| 1. | It causes tachycardia by blocking vagal effects on the sinoatrial node.
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| 2. | Cells in the sinoatrial node do this by creating an action potential.
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| 3. | The electrical origin of atrial Purkinje fibers arrives from the sinoatrial node.
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| 4. | The right vagus branch innervates the sinoatrial node.
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| 5. | Chronotropic drugs may change the heart rate and rhythm produced by the sinoatrial node.
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| 6. | The cardiac pacemaker cells of the sinoatrial node in the heart provide a good example.
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| 7. | The cardiac cells of the sinoatrial node provide the pacemaker potential that synchronizes the heart.
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| 8. | In short, they generate action potentials, but at a slower rate than sinoatrial node.
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| 9. | These cells form an ovoid sinoatrial node ( SAN ), on the left venous valve.
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| 10. | The rhythmic beating of the heart is controlled by a small portion called the sinoatrial node.
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