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Cardiac Action Potentials

18. The Heart / Cardiac Action Potentials / Problem 2

Which of the following statements is true regarding the depolarization of Bundle of His?

A

It takes place before the depolarization of the SA node.

B

Its depolarization is followed by the depolarization of the AV node.

C

Its depolarization takes place before atrial contraction is completed.

D

Its depolarization is initiated by the SA node.

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