what is alveolar sac and what function it is doing
Pulmonary Alveolar Proteinosis (PAP)
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 - Physiopedia
Learn About Function Of Alveolus | Chegg.com
Respiratory
Definition of alveoli - NCI Dictionary of Cancer Terms - NCI