5 Questions
What is the approximate surface area of the respiratory surface in the alveoli?
70 square meters
What structures surround the alveoli to facilitate gas exchange?
Capillaries
How thick are the walls of the alveoli?
One cell thick
Through what part of the airway does the volume of air pass to reach the alveoli?
Conducting airway
What primary function occurs at the respiratory surface of the alveoli?
Exchange of gases
Study Notes
Breathing
- Air from the atmosphere passes through the conducting airway and reaches the alveoli
- Alveoli walls are only one cell thick, forming the respiratory surface
- The respiratory surface covers an area of approximately 70 square meters
- The respiratory surface is where the exchange of gases takes place
- Microscopic capillaries surround the alveoli
Learn about the process of breathing, including the passage of air through the conducting airway and the role of alveoli in gas exchange.
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