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===Overview of Arrhythmias===
===Overview of Arrhythmias===
*Normal cardiac conduction begins in the pacemaker of the heart known as the sinoatrial node. An impulse is formed in the sinoatrial (SA) node and a wave of depolarization travels to the atrioventricular (AV) node then to the bundle of His, and finally through the bundle branches into the Purkinje fibres. The cardiac rhythm is regulated by the sympathetic and parasympathetic nervous systems.
*Normal cardiac conduction begins in the pacemaker of the heart known as the sinoatrial node. An impulse is formed in the sinoatrial (SA) node and a wave of depolarization travels to the atrioventricular (AV) node then to the bundle of His, and finally through the bundle branches into the Purkinje fibres. The cardiac rhythm is regulated by the sympathetic and parasympathetic nervous systems.
6. Hypoxia, Hypovolemia, Hypothermia
6. Hypoxia, Hypovolemia, Hypothermia
[[Category:Arrhythmia]][[Category:To_Do_-_Cardiovascular]]