The "QRS" Complex Visible in a Normal Electrocardiogram Is Associated

question 20

Multiple Choice

The "QRS" complex visible in a normal electrocardiogram is associated with the

• A)excitation from the AV node and depolarization of the ventricles.
• B)excitation from the SA node and depolarization of the atria.
• C)excitation from the SA node and repolarization of the ventricles.
• D)excitation from the AV node and repolarization of the atria.
• E)activity in the vagus nerve and release of acetylcholinE.

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