Where does the cardiac impulse originate?
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SA node: P wave. Under normal conditions, electrical activity is spontaneously generated by the SAnode, the cardiac pacemaker. This electrical impulse is propagated throughout the right atrium, and through Bachmann's bundle to the leftatrium, stimulating the myocardium of the atria to contract.
SA node: P wave. Under normal conditions, electrical activity is spontaneously generated by the SAnode, the cardiac pacemaker. This electrical impulse is propagated throughout the right atrium, and through Bachmann's bundle to the leftatrium, stimulating the myocardium of the atria to contract.
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