Which part of human heart is considered as pacemaker why is it so called?
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Electrical impulses from the heartmuscle cause your heart to beat (contract). This electrical signal begins in the sinoatrial (SA) node, located at the top of the heart'supper-right chamber (the right atrium). The SA node is sometimes called the heart's“natural pacemaker.”
Electrical impulses from the heartmuscle cause your heart to beat (contract). This electrical signal begins in the sinoatrial (SA) node, located at the top of the heart'supper-right chamber (the right atrium). The SA node is sometimes called the heart's“natural pacemaker.”
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S.A node is called pacemaker.it controls the heart rate by generating electrical impulses and then sending electrical impulses through the heart muscle causing the heart to contract and pump out throughout the body.
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