What is the difference between alveolar duct and alveoli? - Quora
The first passages of the respiratory zone, which have alveoli in their walls, are called: (a) Terminal bronchioles (b) Respiratory bronchioles (c) Alveolar ducts (d) Alveolar sacs. | Homework.Study.com
Alveoli Definition, Location, Anatomy, Function, Diagrams | Human anatomy and physiology, Respiratory therapy, Anatomy and physiology
Alveolar duct - Location, Function and Pictures
Pulmonary alveolus - Wikipedia
Bronchioles and alveoli in the lungs - Mayo Clinic