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Personal Trainer Practice Questions

Category - NSCA

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All of the following are components of the heart’s electrical conduction system EXCEPT:

Sinoatrial node
Atrioventricular node
Catecholamines
Purkinje fibers

Explanation

Answer: C - Catecholamines are not part of the heart’s electrical conduction system. They are hormones that assist in the contraction of the ventricle and increased emptying of the heart.

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