atrioventricular trunk


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Noun1.atrioventricular trunk - a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contractatrioventricular trunk - a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract
cardiac muscle, heart muscle - the muscle tissue of the heart; adapted to continued rhythmic contraction