Respiratory System and Gas Exchange

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Questions and Answers

Which part of the respiratory system acts as an air distributor?

  • Trachea
  • Alveoli
  • Alveolar ducts
  • Bronchioles (correct)

Why must air exchange gases with blood in the respiratory system?

  • To regulate body temperature
  • To provide oxygen to the body's cells (correct)
  • To maintain blood pH
  • To remove excess nitrogen from the blood

Where does the exchange of gases primarily occur in the respiratory system?

  • Bronchi
  • Pharynx
  • Alveolar sacs (correct)
  • Trachea

Why do most cells of the body require the functioning of both the respiratory and circulatory systems for gas exchange?

<p>Cells are too far from air to exchange gases directly with it (D)</p> Signup and view all the answers

Why do most cells of the body require the functioning of both the respiratory and circulatory systems for gas exchange?

<p>To distribute oxygen to cells too far from air (B)</p> Signup and view all the answers

Which part of the respiratory system primarily acts as an air distributor?

<p>Bronchioles (B)</p> Signup and view all the answers

Where does the exchange of gases primarily occur in the respiratory system?

<p>Alveoli (D)</p> Signup and view all the answers

What are the additional functions of the respiratory system, apart from gas exchange?

<p>Filtering, humidifying, and warming the air (D)</p> Signup and view all the answers

How does the respiratory system contribute to the regulation of pH in the body?

<p>By assisting in the elimination of excess carbon dioxide (A)</p> Signup and view all the answers

Which statement best describes the role of the respiratory system in maintaining homeostasis?

<p>It helps to maintain the body's acid-base balance (C)</p> Signup and view all the answers

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