SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An electrocardiogram measures what?
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The amount of pressure exerted on blood vessels.
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The electrical activity of the heart.
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How many times the heart contracts over time.
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The body’s temperature caused by friction of blood in vessel.
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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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