ECG ANALYSIS :RHYTHM
RECOGNITION EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS
Where is the heart located in the chest? - ANS between the lungs in the mediastinum
where is majority of the heart located - ANS left of the midline
what is the outer layer of the pericardium called - ANS fibrous pericadium
what are the layers of the heart and their functions? - ANS fibrous pericardium
parietal layer(serous)
pericardial cavity
visceral/epicardium(serous)
what is the role of the fibrous peridcardium - ANS limits the motion of the heart and
prevents over distention when the heart contracts, anchors the heart in the mediastinum,
protects the heart
how many layers does the serous pericardium have and what does it do ? - ANS two layers,
helps lubricate the heart to reduce friction between layers
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, what are the two layers of the serous pericardium? - ANS parietal layer and visceral layer, or
epicardium
what is the space between the parietal layer and visceral layer called? - ANS the pericardial
cavity
what major components run down the heart within the epicardium? - ANS the left and right
coronary arteries
what can be found within the pericardial space - ANS 15 to 50 ml of pericardial fluid
what is significant about the myocardium(middle layer) - ANS comprised of involuntary
striated muscle, it is this layer that contracts to pump blood
what can be found in the endocardium(inner most layer of the heart) - ANS Purkinje Fibers
what is the role of the Purkinje Fibers found in the endocardium? - ANS depolarize
surrounding cells to initiate a contraction in the heart
how does the endocardial endothelial tissue play a vital role in maintaining cardiac function? -
ANS releases compounds such as endothelin and nitrous oxide that influence cardiac
conduction, contraction, rhythm, and metabolism
what is endothelin - ANS a peptide, or small protein that constricts blood vessels and raises
blood pressure
what is the role of the right atrium of the heart? - ANS receive deoxygenated blood from
peripheral and coronary circulation via the superior and inferior vena cava and the coronary
sinus
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
RECOGNITION EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS
Where is the heart located in the chest? - ANS between the lungs in the mediastinum
where is majority of the heart located - ANS left of the midline
what is the outer layer of the pericardium called - ANS fibrous pericadium
what are the layers of the heart and their functions? - ANS fibrous pericardium
parietal layer(serous)
pericardial cavity
visceral/epicardium(serous)
what is the role of the fibrous peridcardium - ANS limits the motion of the heart and
prevents over distention when the heart contracts, anchors the heart in the mediastinum,
protects the heart
how many layers does the serous pericardium have and what does it do ? - ANS two layers,
helps lubricate the heart to reduce friction between layers
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, what are the two layers of the serous pericardium? - ANS parietal layer and visceral layer, or
epicardium
what is the space between the parietal layer and visceral layer called? - ANS the pericardial
cavity
what major components run down the heart within the epicardium? - ANS the left and right
coronary arteries
what can be found within the pericardial space - ANS 15 to 50 ml of pericardial fluid
what is significant about the myocardium(middle layer) - ANS comprised of involuntary
striated muscle, it is this layer that contracts to pump blood
what can be found in the endocardium(inner most layer of the heart) - ANS Purkinje Fibers
what is the role of the Purkinje Fibers found in the endocardium? - ANS depolarize
surrounding cells to initiate a contraction in the heart
how does the endocardial endothelial tissue play a vital role in maintaining cardiac function? -
ANS releases compounds such as endothelin and nitrous oxide that influence cardiac
conduction, contraction, rhythm, and metabolism
what is endothelin - ANS a peptide, or small protein that constricts blood vessels and raises
blood pressure
what is the role of the right atrium of the heart? - ANS receive deoxygenated blood from
peripheral and coronary circulation via the superior and inferior vena cava and the coronary
sinus
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
