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Which chambers act as the main pumping chambers of the heart?

AVesicles
BVentricles
CVentricules
DVestibules
Answer & Solution
Correct answer: B. Ventricles
1. The atria only pass blood on. 2. The lower chambers do the hard work. 3. Those are the ventricles. _Source: OpenStax Anatomy and Physiology 2e, Chapter 19, The Cardiovascular System: The Heart._
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