Examl 2:l BIOl 202/l BIO202l (NEWl 2025/l
2026l Update)l Humanl Anatomyl andl
Physiologyl IIl Guide|l Questionsl &l
Answers|l Gradel A|l 100%l Correctl
(Verifiedl Solutions)-l GCU
QUESTION
"Depolarizationl ofl atrial inl responsel tol SAl nodel triggering"?
Answer:
Pl wave
QUESTION
"Delayl ofl AVl nodel tol allowl fillingl ofl ventricles"?
Answer:
PRl interval
QUESTION
"Depolarizationl ofl ventricles,l triggersl mainl pumpingl contractions"?
Answer:
QRSl complex
QUESTION
"Beginningl ofl ventriclel repolarization,l shouldl bel flat"?
Answer:
STl segment
,QUESTION
"Ventricularl repolarization"?
Answer:
Tl wave
QUESTION
"failurel ofl conductionl system"?
Answer:
Heartl block
QUESTION
"abnormall cardiacl rhythm"?
Answer:
Arrhythmia
QUESTION
"Ifl thel PRl intervall isl constantl andl greaterl thanl .2sl (Ifl thel Rl isl froml P)"?
Answer:
1stl degreel block
QUESTION
"Ifl thel PRl intervall progressivelyl lengthensl untill al QRSl isl droppedl (longer,l longer,l
longer,l drop)"?
Answer:
2ndl degreel blockl (Mobitzl typel 1l (Wenkebach))
QUESTION
"QRSl beatsl arel intermittentlyl dropped,l withoutl anyl PRl intervall prolongationl (ifl somel
Psl don'tl getl through)"?
, Answer:
2ndl degreel blockl (Mobitzl typel 2)
QUESTION
"Dissociationl betweenl P'sl andl QRS'sl (Ifl Psl andl Qsl don'tl agree)"?
Answer:
3rdl degreel block
QUESTION
"Thel normall atriall rhythml isl momentarilyl interruptedl byl al surprisel atriall contraction.l
Stress,l caffeine,l andl variousl drugsl mayl increasel thel incidence,l presumablyl byl increasingl
thel permeabilitiesl ofl thel SAl pacemaker,l Thel impulsel spreadsl alongl thel conductionl
pathway,l andl al normall ventricularl contractionl followsl thel atriall beat"?
Answer:
Prematurel Atriall Contractionl (PAC)
QUESTION
"Al prematurel atriall contractionl triggersl al flurryl ofl atriall activity.l Thel ventriclesl arel stilll
ablel tol keepl pace,l andl thel heartl ratel jumpsl tol aboutl 180l beatsl perl minute"?
Answer:
Paroxysmall Atriall Tachycardial (PAT)
QUESTION
Thel impulsesl movel overl thel atriall surfacel atl ratesl ofl perhapsl 500l beatsl perl minute.l
thel atriall walll quiversl insteadl ofl producingl anl organizedl contraction,l thel ventricularl ratel
cannotl followl thel atriall ratel remainsl normall limits,l sincel thel atrial isl nowl nonfunctionall
theirl contributionsl tol ventricularl endl diastolicl volumel isl sol smalll thatl thel conditionl
mayl gol unnoticedl inl olderl individuals"?
Answer:
Atriall Fibrillationl (AF)
2026l Update)l Humanl Anatomyl andl
Physiologyl IIl Guide|l Questionsl &l
Answers|l Gradel A|l 100%l Correctl
(Verifiedl Solutions)-l GCU
QUESTION
"Depolarizationl ofl atrial inl responsel tol SAl nodel triggering"?
Answer:
Pl wave
QUESTION
"Delayl ofl AVl nodel tol allowl fillingl ofl ventricles"?
Answer:
PRl interval
QUESTION
"Depolarizationl ofl ventricles,l triggersl mainl pumpingl contractions"?
Answer:
QRSl complex
QUESTION
"Beginningl ofl ventriclel repolarization,l shouldl bel flat"?
Answer:
STl segment
,QUESTION
"Ventricularl repolarization"?
Answer:
Tl wave
QUESTION
"failurel ofl conductionl system"?
Answer:
Heartl block
QUESTION
"abnormall cardiacl rhythm"?
Answer:
Arrhythmia
QUESTION
"Ifl thel PRl intervall isl constantl andl greaterl thanl .2sl (Ifl thel Rl isl froml P)"?
Answer:
1stl degreel block
QUESTION
"Ifl thel PRl intervall progressivelyl lengthensl untill al QRSl isl droppedl (longer,l longer,l
longer,l drop)"?
Answer:
2ndl degreel blockl (Mobitzl typel 1l (Wenkebach))
QUESTION
"QRSl beatsl arel intermittentlyl dropped,l withoutl anyl PRl intervall prolongationl (ifl somel
Psl don'tl getl through)"?
, Answer:
2ndl degreel blockl (Mobitzl typel 2)
QUESTION
"Dissociationl betweenl P'sl andl QRS'sl (Ifl Psl andl Qsl don'tl agree)"?
Answer:
3rdl degreel block
QUESTION
"Thel normall atriall rhythml isl momentarilyl interruptedl byl al surprisel atriall contraction.l
Stress,l caffeine,l andl variousl drugsl mayl increasel thel incidence,l presumablyl byl increasingl
thel permeabilitiesl ofl thel SAl pacemaker,l Thel impulsel spreadsl alongl thel conductionl
pathway,l andl al normall ventricularl contractionl followsl thel atriall beat"?
Answer:
Prematurel Atriall Contractionl (PAC)
QUESTION
"Al prematurel atriall contractionl triggersl al flurryl ofl atriall activity.l Thel ventriclesl arel stilll
ablel tol keepl pace,l andl thel heartl ratel jumpsl tol aboutl 180l beatsl perl minute"?
Answer:
Paroxysmall Atriall Tachycardial (PAT)
QUESTION
Thel impulsesl movel overl thel atriall surfacel atl ratesl ofl perhapsl 500l beatsl perl minute.l
thel atriall walll quiversl insteadl ofl producingl anl organizedl contraction,l thel ventricularl ratel
cannotl followl thel atriall ratel remainsl normall limits,l sincel thel atrial isl nowl nonfunctionall
theirl contributionsl tol ventricularl endl diastolicl volumel isl sol smalll thatl thel conditionl
mayl gol unnoticedl inl olderl individuals"?
Answer:
Atriall Fibrillationl (AF)
