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L. What are the intrinsic AP firing rates (hence, HR) of the SA node, the AV node, and Purkinje fibers? Which firing rate(s)
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Answer #1

Intrinsic firing rate of SA node- 60-100 bpm

Intrinsic firing rate of AV node- 40-60 bpm

Intrinsic firing rate of purkinje fibers- 20-40 bpm

firing rates of SA and AV nodes are compatible for life while firing rate of purkinje fibers re too slow.

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