Respiratory System Anatomy: Nose and Pharynx
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Questions and Answers

What is the main factor that affects breathing rate?

  • Body temperature
  • Blood pressure
  • Carbon dioxide concentration in the blood (correct)
  • Oxygen concentration in the air
  • What triggers an increase in breathing rate during strenuous exercise?

  • High blood pH
  • Accumulation of lactate in tissues (correct)
  • Increased oxygen levels in the blood
  • Decreased carbon dioxide levels in the blood
  • At what altitude does altitude sickness typically start?

  • Below 1000 feet
  • Around 8000 feet (correct)
  • Around 5000 feet
  • Above 10,000 feet
  • Which gas has greater solubility in the blood?

    <p>Carbon dioxide</p> Signup and view all the answers

    What is hypernea?

    <p>Increased rate and depth of breathing</p> Signup and view all the answers

    What is the function of fetal breathing movements in utero?

    <p>The function is not clear</p> Signup and view all the answers

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

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

    In the nose, what is the role of cilia?

    <p>To 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

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

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

    What is the main function of the respiratory membrane in the lungs?

    <p>To allow gases to cross via simple diffusion</p> Signup and view all the answers

    Which term describes the act of moving air in and out of the lungs?

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

    What causes inspiration and exhalation during breathing?

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

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