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Order the heart's wiring

Exercise and reference answers

Steps
  1. SA node fires
  2. Internodal paths
  3. AV node delay
  4. Bundle of His
  5. Purkinje fibers
Instructions
Tap the conduction steps in the order the impulse travels.

Explanation

_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 19 "The Cardiovascular System: The Heart", section 19.2 Cardiac Muscle and Electrical Activity_
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