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Cardiac Conduction 1. Label the parts of the Heart's Conduction System..., then function
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The heart's conduction system is a group of specialized cardiac muscle cells that initiate and coordinate the contraction of the heart. The main parts of the heart's conduction system are:1. Sinoatrial (SA) node: This is the natural pacemaker of the heart, located in the right atrium. It generates the electrical impulses that initiate each heartbeat.2. Atrial conduction pathways: These pathways carry the electrical impulses from the SA node to the atria, causing them to contract.3. Atrioventricular (AV) node: Located in the right atrium, the AV node receives the electrical impulses from the atria and delays them before passing them on to the ventricles.4. Bundle of His: This bundle of specialized muscle fibers carries the electrical impulses from the AV node to the bundle branches.5. Right and left bundle branches: These branches carry the electrical impulses from the Bundle of His to the Purkinje fibers in the ventricles.6. Purkinje fibers: These fibers spread throughout the ventricles and carry the electrical impulses to the ventricular muscle, causing them to contract.The function of the heart's conduction system is to ensure the coordinated contraction of the atria and ventricles, allowing the heart to effectively pump blood throughout the body.