Anatomy of Respiratory System and Pharynx Lecture Quiz
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Questions and Answers

What is the main function of the paranasal sinuses?

  • Produce sound resonance
  • Conduct air
  • Humidify inhalated air
  • Lighten the weight of the skull (correct)

    • Which of the following is NOT a structure of the pharynx?

  • Nasopharynx
  • Epiglottis (correct)
  • Larygeopharynx
  • Oropharynx

    • What is the main function of the larynx?

  • Produces sound
  • Conducts air (correct)
  • Prevents food and drink from entering trachea
  • Humidify inhalated air

    • Which structure is NOT part of the wall of bronchioles?

    <p>Tracheal cartilage</p> Signup and view all the answers

    About how many alveoli are present in each lung?

    <p>150 million</p> Signup and view all the answers

    What is the function of the alveolus?

    <p>To exchange gases between inhaled air and blood</p> Signup and view all the answers

    Which structures make up the respiratory membrane for gas exchange in the alveolus?

    <p>Alveolar epithelium, capillary endothelial cells, and fused basement membrane</p> Signup and view all the answers

    How many lobes does the right lung have?

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

    What is the function of the pleural fluid?

    <p>To reduce friction between the parietal and visceral surfaces during breathing</p> Signup and view all the answers

    Which structure lines the inner surface of the thoracic cavity?

    <p>Parietal pleura</p> Signup and view all the answers

    What are the components of the respiratory membrane for gas exchange in the alveolus?

    <p>Alveolar epithelium and endothelial cells</p> Signup and view all the answers

    What is the main function of the pleural fluid?

    <p>To provide lubrication and reduce friction between the parietal and visceral surfaces</p> Signup and view all the answers

    How many lobes does the right lung have?

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

    What is the composition of the pleural membranes associated with the lungs?

    <p>Parietal pleura and visceral pleura</p> Signup and view all the answers

    Which structure lines the inner surface of the thoracic cavity?

    <p>Parietal pleura</p> Signup and view all the answers

    What is the primary purpose of the anular ligaments in the wall of the trachea?

    <p>To provide structural support to the tracheal cartilage</p> Signup and view all the answers

    Which of the following is NOT a function of the paranasal sinuses?

    <p>Conduct air</p> Signup and view all the answers

    In the bronchial tree, what is the role of the muscularis in the wall of bronchioles?

    <p>Facilitate bronchoconstriction and bronchodilation</p> Signup and view all the answers

    Which structure in the larynx is responsible for preventing food and drink from entering the trachea?

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

    What function does the laryngeopharynx serve in the respiratory system?

    <p>Passage way for swallowed food and drink between oral cavity and esophagus</p> Signup and view all the answers

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