| The respiratory bronchioles, alveolar ducts, and alveoli occupy the space between the core and septal structures. |
| Scientists also suspect that air pollutants might dampen the growth of alveoli, tiny air sacs in the lungs. |
| A continuous film covers the mucosa of the lungs, extending from the alveoli to the larger airways. |
| Many alveoli in the functioning lung can remain at low volume for extended periods. |
| The tooth row is present throughout the entire preserved length of the jaw and possesses 16 teeth and empty alveoli. |
| The pulmonary endothelium represents a very large surface area, the major part of which lies in close contact with the alveoli. |
