The electrical conduction pathway in the heart is: SA node to AV node, then to the bundle of His, down the interventricular septum, splitting into R and L bundle branches, and finally spreading through Purkinje fibers along the ventricular walls.
1. AP passes to AV node 2. AV node to bundle of His - pierces fibrous skeleton to descend along interventricular septum 3. Bundle of His divides into R and L bundle branches (continuous with purkinje fibers) 4. Purinjie fibers run along walls to spread excitation <img src="paste-7180a6e05f41425c29389963120126e321c296bf.jpg">
| Front | Explain the pathway of conduction for the order tht electricity spreads across the heart |
|---|---|
| Back | 1. AP passes to AV node 2. AV node to bundle of His - pierces fibrous skeleton to descend along interventricular septum 3. Bundle of His divides into R and L bundle branches (continuous with purkinje fibers) 4. Purinjie fibers run along walls to spread excitation |
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