Which of the following is correct about the role of the AV node?

Practice question

Question

Which of the following is correct about the role of the AV node?

Options

Choose one · Correct answer highlighted

It generates the heartbeat independently. It slows down the electrical impulse before it reaches the ventricles. Correct It is located in the left ventricle. It transmits signals directly to the Purkinje fibers.

Explanation

The AV node slows down the electrical signal from the SA node before sending it to the ventricles, allowing the atria to contract first.

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