Human Respiratory System
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Questions and Answers

What is the thickness of the walls of the alveoli?

  • One cell thick (correct)
  • Three cells thick
  • Four cells thick
  • Two cells thick
  • Where does the exchange of gases take place in the respiratory system?

  • Bronchi
  • Trachea
  • Larynx
  • Alveoli (correct)
  • What is the approximate surface area of the respiratory surface?

  • 50 square meters
  • 80 square meters
  • 70 square meters (correct)
  • 60 square meters
  • What surrounds the alveoli to facilitate gas exchange?

    <p>Microscopic capillaries</p> Signup and view all the answers

    Through which part of the respiratory system does air from the atmosphere reach the alveoli?

    <p>Conducting airway</p> Signup and view all the answers

    Study Notes

    Breathing

    • Air from the atmosphere passes through the conducting airway and reaches the alveoli
    • Alveoli walls are only one cell thick, forming the respiratory surface
    • The respiratory surface covers an area of approximately 70 square meters
    • The respiratory surface is where the exchange of gases takes place
    • Microscopic capillaries surround the alveoli

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    Description

    Learn about the process of breathing and how air moves through the conducting airway to the alveoli, where gas exchange takes place.

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