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a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract

a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract

the local voltage change across the cell wall as a nerve impulse is transmitted

the local voltage change across the cell wall as a nerve impulse is transmitted

the local voltage change across the cell wall as a nerve impulse is transmitted