McGraw-Hill Online Learning Center Test

McGraw-Hill Online Learning Center Test


1. Review the image and answer the following questions.

Where does the wave of depolarization begin in the heart?

A. AV node
B. SA node
C. Purkinje fibers
D. bundle of His


2. What structure spreads the wave of depolarization through the ventricles and to the papillary muscles attached to the chordae tendinae?

A. AV node
B. SA node
C. Purkinje fibers
D. bundle of His
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