Biology, asked by payalbharatt, 3 months ago

what is the QRS in a heartbeat​

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Answered by Anonymous
2

Answer:

It corresponds to the depolarization of the right and left ventricles of the human heart and contraction of the large ventricular muscles. In adults, the QRS complex normally lasts 80 to 100 ms; in children it may be shorter.

Explanation:

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