Learn alveoli structure and function, focusing on gas exchange, with flashcards.
What is the main function of the alveoli?
Gas exchange between air and blood.
In This Section
1. What is the main function of the alveoli?
2. In which organ are alveoli located?
3. What blood vessel surrounds each alveolus?
4. What gases are exchanged in the alveoli?
5. What is the thin barrier that separates air from blood in the alveoli?
6. What type of cells form most of the alveolar wall?
7. What is the function of Type II alveolar cells?
8. What substance reduces surface tension in the alveoli?
9. What would happen to alveoli without surfactant?
10. What is the name of the process by which gases move across the alveolar membrane?
11. Which side of the heart sends blood to the alveoli?
12. Which side of the heart receives blood after alveolar gas exchange?
13. What are alveolar sacs?
14. What is the name for a single air space within the alveoli?
15. What is the major structural support for the alveoli?
16. How many alveoli are there approximately in human lungs?
17. What is the surface area provided by alveoli for gas exchange?
18. What is the pressure inside the alveoli called?
19. What cells remove debris and pathogens from alveoli?
20. What happens to alveolar pressure during inhalation?
21. What happens to alveolar pressure during exhalation?
22. What is the first structure that air reaches after passing through the bronchioles?
23. What connects alveoli to alveolar sacs?
24. How many cell layers does gas pass through in the alveoli?
25. What condition results from alveolar wall destruction?
26. What layer of connective tissue surrounds alveoli?
27. What immune cells patrol the alveolar spaces?
28. What is the main cause of surfactant deficiency in newborns?
29. What happens during alveolar gas exchange?
30. What keeps alveoli open during exhalation?