What are the lower and larger chambers of the heart called?

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Multiple Choice

What are the lower and larger chambers of the heart called?

Explanation:
The heart has two upper chambers and two lower chambers; the lower chambers are called ventricles. They are larger and have thicker walls because they’re the pumping chambers that push blood out to the lungs and the rest of the body. The plural term ventricles directly describes these lower, bigger chambers. The other options don’t fit because one is a single chamber (left ventricle), the upper chambers are called atria, and valves are not chambers at all but structures that prevent backflow.

The heart has two upper chambers and two lower chambers; the lower chambers are called ventricles. They are larger and have thicker walls because they’re the pumping chambers that push blood out to the lungs and the rest of the body. The plural term ventricles directly describes these lower, bigger chambers. The other options don’t fit because one is a single chamber (left ventricle), the upper chambers are called atria, and valves are not chambers at all but structures that prevent backflow.

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