Respiratory Structure and Function Lecture Outline I
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Questions and Answers

What is the main function of the conducting airways in the respiratory system?

  • Producing vasoactive substances for the lungs
  • Generating energy for the cells of the lung
  • Transporting gases to and from the gas exchange airways (correct)
  • Regulating the body's metabolic processes

    • Which structure is responsible for humidifying the inhaled air in the conducting airways?

  • Bronchioles
  • Alveoli
  • Venous plexus of nasal septum
  • Mucous glands and cells (correct)

    • What is the primary role of the mucociliary escalator in the respiratory system?

  • Supporting vocal cord function
  • Removing phlegm to prevent infection (correct)
  • Regulating gas exchange in the alveoli
  • Producing surfactant for alveolar patency

    • What is the main function of gas exchange with the tissues in the respiratory system?

    <p>Exchange CO2 from metabolism for fresh O2</p> Signup and view all the answers

    What opposes the tendency of alveoli to collapse when compressed?

    <p>Interdependence of alveolar arrangement and lung parenchyma</p> Signup and view all the answers

    What is responsible for maintaining alveolar patency by lining the inner surface of the alveolus?

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

    Which structure produces vasoactive substances for the lungs?

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

    What is responsible for sampling the external environment with each breath?

    <p>Mucociliary escalator</p> Signup and view all the answers

    What structure closes the laryngeal inlet when eating or drinking?

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

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