Respiratory Physiology Quiz
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Questions and Answers

What causes expansion of the lungs during inspiration?

  • Contraction of the abdominal muscles
  • Contraction of the diaphragm (correct)
  • Relaxation of the diaphragm
  • Elastic recoil of the lungs

    • What causes compression of the lungs during expiration?

  • Contraction of the diaphragm
  • Elastic recoil of the lungs
  • Relaxation of the diaphragm (correct)
  • Contraction of the abdominal muscles

    • What primarily achieves the extra force for rapid expiration?

  • Contraction of the diaphragm
  • Elastic recoil of the lungs
  • Contraction of the abdominal muscles (correct)
  • Expansion of the thoracic cavity

    • What is accomplished with the diaphragm during normal quiet breathing?

    <p>Contraction</p> Signup and view all the answers

    What causes the ribs to project almost directly forward and the sternum to move forward and away from the spine?

    <p>Elevation of the rib cage</p> Signup and view all the answers

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