The Medulla Oblongata and Cardiovascular Regulation Quiz
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Questions and Answers

Which type of cells in the alveolar wall are directly involved in gas exchange?

  • Pulmonary surfactant
  • Type II cells
  • Red blood cells
  • Type I cells (correct)

    • What is the function of pulmonary surfactant?

  • To reduce surface tension in alveoli (correct)
  • To secrete mucus in the airways
  • To transport oxygen in the blood
  • To prevent the collapse of alveoli during inhalation

    • How is oxygen primarily carried in the blood?

  • By dissolving in plasma
  • By binding to red blood cells
  • By binding to hemoglobin molecules (correct)
  • By converting into bicarbonate ions

    • In what forms is carbon dioxide transported in the blood?

    <p>Dissolved in plasma, bound to hemoglobin, or converted into bicarbonate ions</p> Signup and view all the answers

    What is the term for rapid or deep breathing?

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

    Where is the respiratory center of the brain located?

    <p>Medulla oblongata and pons</p> Signup and view all the answers

    What is the term for the contraction and relaxation of muscles involved in respiration?

    <p>Mechanical breathing</p> Signup and view all the answers

    What is the term for the amount of air inhaled or exhaled during normal breathing at rest?

    <p>Tidal volume</p> Signup and view all the answers

    Which term refers to chronic inflammation and narrowing of airways?

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

    How does smoking damage the respiratory system?

    <p>By causing inflammation, mucous production, and destruction of lung tissues</p> Signup and view all the answers

    Which type of cells secrete pulmonary surfactant, a substance that helps reduce surface tension in alveoli and prevents them from collapsing during exhalation?

    <p>Type II cells</p> Signup and view all the answers

    What is the term for difficulty or discomfort in breathing?

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

    Where is the respiratory center of the brain located?

    <p>Medulla oblongata</p> Signup and view all the answers

    What is the term for the amount of air inhaled or exhaled during normal breathing at rest?

    <p>Tidal volume</p> Signup and view all the answers

    What does COPD stand for?

    <p>Chronic Obstructive Pulmonary Disease</p> Signup and view all the answers

    What is the term for the additional air that can be forcefully inhaled after a tidal breath?

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

    What is the term for the uncontrolled growth of abnormal cells in the lung tissue?

    <p>Lung cancer</p> Signup and view all the answers

    How does smoking damage the respiratory system?

    <p>By causing inflammation, mucous production, and destruction of lung tissues</p> Signup and view all the answers

    What changes occur in the respiratory system with age?

    <p>Decreased cilia function and thicker mucus</p> Signup and view all the answers

    What is the term for the negative feedback loop that helps maintain blood pressure at a constant level?

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

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