Practice Quiz

NREMT EMR First Responder

Category - Airway Management

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Which chamber of the heart is responsible for pumping deoxygenated blood received from all over the body to the lungs for gas exchange in the alveoli?
  1. Left atrium
  2. Right atrium
  3. Left ventricle
  4. Right ventricle
Explanation
Answer: D - Although the right atrium receives blood with low oxygen levels from the various parts of the body, it must pass this deoxygenated blood to the right ventricle so that the blood can be pumped to the lungs. The circulation path between the heart and the lungs (and back to the heart) is referred to as pulmonary circulation. The path of blood from the heart to all of the other organs of the body is referred to as systemic circulation, which is the primary responsibility of the left ventricle.
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