WHY ALVEOLI DO NOT COLLAPSE IN NORMAL CONDITIONS?

An alveolus is about 0.2 millimeters in size and 0.2-2.5 micrometers in thickness.It is very thin and delicate yet it is not collapsing.

Reasons for that are:

1. Presence of surfactant factor.
2. Honey shape design.
3. Alveolar interdependence.
4. Negative pleural pressure.
5. Presence of 1200 ml of residual air

[Vietnamese]

WHY ARE THE ROOFS NOT AVAILABLE IN NORMAL CONDITIONS?

One alveoli is about 0.2 millimeter in size and 0.2-2.5 millimeter thick. It is very thin and fragile but does not flatten.

The reasons for this are:

1. The presence of an active factor (surfactant).
2. How to arrange honeycomb.
3. Interdependence of the alveoli.
4. Negative pressure of the pleural cavity.
5. Presence of 1200 ml of residue gas.

[Vocab]

1. Alveolus /ælˈviː.ə.ləs/ (n): Alveoli
   Alveoli /ælˈviː.ə.laɪ/ (n): The alveoli
2. Collapse / kəˈlæps / (v): Fall, collapse
3. Delicate /ˈdel.ə.kət/ (adj): Fragile, vulnerable
4. Surfactant /sɝːˈfæk.tənt/ (n): (SURFace ACTive AgeNTs) Active substances
5. Residual /rɪˈzɪdʒ.ju.əl/ (adj): residual, residue

Welcome to read more lessons in the section Lectures of anhvanyds

Thanh Minh Khanh
#anhvanyds
#anatomy
#physiology