If QRS Complex and T Wave Represent Depolarization and Repolarization

question 77

Multiple Choice

If QRS complex and T wave represent depolarization and repolarization of ventricles respectively; why is T wave wider and smaller than QRS complex?

• A) because QRS complex represents force of contraction
• B) because repolarization is slower than depolarization
• C) because T wave is a composite of depolarization of atria and ventricles
• D) because QRS complex is a composite of depolarization of atria and ventricles

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