Arrhythmias - Tisdale Flashcards

1
Q

What does the sinus node do?

A

Generate electrical impulses

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2
Q

What do internodal pathways do?

A

Conduct electrical impulses

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3
Q

Where is the AV Node?

A

In between the atria and ventricles (in lower R atrium)

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4
Q

What depolarizes the ventricles?

A

Purkinjes fibers

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5
Q

How do the cardiomyocytes that aren’t directly traversed by the conduction system contract?

A

Gap junctions allow ions to move through the cells, spreading the action potential so they all contract

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