What is the condition of the heart valves during atrial contraction?

The main job of the heart is to pump blood throughout the body, so the heart valves must help the blood move. When the atrium contracts or contracts, they stretch and sag along the ventricles. In this way, the passage for blood is opened, and it moves from the atria into the ventricles. And so on in a circle, providing the cells of the body with oxygen and other valuable trace elements.

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