An electrical impulse starting at the SA node passes through the conducting-system structures in the following order _______.

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


Ans: D. AV node>bundle of His>Purkinje fibers

Anatomy & Physiology

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