The ECG is an actual recording of cardiac electrical activity.
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Q104: The AV and semilunar valves are never
Q111: The extent of ventricular filling is the
Q114: All of the blood within the ventricles
Q115: Funny channels open when the membrane potential
Q116: Ventricular ejection occurs once the afteroad has
Q117: The left ventricle contracts with more force
Q118: Most ventricular filling is accomplished during atrial
Q120: Gap junctions are absent between atrial and
Q121: The ESV of the heart averages about
Q123: The rate of appearance of the QRS
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