Respiratory System Anatomy: Nose Functions
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Questions and Answers

What primarily causes an increase in breathing rate?

  • Elevated levels of H+ due to high CO2 concentration (correct)
  • High levels of oxygen in the blood
  • Low blood pressure
  • Increased pH from a decrease in CO2 concentration

    • What is the main cause for the body to increase breathing rate during strenuous exercise?

  • Elevated body temperature
  • High O2 levels in the blood
  • Increased CO2 levels in the muscles
  • H+ ions resulting from lactate production (correct)

    • What stimulates chemoreceptors to increase breathing rate?

  • Increase in blood pH
  • High oxygen levels in the blood
  • Significant drop in oxygen levels (correct)
  • Low pressure of all gases in the air

    • How is most oxygen transported in the blood?

    <p>Attached to hemoglobin in erythrocytes</p> Signup and view all the answers

    What is the primary function of fetal breathing movements?

    <p>To practice breathing movements for birth</p> Signup and view all the answers

    What causes altitude sickness to occur typically above 8000 feet?

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

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

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

    Where does gas exchange primarily occur in the respiratory system?

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

    What is the function of cilia in the nose?

    <p>Push mucus and debris towards the throat</p> Signup and view all the answers

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

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

    What is the purpose of alveolar macrophages in the lungs?

    <p>To protect against pathogens</p> Signup and view all the answers

    A special nerve at the carina induces violent coughing when a foreign body is present. Which nerve is responsible for this response?

    <p>Glossopharyngeal nerve</p> Signup and view all the answers

    Which of the following describes the primary function of pulmonary ventilation?

    <p>6</p> Signup and view all the answers

    What is the role of visceral pleura in lung anatomy?

    <p>Surround the lung tissue directly</p> Signup and view all the answers

    Which term describes the maximum amount of air a person can inhale after taking a normal breath?

    <p>Inspiratory reserve volume</p> Signup and view all the answers

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