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Questions and Answers
What is the purpose of the thin wall of the alveolus?
What is the purpose of the thin wall of the alveolus?
- To increase the surface area for gas exchange (correct)
- To regulate the pressure inside the alveolus
- To filter out harmful particles from the air
- To produce surfactant to reduce surface tension
Which of the following correctly describes the movement of gases during respiration?
Which of the following correctly describes the movement of gases during respiration?
- Oxygen and carbon dioxide both diffuse from the alveolus to the blood
- Oxygen diffuses from the alveolus to the blood, and carbon dioxide diffuses from the blood to the alveolus (correct)
- Oxygen diffuses from the blood to the alveolus, and carbon dioxide diffuses from the alveolus to the blood
- Oxygen and carbon dioxide both diffuse from the blood to the alveolus
What is the purpose of the film of moisture lining the inside of the alveolus?
What is the purpose of the film of moisture lining the inside of the alveolus?
- To increase the surface tension of the alveolus
- To facilitate the diffusion of gases across the alveolar wall (correct)
- To trap harmful particles in the air
- To produce surfactant to reduce surface tension
What is the purpose of the capillaries surrounding the alveoli?
What is the purpose of the capillaries surrounding the alveoli?
What is the primary cause of emphysema?
What is the primary cause of emphysema?
What is the purpose of the artery that brings deoxygenated blood to the capillaries surrounding the alveoli?
What is the purpose of the artery that brings deoxygenated blood to the capillaries surrounding the alveoli?
What is the purpose of the film of moisture lining the inside of the alveolus?
What is the purpose of the film of moisture lining the inside of the alveolus?
What is the purpose of the thin wall of the capillary surrounding the alveoli?
What is the purpose of the thin wall of the capillary surrounding the alveoli?
What is the purpose of the surfactant produced in the alveoli?
What is the purpose of the surfactant produced in the alveoli?
What is the primary function of the alveoli in the respiratory system?
What is the primary function of the alveoli in the respiratory system?
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