2 years ago

What depolarizes producing the P wave, which generates a wave of contraction

1 answer:

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Answer: The P wave indicates atrial depolarization. The P wave occurs when the sinus node, also known as the sinoatrial node, creates an action potential that depolarizes the atria. The P wave should be upright in lead II if the action potential is originating from the SA node.

Explanation:

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