Anatomy and Physiology
Quiz 28: Heart
Hypokalemia Can Cause an Increase in the Size of Which
Hypokalemia can cause an increase in the size of which of the following? A) P wave B) QRS complex C) T wave D) U wave
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The first heart sound heard, or the "lub" sound, is caused by the _____ and the _____ valves closing. A) ventricles contracting; AV B) atria contracting; SL C) atria contracting; SA D) ventricles relaxing; AV
On an ECG, the T wave represents: A) depolarization of the atria. B) repolarization of the atria. C) depolarization of the ventricles. D) repolarization of the ventricles.
Depolarization of the ventricles is: A) clearly depicted by the QRS complex. B) masked by the massive ventricular depolarization. C) masked by the massive ventricular repolarization. D) none of the above.
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