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A 32-year-old member asked:

Can the four chambers of the heart contract simultaneously or at different times?

1 doctor answer1 doctor weighed in
Dr. Bennett Werner
Cardiology 45 years experience
2 + 2: The 2 atria contract simultaneously. The 2 ventricles contract simultaneously. When the atria contract, the ventricles are resting. When the ventricles contract, the atrial are resting. Get it?

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Last updated Jul 9, 2014
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