Enhancement of an electrocardiogram (ECG) showing a normal heart rate. Shown here are 2 strokes at a regular interval, indicating a normal heart beat. An ECG measures the electrical activity of the heart. Contractions are caused by electrical signals betw

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Enhancement of an electrocardiogram (ECG) showing a normal heart rate. Shown here are 2 strokes at a regular interval, indicating a normal heart beat. 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.

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Size: 3427px × 2082px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: beat, cardiac, cardiology, colored, colorized, contraction, ecg, ekg, electrical, electrocardiogram, electrocardiograph, electrocardiography, enhancement, health, healthy, heart, heartbeat, medical, medicine, normal, rate