what is sinoatrial node?
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Answer:
it is a heart disease. which destroys the human body and heart
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Explanation:
The SA node is the heart's natural pacemaker. The SA node consists of a cluster of cells that are situated in the upper part of the wall of the right atrium (the right upper chamber of the heart). The electrical impulses are generated there. The SA node is also called the sinus node.
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