BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
CARDIOVASCULAR SYSTEM
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Question
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A record of the electrical activity of the heart.
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echocardiogram
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electrocardiogram
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electrocardiography
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echocardiography
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Explanation:
Detailed explanation-1: -An electrocardiogram (ECG or EKG) records the electrical signal from the heart to check for different heart conditions. Electrodes are placed on the chest to record the heart’s electrical signals, which cause the heart to beat. The signals are shown as waves on an attached computer monitor or printer.
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