What is the significance of atrio-ventricular node and atrio-ventricular bundle in the functioning of heart?
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The AV node is in the right atrium and separates the right auricle from the ventricle.
It gives rise to the bundle that conducts the cardiac impulses from the auricles to the ventricles.
The auricular contraction initiated by the SA node stimulates the AV node, thereby leading to the contraction of ventricles through the bundle.
Hence, the AV node and the bundle play a role in the contraction of ventricles.
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