Biology, asked by abushah529, 2 months ago

Natural packmakers of the heart name the following​

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Answered by ishuishanigupta
3

The sinoatrial (SA) node or sinus node is the heart's natural pacemaker. It's a small mass of specialized cells in the top of the right atrium (upper chamber of the heart). It produces the electrical impulses that cause your heart to beat. ... These are called demand pacemakers.

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