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Cardiac Pacemaker Cells of the SA Node Depolarize and Theoretically

Question 137

Multiple Choice

Cardiac pacemaker cells of the SA node depolarize and theoretically generate a resting heart rate of approximately ________.

A) 60-70 beats per minute
B) 55-65 beats per minute
C) 80-100 beats per minute
D) 45-55 beats per minute
E) 110-120 beats per minute

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