CBSE BOARD X, asked by marwansnoopy995, 11 months ago

Why is sino-atrial node also called pace maker ?

Answers

Answered by geetachoudhary67
1

Answer:

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

The sinus node continuously generates electrical impulses, thereby setting the normal rhythm and rate in a healthy heart. Hence, the SA node is referred to as the natural pacemaker of the heart.

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