IMG_0002 - THE INTRINSIC CONDUCTION SYSTEM Sets the rhythm...

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THE INTRINSIC CONDUCTION SYSTEM Sets the rhythm ofthe heart Nodal cells : auto-rhythmic cardiac cells: initiate and distribute the impulses Coordinates activity Determines the direction and speed of the impulses COMPONENTS SA node (sinoatrial): Initiates the impulse and sets the pace of the entire heart In the upper right atrial wall Near the entrance to the superior vena cava fnternodal pathway: Route from the SA node to the AV node AV node (atrioventricular): In the inferior portion of the inter-atrial septum Above the tricuspid valve Impulse gets delayed here AV bundle (Bundle of Ifiss): In the inferior portion of the inter-atrial septum Electrical connection between the atria and ventricles Bundle branches: The Bundle of Hiss splits into these two branches Run along the inter-ventricular septum Purkinje fibers Run through the inter-ventricular septum Penetrate the apex and then go up Innervate the ventricle walls The impulses spread from the nodal cells (intrinsic conduction system) to
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IMG_0002 - THE INTRINSIC CONDUCTION SYSTEM Sets the rhythm...

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