Biology
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Medium
Question
QRS complex represents ____________?
A
Atrial systole
B
Ventricular systole
✓ Official correct answer
C
Atrial diastole
D
Ventricular diastole
Community credibility
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A
Atrial systole
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B
Ventricular systole
No member explanations yet for this option.
C
Atrial diastole
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D
Ventricular diastole
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Explanation
The QRS complex on an electrocardiogram represents the electrical depolarization of the ventricles, which triggers ventricular systole (contraction).