Question

when there is no air in initial bronchioles, they does not collapse it is due to​

Answer 1

The bronchioles lack hyaline cartilage, which surround the bronchi and keeps them from collapsing.The bronchioles different units of the lungs, or pulmonary lobules. The bronchioles continue dividing into smaller terminal bronchioles, which divide into the smallest respiratory bronchioles.

Answer 2

Answer:

Alveolar and Club Cell Functions

One type of cell found in the bronchioles (called type 2 alveolar cells) is responsible for the secretion of substances (called surfactants) that ensure the bronchioles so they don't collapse during exhalation and effectively increases the surface area of the lungs.Oct 2, 2019