Multiple choice

In mammalian heart, the pulmonary is powered by

  1. right atrium and right ventricle

  2. left atrium and right ventricle

  3. only right ventricle

  4. only left ventricle
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A Correct answer
Explanation

The pulmonary circulation is powered by the right atrium (which receives deoxygenated blood from the body) and the right ventricle (which pumps this blood to the lungs). The left atrium and ventricle handle systemic circulation. Both chambers work together to power pulmonary flow.

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