NBCE PART 1 PHYSIOLOGY
CERTIFICATION EVALUATION TEST BANK
2026 COMPLETE QUESTIONS AND
SOLUTIONS EXAMPREP STUDY GUIDE
⩥ What vein is responsible for draining the lumbars into the SVC?
Answer: Azygous vein
⩥ What is the purpose of AV Nodal Delay? Answer: It allows for blood
to fill in the Ventricles *DELAY CARDIAC IMPULSE*
⩥ How many pulmonary arteries are there, & what type of blood do they
carry? Answer: - 2 - Deoxygenated blood
⩥ How many pulmonary veins are there, & what type of blood do they
carry? Answer: - 4 - Oxygenated blood
⩥ Location of Mitral valve *Bicuspid*? Answer: B/w left Atrium &
Ventricle
⩥ Location of Tricuspid valve? Answer: B/w right Atrium & Ventricle
,⩥ Where is the SA node located? Answer: Crista Terminalis of the Right
Atrium
⩥ What wave represents Atrial depolarization? Answer: P wave *starts
at SA node in the Crista Terminalis of R Atrium*
⩥ What represents AV nodal delay on electrocardiograms? Answer: P-R
interval
⩥ Why is the Purkinje system in the Ventricle 150 times faster than the
AV node in the heart? Answer: Purkinje system has increased
intercalated discs & gap junctions
⩥ What wave represents Ventricular depolarization? Answer: QRS
complex
⩥ What wave represents Ventricular repolarization? Answer: T wave
⩥ What does the S-T segment represent on an electrocardiogram?
Answer: isovolumetric relaxation
⩥ What sends impulses to the Ventricles to contract? Answer: Purkinje
fibers - The pacemaker of the heart SA node
, ⩥ What is the first heart sound? Answer: Where is it best heard?♂
closing of AV valves *Mitral & Tricuspid* & heard best at the apex of
the heart
⩥ What is the second heart sound? Answer: Closing of Aortic &
Pulmonary valves *Semilunar valves*
⩥ Diastole represents? Answer: - Relaxation *Atrium contraction*
⩥ Systole represents? Answer: - Contraction *Ventricle contraction*
⩥ What effects are seen in the valves during diastole ARMS & PRTS
*diastole*? Answer: - Aortic Regurgitation - Mitral Stenosis - Pulmonic
Regurgitation - Tricuspid Stenosis
⩥ What effects are seen in the valves during systole opposite of ARMS
& PRTS? Answer: - Aortic Stenosis - Mitral Regurgitation - Pulmonic
Stenosis - Tricuspid Regurgitation
⩥ What is involved w/ Tetralogy of Fallot heart pathology? Answer:
PROV - Pulmonary stenosis - Right Ventricular hypertrophy -
Dextroposition of Aorta - Ventricular septal defect
⩥ Which of the following is not associated w/ Tetralogy of Fallot?
Answer: Interatrial septal defect *should be interventricular*
CERTIFICATION EVALUATION TEST BANK
2026 COMPLETE QUESTIONS AND
SOLUTIONS EXAMPREP STUDY GUIDE
⩥ What vein is responsible for draining the lumbars into the SVC?
Answer: Azygous vein
⩥ What is the purpose of AV Nodal Delay? Answer: It allows for blood
to fill in the Ventricles *DELAY CARDIAC IMPULSE*
⩥ How many pulmonary arteries are there, & what type of blood do they
carry? Answer: - 2 - Deoxygenated blood
⩥ How many pulmonary veins are there, & what type of blood do they
carry? Answer: - 4 - Oxygenated blood
⩥ Location of Mitral valve *Bicuspid*? Answer: B/w left Atrium &
Ventricle
⩥ Location of Tricuspid valve? Answer: B/w right Atrium & Ventricle
,⩥ Where is the SA node located? Answer: Crista Terminalis of the Right
Atrium
⩥ What wave represents Atrial depolarization? Answer: P wave *starts
at SA node in the Crista Terminalis of R Atrium*
⩥ What represents AV nodal delay on electrocardiograms? Answer: P-R
interval
⩥ Why is the Purkinje system in the Ventricle 150 times faster than the
AV node in the heart? Answer: Purkinje system has increased
intercalated discs & gap junctions
⩥ What wave represents Ventricular depolarization? Answer: QRS
complex
⩥ What wave represents Ventricular repolarization? Answer: T wave
⩥ What does the S-T segment represent on an electrocardiogram?
Answer: isovolumetric relaxation
⩥ What sends impulses to the Ventricles to contract? Answer: Purkinje
fibers - The pacemaker of the heart SA node
, ⩥ What is the first heart sound? Answer: Where is it best heard?♂
closing of AV valves *Mitral & Tricuspid* & heard best at the apex of
the heart
⩥ What is the second heart sound? Answer: Closing of Aortic &
Pulmonary valves *Semilunar valves*
⩥ Diastole represents? Answer: - Relaxation *Atrium contraction*
⩥ Systole represents? Answer: - Contraction *Ventricle contraction*
⩥ What effects are seen in the valves during diastole ARMS & PRTS
*diastole*? Answer: - Aortic Regurgitation - Mitral Stenosis - Pulmonic
Regurgitation - Tricuspid Stenosis
⩥ What effects are seen in the valves during systole opposite of ARMS
& PRTS? Answer: - Aortic Stenosis - Mitral Regurgitation - Pulmonic
Stenosis - Tricuspid Regurgitation
⩥ What is involved w/ Tetralogy of Fallot heart pathology? Answer:
PROV - Pulmonary stenosis - Right Ventricular hypertrophy -
Dextroposition of Aorta - Ventricular septal defect
⩥ Which of the following is not associated w/ Tetralogy of Fallot?
Answer: Interatrial septal defect *should be interventricular*
