7 Questions
What is the main function of the one-cell-thick wall of the alveolus?
Facilitate diffusion of gases
Why does oxygen diffuse from the air in the alveolus to the blood?
To reach lower concentration in the blood
How does carbon dioxide move during gas exchange in the alveolus?
From higher concentration in blood to lower concentration in air
Which vessel brings deoxygenated blood to the capillaries in the lungs?
Artery to the lungs
Why is it important for the alveolus to be lined with a film of moisture?
To enhance diffusion of gases
What happens to oxygenated blood after it leaves the capillaries of the alveoli?
Taken to the heart via veins from the lungs
What is the role of thin walls in both alveoli and capillaries during gas exchange?
To facilitate diffusion of gases
Test your knowledge on the structure of the respiratory system, focusing on the trachea, bronchi, and larynx. Identify key features and functions of these important respiratory organs.
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