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What are purkinje fibers?

A. they are nerves that keep deoxygenated blood from mixing with oxygenated blood.

B. they are nerves in the ventricle walls that cause contractions.

C. they are nerves in the atrium walls that cause contractions

D. They are the "pacemaker" of the heart

Need help!!!

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Answer:

the answer is B

Explanation:

purkinje fibers are located in the ventricular walls of the heart that causes contractions

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