Which of the following statements regarding the conduction system of the heart is not true?

A) The AV node stimulates the SA node.
B) The conduction system stimulates the different chambers of the heart in the correct order.
C) Purkinje fibers stimulate the ventricular myocardium.
D) The heart rate is regulated by the autonomic nervous system.


A
Explanation: The SA node stimulates the AV node. All other choices are true.

Health & Biomechanics

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