A pneumothorax, or a collapsed lung.
Exudates in the alveoli cause rales (crackles).
alveoli are tiny branches of the lungs where blood travels to be oxygenated so it is useful to the rest of the body.
The alveoli have a high surface tension due to a liquid film that covers their walls, making it difficult to inflate them. Additionally, the presence of surfactant helps to reduce surface tension in the alveoli, making inflation easier. When the alveoli are collapsed or have decreased compliance, it can also make it challenging to inflate them.
Yes, shortness of breath and labored breathing is one symptom of chronic lung conditions. The person cannot get enough O2 or get rid of enough CO2 because many of the alveoli are collapsed.
Radiator cap
All of these can cause it: cystic fibrosis, asthma, COPD, lung cancer..an infection in the lungs can also cause a collapsed lung. And, of course, trauma.
Alveoli
It can rupture the pleural cavity and cause a collapsed lung.
An Orca's collapsed dorsal fin will not stand upright while swimming.
alveoli
It could be one of your vaccum lines that collapsed