Why is the electrical impulse temporarily delayed at the atrioventricular (AV) node?
A) to allow complete emptying of the ventricles
B) to allow more sodium buildup in the myocardial cells
C) to allow better filling of the ventricles
D) to allow complete filling of the atria
Correct Answer:
Verified
Q4: The electrocardiogram (ECG) is primarily used to
Q5: What is implied by an abnormally prolonged
Q6: Which of the following axis placements represents
Q7: What is the normal period of time
Q10: What structure normally paces the healthy heart?
A)atrioventricular
Q12: What is suggested by inverted T waves
Q13: Which of the following waves represents repolarization
Q14: Which of the following ECG abnormalities is
Q16: The QRS of an ECG falls on
Q17: Which of the following waves represents depolarization
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