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The heart is divided by a partition or septum into two halves. The halves are in turn divided into chambers. The upper two chambers of the heart are called atria and the lower two chambers are called ventricles. The atria receive blood returning to the heart from the body and the ventricles pump blood from the heart to the body. Valves allow blood to flow in one direction between the chambers of the heart.

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13y ago
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13y ago

There's four chambers of the heart. The right and left atrium, and the right and left ventricle.

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Q: What are the 2 chambers of the heart?
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