xfto #xfrefer #xfto #xfthe #xfprocess #xfof #xfelectrical #xfdischarge #xfand #xfthe
#xfflow #xfof #xfelectrical #xfactivity?
A) Repolarization
B) Depolarization
C) Polarization
D) Polarized
#xfAnswer:
# x f B #xfPage
#xfRef: #xf4
Learning #xfObj.: # x f 1.2
6) If #xfpolarizing #xfis #xfconsidered #xfthe #xfready #xfstate, #xfthen #xf would #xfbe #xfconsidered #xfthe
#xfrecovery #xfstate.
A) discharge
B) polarization
C) repolarization
D) depolarization
#xfAnswer: # x f C
Page #xfRef: #xf4
Learning #xfObj.: # x f 1.2
7) After #xfleaving #xfthe #xfarea #xfof #xfthe #xfAV #xfnode, #xfimpulses #xfgo #xfthrough #xfthe #xf to #xfreach
#xfthe #xfright #xfand #xfleft #xfbundle #xfbranches.
A) Purkinje #xffibers
B) Bundle #xfof #xfHis
C) AV #xfjunction
D) SA
#xfnode
#xfAnswer:
#xfB #xfPage
#xfRef: #xf6
Learning #xfObj.: # x f 1.3
8) Part #xfof #xfthe #xfparasympathetic #xfbranch #xfof #xfthe #xfautonomic #xfnervous #xfsystem #xfis #xfthe #xf nerve.
A) vagus
B) coronary
C) aortic
D) pericardial
#xfAnswer:
# x f A #xfPage
#xfRef: #xf10
Learning #xfObj.: # x f 1.4
2
Copyright #xf© #xf2017 #xfPearson
#xfEducation, #xfInc.
SCHOLARVAULT
,9) When #xfstimulated, #xfthe #xf branch #xfof #xfthe #xfnervous #xfsystem #xfincreases #xfheart
#xfrate, #xfAV #xfconduction, #xfand #xfirritability.
A) parasympathetic
B) sympathetic
C) pacemaker
D) inherent
#xfAnswer:
#xfB #xfPage
#xfRef: #xf9
Learning #xfObj.: # x f 1.4
10) Which #xfcardiac #xfcells #xfare #xfresponsible #xffor #xfinitiating #xfand #xfconducting #xfpacemaker #xfimpulses?
A) Motor #xfcells
B) Mechanical #xfcells
C) Electrical #xfcells
D) Atrioventricular
#xfcells #xfAnswer: # x f C
Page #xfRef: #xf1
Learning #xfObj.: # x f 1.1
11) Which #xfis #xfthe #xfnormal #xfpacemaker #xfof #xfthe #xfheart?
A) SA #xfnode
B) AV #xfnode
C) AV #xfjunction
D) Ventricle
#xfAnswer:
# x f A #xfPage
#xfRef: #xf5
Learning #xfObj.: # x f 1.3
12) Which #xfof #xfthe #xffollowing #xfis #xfNOT #xfa #xfpart #xfof #xfthe #xfnormal #xfcardiac #xfconduction #xfsystem?
A) Coronary #xfsinus
B) AV #xfnode
C) Purkinje #xfFibers
D) Internodal
#xfpathways #xfAnswer:
# x fA
Page #xfRef: #xf5
Learning #xfObj.: # x f 1.1
13) What #xfis #xfthe #xfterm #xffor #xfthe #xffail-safe #xfmechanism #xfthat #xfallows #xfa #xflower #xfpacemaker
#xfto #xftake #xfover #xfwhen #xfa #xfhigher #xfsite #xffails?
A) Polarization
B) Irritability
C) AV #xfconduction
D) Escape
#xfAnswer:
3
Copyright #xf© #xf2017 #xfPearson
#xfEducation, #xfInc.
SCHOLARVAULT
, #xf D #xfPage
#xfRef: #xf7
Learning #xfObj.: # x f 1.4
4
Copyright #xf© #xf2017 #xfPearson
#xfEducation, #xfInc.
SCHOLARVAULT