Alveoli Flashcards
1
Q
What is in the respiratory zone of the lungs?
A
Little hollow air sacs
2
Q
Where gas exchange happens, how many of these little hollow air sacs (alveoli) are there?
A
About 300 million in lungs
3
Q
What connect with what?
A
Alveolar ducts connect with bronchioles
4
Q
What join to what?
A
Alveolar ducts join to little clusters of alveolar sacs
