Heartbeat stages, illustration

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Illustration of seven hearts states of action. Each heart is accompanied by the corresponding electrocardiogram (ECG) diagram showing the heart's electric activity. The first two diagrams from left show the activation of the atria, or the P-wave, stage. The next four diagrams represent the activation of the ventricles, or the QRS-complex. The last one diagram shows the recovery wave, or T-wave, when the ventricles relax.

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Size: 7250px × 2417px
Location:
Photo credit: © SIMONE ALEXOWSKI / SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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