UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
Atria - CORRECT ANSWERS upper chambers of the heart
ventricle - CORRECT ANSWERS lower chamber of the heart
septum - CORRECT ANSWERS middle wall dividing L and R side of heart
endocardium - CORRECT ANSWERS inner layer of the heart; lines the heart
chambers and valves
Myocardium - CORRECT ANSWERS muscular, middle layer of the heart
epicardium - CORRECT ANSWERS outer layer of the heart
Pericardium - CORRECT ANSWERS Double-layered membrane surrounding the
heart.
heart valves function - CORRECT ANSWERS prevent back flow of blood
tricuspid valve - CORRECT ANSWERS valve between the right atrium and the right
ventricle
bicuspid valve - CORRECT ANSWERS valve between the left atrium and the left
ventricle.
aortic valve - CORRECT ANSWERS heart valve between the left ventricle and the
aorta
, pulmonary valve - CORRECT ANSWERS between right ventricle and pulmonary
artery
coronary arteries receives blood during _____ ______ - CORRECT
ANSWERS ventricular diastole
R coronary artery - CORRECT ANSWERS perfuses SA and AV node
L main coronary artery - CORRECT ANSWERS bifurcates into L circumflex and L
anterior descending
L circumflex supplies - CORRECT ANSWERS posterior/lateral LV
LAD (left anterior descending) perfuses - CORRECT ANSWERS LV
LAD (left anterior descending) occlusion causes - CORRECT ANSWERS ventricular
arrhythmias and death
SA node location - CORRECT ANSWERS upper wall of R atrium
Another name SA node - CORRECT ANSWERS pacemaker
SA node heart rate - CORRECT ANSWERS 60-100 bpm
P wave represents - CORRECT ANSWERS atrial depolarization
SA Node artery occlusion causes - CORRECT ANSWERS bradycardia
AV node location - CORRECT ANSWERS base of right atrium