Which of the Following Is Measured by an Electrocardiogram

question 54

Multiple Choice

Which of the following is measured by an electrocardiogram?

• A)impulses from the AV node
• B)impulses of the parasympathetic nervous system that control heart beat
• C)the spread of impulses from the SA node
• D)contraction of the two atria
• E)systole and diastole

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