10 Questions
What is the purpose of the thin wall of the alveolus?
To increase the surface area for gas exchange
Which of the following correctly describes the movement of gases during respiration?
Oxygen diffuses from the alveolus to the blood, and carbon dioxide diffuses from the blood to the alveolus
What is the purpose of the film of moisture lining the inside of the alveolus?
To facilitate the diffusion of gases across the alveolar wall
What is the purpose of the capillaries surrounding the alveoli?
To facilitate the exchange of gases between the air and the blood
What is the primary cause of emphysema?
Smoking cigarettes
What is the purpose of the artery that brings deoxygenated blood to the capillaries surrounding the alveoli?
To transport deoxygenated blood to the lungs for gas exchange
What is the purpose of the film of moisture lining the inside of the alveolus?
To facilitate the diffusion of gases across the alveolar wall
What is the purpose of the thin wall of the capillary surrounding the alveoli?
To facilitate the diffusion of gases across the capillary wall
What is the purpose of the surfactant produced in the alveoli?
To reduce the surface tension of the alveoli and prevent them from collapsing
What is the primary function of the alveoli in the respiratory system?
To facilitate the exchange of gases between the air and the blood
Learn about the structure of the lungs and the process of gas exchange in the respiratory system. Explore how oxygen and carbon dioxide are exchanged during respiration.
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