subendocardial branches

What Area Of The Heart’s Electrical Conduction Is Known As The Pacemaker Of The Heart?

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What Area Of The Heart’s Electrical Conduction Is Known As The Pacemaker Of The Heart? The cells of the SA node at the top of the heart are known as the pacemaker of the heart because the rate at which these cells send out electrical signals determines the rate at which the entire heart beats

What Area Of The Heart Is Responsible For The Delay Of Conduction Between The Artrium And Ventricles?

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What Area Of The Heart Is Responsible For The Delay Of Conduction Between The Artrium And Ventricles? The AV node acts to delay the impulses by approximately 120ms, to ensure the atria have enough time to fully eject blood into the ventricles before ventricular systole. The wave of excitation then passes from the atrioventricular node