What are the regulations of cardiac activity ??​

The cardiac cycle is a normal activity of the human heart and is regulated automatically by the nodal tissues- sinoatrial node (SA node) and atrioventricular node (AV node). The variation in the cardiac cycle results in an increase or decrease in the cardiac output.

Explanation:

The cardiac cycle is a normal activity of the human heart and is regulated automatically by the nodal tissues- sinoatrial node (SA node) and atrioventricular node (AV node). The variation in the cardiac cycle results in an increase or decrease in the cardiac output.

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explanation:

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