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Respiratory System Anatomy and Physiology
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Respiratory System Anatomy and Physiology

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Questions and Answers

What is the effect of the contraction of the diaphragm on the thoracic cavity dimensions?

  • It has no effect on the thoracic cavity dimensions
  • It increases the anteroposterior dimension of the thoracic cavity
  • It decreases the vertical dimension of the thoracic cavity
  • It increases the vertical dimension of the thoracic cavity (correct)

    • What is the primary function of the contraction of the chest muscles in the respiratory process?

  • To decrease the lung volume
  • To stabilize the ribcage
  • To facilitate exhalation
  • To increase the lung volume (correct)

    • What happens to the thoracic cavity when the diaphragm contracts and descends towards the abdominal cavity?

  • It shifts to the right side
  • It remains the same
  • It decreases in volume
  • It increases in volume (correct)

    • What is the effect of the contraction of the diaphragm on inhalation?

    <p>It facilitates inhalation</p> Signup and view all the answers

    What happens to the ribcage when the chest muscles contract?

    <p>It elevates and moves outward</p> Signup and view all the answers

    What is the result of the expansion of the ribcage during inhalation?

    <p>An increase in lung volume</p> Signup and view all the answers

    What is the primary role of the diaphragm in the respiratory process?

    <p>To facilitate inhalation</p> Signup and view all the answers

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