Question

Why SA node is called the pacemakers?

Answer 1

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★ SA node in Heart is called ' The natural pacemaker ' because it is responsible for setting a rhythm ( heartbeat ) and maintains the beating pace of the heart . Thus it is the pacemaker of the Human Heart .

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# Brishti ☺

Answer 2

Answer:

Electrical impulses from the heart muscle cause your heart to beat . This electrical signal begins in the sinoatrial node, located at the top of the heart's upper-right chamber.The SA node is sometimes called the heart's “natural pacemaker.

Explanation:

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