The Cardiac Impulse Normally Slows Down at

question 51

Multiple Choice

The cardiac impulse normally slows down at

• A) the bundle of His to wait for the atrial "kick."
• B) the AV node to give the atria time to empty and the ventricles time to fill.
• C) the SA node to prevent a too rapid heart rate.
• D) the Purkinje fibers to give the ventricles time to empty and the atria time to fill.

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