Question

ordering question
click and drag on elements in order
place the following components of the cardiac conduction system in order of impulse occurrence starting at the top.
instructions
sa node
bundle branches
av bundle
av node
purkinje fibers
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Explanation:

The sino - atrial (SA) node is the natural pacemaker and initiates the electrical impulse. The impulse then travels to the atrioventricular (AV) node. From the AV node, it passes through the AV bundle (bundle of His), then to the bundle branches, and finally to the Purkinje fibers which cause the ventricles to contract.

Answer:

1. SA node
2. AV node
3. AV bundle
4. Bundle branches
5. Purkinje fibers