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24 kwi 2023 · Atrioventricular Bundle. The atrioventricular bundle (bundle of His) is a continuation of the specialised tissue of the AV node, and serves to transmit the electrical impulse from the AV node to the Purkinje fibres of the ventricles. It descends down the membranous part of the interventricular septum, before dividing into two main bundles ...
The bundle of His is an important part of the electrical conduction system of the heart, as it transmits impulses from the atrioventricular node, located at the anterior-inferior end of the interatrial septum, to the ventricles of the heart.
17 sie 2023 · The atrioventricular (AV) bundle (of His) is the initial segment of the AV node that penetrates through the fibrous trigone into the membranous part of the interventricular septum. On transverse section at the level of the fibrous body, the AV bundle may appear oval, quadrangular or triangular.
30 paź 2023 · Key facts about the atrioventricular (AV) node. Structure. Node of specialized cardiac muscle cells. Location. Posteroinferior interatrial septum wall, within triangle of atrioventricular node (Koch’s triangle) Function. Transmits impulses from atria to ventricles and coordinates their contraction. Blood supply.
The atrioventricular bundle (AV bundle or bundle of His) is a tract of fibers that extends inferiorly from the AV node at the base of the right atrium. It extends from the AV node a short distance into the interventricular septum.
The bundle of His is a collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the AV node (located between the atria and the ventricles) to the point of the apex of the fascicular branches via the bundle branches.
This article reviews firstly the anatomy and structure of the atrioventricular junction and groove followed by the morphology and variety of accessory path-ways that connect directly atrial and ventricular myocardium and those involving the specialized atrioventricular junctional tissues.
