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What three major waves of electrical signals appear on the ECGEKG?
Wiki User
∙ 15y ago
* The first wave is called the P wave. It records the electrical activity of the atria (the heart's upper chambers). * The second and largest wave, the QRS wave, records the electrical activity of the ventricles (the heart's lower chambers). * The third wave is the T wave. It records the heart's return to the resting state.
Wiki User
∙ 15y ago
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