NURS 5315: ADV PATHO EXAM 3 SET 1 EXAM QUESTIONS AND ANSWERS 100% PASS 2026/2027

NURS 5315: ADV PATHO EXAM 3 SET 1
EXAM QUESTIONS AND ANSWERS 100%
PASS 2026/2027




Cardiac Blood Flow - ANS o From body



o Through:

♣ Vena cavas

♣ Right atrium

♣ Tricuspid valve

♣ Right ventricle

♣ Pulmonic valve

♣ Pulmonary artery



o To lungs

♣ Pulmonary vein

♣ Left atrium

♣ Mitral valve

♣ Left ventricle

♣ Aortic valve

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, o Back to body



Cardiac Anatomy - ANS The heart is the size of a closed fist



2/3 of the heart is to the left of the midline

1/3 under the sternum



heart layers - ANS Endocardium ( inner)

myocardium ( middle)

Pericardium ( outer)



Cardiac action potential: phase 0 - ANS rapid depolarization

Sodium influx d/t voltage-gated sodium channels opening



Cardiac action potential: phase 1 - ANS initial repolarization of cells

voltage gated sodium channels closed

voltage gated potassium channels open

Potassium leaves cell slowly



Cardiac action potential: phase 2 - ANS plateau phase

voltage gated calcium channels open

influx of calcium into the cell

balances potassium efflux

calcium influx triggers more calcium from sarcoplasmic reticulum > myocardial contraction


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