ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY
Human heart, computer artwork. Human heart surrounded by barbed wire electrocardiogram (ECG) traces. The barbed wire traces may represent cardiovascular disease and poor cardiac health. The heart is a hollow muscle that pumps blood around the body. Its main blood vessels (blue and red) can be seen at upper centre. An ECG trace represents the pumping of the heart as a series of waves of various sizes. These waves correspond to the electrical activity that occurs in the heart muscle before and during contraction. An ECG is an important heart monitoring technique that can be used to diagnose cardiac disorders.
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