Respiratory System Anatomy: Nose Functions and Cilia
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Questions and Answers

What is the main factor affecting the breathing rate based on the provided text?

  • Increased pH levels
  • Increased H+ concentration (correct)
  • Increased O2 concentration
  • Decreased CO2 concentration
  • What stimulus is required to increase the breathing rate due to a large drop in O2 levels?

  • Low blood pH
  • High CO2 levels (correct)
  • High blood pressure
  • High body temperature
  • Which gas has greater solubility based on the information provided?

  • CO
  • H
  • N
  • O2 (correct)
  • What causes hyperventilation according to the text?

    <p>High CO2 levels</p> Signup and view all the answers

    At high altitudes, what is the typical cause of altitude sickness as per the provided information?

    <p>Low blood O2 levels</p> Signup and view all the answers

    When does the development of respiratory bronchioles begin according to the text?

    <p>Week 4</p> Signup and view all the answers

    What is the major function of the nose in the respiratory system?

    <p>Filtering debris and pathogens</p> Signup and view all the answers

    Where does the gas exchange directly occur in the respiratory system?

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

    Which structure closes off the trachea during swallowing to direct food to the esophagus?

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

    Where does the respiratory zone of the respiratory system begin?

    <p>Respiratory bronchiole</p> Signup and view all the answers

    What is the role of alveolar macrophages in the respiratory system?

    <p>Trap debris and pathogens</p> Signup and view all the answers

    Which pressure is always lower than intra-alveolar pressure in the respiratory system?

    <p>Intrapleural pressure</p> Signup and view all the answers

    What causes the pressure change leading to inspiration and exhalation in the respiratory system?

    <p>Contraction of diaphragm and intercostal muscles</p> Signup and view all the answers

    What defines the act of breathing in the respiratory system?

    <p>Pulmonary ventilation</p> Signup and view all the answers

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