Natural pacemaker of heart is?

AV node

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SA node

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Bundle of His

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Purkinje fibers

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Solution

The correct option is B AV node
Electrical impulses from the heart muscle causes the 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.
So, the correct answer is (A)

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The cardiac impulse is initiated and conducted further upto ventricle. The correct sequence of conduction of impulse is
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Sino-atrial node is called the pacemaker of our heart. Why?

Q. The purpose of the AV node is to _______ and the purpose of the Purkinje fibers is to _______.

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