Respiratory System Quiz
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Questions and Answers

What is the name of the structure that connects the nasal and oral cavities to the larynx?

  • Epiglottis
  • Pharynx (correct)
  • Trachea
  • Bronchi
  • What happens when the chest's capacity increases during ventilation?

  • The turbinate bones obstruct the air flowing through the nasal passages
  • The diaphragm returns to its previous position
  • Air enters through the trachea, inflating the lungs (correct)
  • The lungs recoil and force air out through the bronchi
  • What is the function of the turbinate bones in the nasal passages?

  • Detect odors in the inhaled air
  • Provoke sneezing to expel irritating dust
  • Increase the mucous membrane surface and slightly obstruct the air flow (correct)
  • Warm the inhaled air to body temperature
  • Where is the nasopharynx located?

    <p>Posterior to the nose and above the soft palate</p> Signup and view all the answers

    What is the function of the pharynx?

    <p>Connect the nasal and oral cavities to the larynx</p> Signup and view all the answers

    What is the main cause of hypoxia after thoracic or abdominal surgery and most types of respiratory failure?

    <p>Shunting of blood</p> Signup and view all the answers

    Which type of alveolar cells secrete surfactant, a phospholipid that prevents alveolar collapse?

    <p>Type II Alveolar cells</p> Signup and view all the answers

    What is the result of severe hypoxia when the amount of shunting exceeds 20%?

    <p>Severe hypoxia</p> Signup and view all the answers

    What causes a ventilation–perfusion V ̇/Q ̇ imbalance in the lung?

    <p>Inadequate ventilation, inadequate perfusion, or both</p> Signup and view all the answers

    What is the filling of the pulmonary capillaries with blood known as?

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

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