
Normal ECG
Enhancement of an electrocardiogram (ECG) of a normal heart rate. An ECG measures the electrical activity of the heart. Contractions are caused by electrical signals between the upper (atrial) and lower (ventricle) chambers. The tall peak indicates the pumping action of the ventricles.
Credit
Science Source
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Dimensions
4052 x 2127 pixels
Print Size @ 300 dpi
14 x 7 inches / 34 x 18 cm