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astra-53 [7]
3 years ago
15

What causes the heart, in the absence of any external influences, to beat at the rate of 100 beats per min (bpm)

Medicine
1 answer:
valentinak56 [21]3 years ago
7 0

Answer:

Explanation:Vagal innervation of the heart

The electrical activity spontaneously generated by the sinoatrial node sets the pace for the rest of the heart. In absence of external stimuli, sinoatrial pacing generally maintains the heart rate in the range of 60–100 beats per minute (bpm).

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