The function of the atrioventricular node is to
A) excite the left and right atrium
B) control the heart rate
C) prevent the atria and ventricles from contracting simultaneously
D) repolarize the heart after systole
E) none of these
Correct Answer:
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Q22: Which of the following ECG waves represents
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A)There
Q33: The AV node
A) is the normal pacemaker
Q33: Extrasystole of the heart means that it
A)beats
Q34: Which is the normal sequence of the
Q37: The fastest rate of autorhythmicity is normally
Q37: The QRS complex represents
A) depolarization of the
Q39: The SA is the heart's normal pacemaker
Q40: During isovolumetric phases of the cardiac cycle,
A)
Q56: What percentage of ventricular filling is normally
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