ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY
Heartbeat. Conceptual computer artwork of a healthy heartbeat showing a normal ECG trace made up of red blood cells. An ECG (electrocardiograph) is a device that records the electrical activity of the heart. It is a useful diagnostic tool for checking a patient's health. Red blood cells (erythrocytes) are the cells responsible for carrying oxygen to where it is required in the body. They do this using the red pigment haemoglobin.
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