NBCE PART 1 EXAM LATEST 2024 ACTUAL EXAM 200 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES.pdf

NBCE PART 1: PHYSIOLOGY (IRENE G
m m m m m




OLD PACKET) EXAM | QUESTIONS & A
m m m m m m




NSWERS (VERIFIED) | LATEST UPDAT
m m m m




E | GRADED A+ m m m




BloodmfrommUppermExtremitymgoesmintomthemheartmfrommthe .

CorrectmAnswer: SuperiormVenamCava



BloodmfrommLowermExtremitymgoesmintomthemheartmfrommthe .

CorrectmAnswer: InferiormVenamCava



WheremdoesmthemAzygousmvein mdrain mintomthemheartmfrom?

CorrectmAnswer: LumbarsmintomSVC



%mof mbloodmpassivelymflowsmintomthemrightmventricle.

CorrectmAnswer: 80



%mneedsmatrial mcontraction.

CorrectmAnswer: 20



P-wavemstartsmat nodemin mCristamTerminalsmof mrightmatrium.



1

,CorrectmAnswer: SA



Tricuspidmclosesmafter -mwave.

CorrectmAnswer: P



Impulsemtravelsmto node.

CorrectmAnswer: AV



WhatmismAV-Nodal mDelay?

CorrectmAnswer: SAmnodemimpulsemtomAVmnodemandmdelayedm(P-R minterval)



Whatmismisovolumetricmcontraction?

CorrectmAnswer: Tricuspidmclosesm-->mventriclemcontracts



QRSmcomplexmoccursmduemto .

CorrectmAnswer: Ventricularmdepolarization



Mid-systolemcausesmenough mpressuremtomblow mopen valves.

CorrectmAnswer: pulmonicmsemilunar



Bloodmexitsmthemheartmviampulmonary tomthemlungs.

CorrectmAnswer: artery




2

,Thempulmonarymarterymcarriesm blood.

CorrectmAnswer: deoxygenated



Whatmaremthemtwomarteriesmthatmcarrymdeoxygenatedmblood?

CorrectmAnswer: 1.mPulmonarymartery

2.mUmbilical marterym(in mfetus)



Bloodmismoxygenatedmvia .

CorrectmAnswer: Bohrmeffect



How mmanymO2mmoleculesmaremin mhemoglobin?

CorrectmAnswer: 4



In mthemlungs, %mhemoglobin mismsaturatedmwith mO2.

CorrectmAnswer: 97



In mthemlungsmthemBohrmeffectmcauses CO2, H+, DPG,mand temp.

(increasemormdecrease)

CorrectmAnswer: decreasedmformallm4



Bloodmexitsmlungmviampulmonary intomthemleftmatrium.

CorrectmAnswer: vein




3

, Whatmaremthemtwomveinsmthatmcarrymoxygenatedmblood?

CorrectmAnswer: 1.mPulmonarymvein

2.mUmbilical mvein m(in mfetus)



In mthematrium, %mof mbloodmpassivelymflowsmintomthemleftmventricle

CorrectmAnswer: 80



In mthematriummthemotherm20%mof mbloodmflowsmintomthemleftmventriclemby .

CorrectmAnswer: P-wave



How mdoesmbloodmflow mthrough mthemleftmventricle?

CorrectmAnswer: Mitral mclosesm-->misovolumetricmcontraction m-->mbuildsmtension m-->mmid

systolem-->maorticmvalvesmopen m-->mbloodmrushesmintomaorta



Themumbilical mvein mbecomes .

CorrectmAnswer: ligamentummteres



Themligamentousmteresmseparatesmthe lobemfrom lobemof mthemliver.

CorrectmAnswer: left;mquadrate



Diastole .m(contractsmormrelaxes)

CorrectmAnswer: relaxes




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