Human Respiratory System Animation Journey
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Questions and Answers

Which of the following is a protective mechanism in the upper Airways?

  • Alveoli
  • Bronchioles
  • Type 1 pneumocytes
  • Nasal hair (correct)

    • What surrounds the bronchioles and distinguishes them from bronchi?

  • Hyaline cartilage
  • Type 1 pneumocytes
  • Nasal hair
  • Elastic fibers and smooth muscle (correct)

    • What is the function of the epiglottis during swallowing?

  • Facilitating gas exchange in the alveoli
  • Filtering out small particles from the inspired air
  • Closing the larynx to prevent food or liquid from entering the lower respiratory tract (correct)
  • Expanding the trachea to allow more air into the lungs

    • Where does gas exchange occur in the respiratory system?

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

    What is responsible for enriching deoxygenated blood with oxygen in the lungs?

    <p>Red blood cells</p> Signup and view all the answers

    What is the estimated number of alveoli in the human respiratory system?

    <p>300 to 400 million</p> Signup and view all the answers

    What is the function of cilia on the nasal mucosa?

    <p>To move in a wave-like manner and push nasal mucus towards the pharynx</p> Signup and view all the answers

    What is the role of the trunks of the bronchial tree?

    <p>Forming branches of the tubular system of the lungs</p> Signup and view all the answers

    What is the role of the epiglottis during swallowing?

    <p>Preventing food and liquid from entering the lower respiratory tract</p> Signup and view all the answers

    Where are the red blood cells responsible for enriching deoxygenated blood with oxygen located?

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

    What is the function of cilia on the nasal mucosa?

    <p>Moving in a wave-like manner to push nasal mucus towards the pharynx</p> Signup and view all the answers

    What surrounds the bronchioles and distinguishes them from bronchi?

    <p>Elastic fibers and smooth muscle</p> Signup and view all the answers

    What is responsible for binding oxygen in the red blood cells?

    <p>Iron ion</p> Signup and view all the answers

    What is the estimated number of alveoli in the human respiratory system?

    <p>300 to 400 million</p> Signup and view all the answers

    What prevents large dirt particles or insects from entering the lower respiratory tract?

    <p>Nasal hair and nasal mucosa</p> Signup and view all the answers

    Where does gas exchange occur in the respiratory system?

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

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