Biology, asked by kvaishali, 4 months ago

mention the role of SA node in human heart

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Answered by bhimacharan92

0

Answer:

The SA (sinoatrial) node generates an electrical signal that causes the upper heart chambers (atria) to contract. The signal then passes through the AV (atrioventricular) node to the lower heart chambers (ventricles), causing them to contract, or pump. The SA node is considered the pacemaker of the heart.

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