in mucus-producing cells that line the small airways called bronchioles. A few signs of lung cancer that you may notice are: Head And Neck Cancer: Know Signs That Help Identify The Disease ...

Bronchiole Each bronchus splits again and again into thousands of smaller tubes called bronchioles which take the air deeper into the lungs. Alveoli At the ends of bronchioles are tiny air sacs ...

If the bronchioles or capillaries become stiff (e.g. from smoking) or scarred, then it becomes difficult to squeeze the air out. If the lungs become damaged the alveoli can break down and the ...

On the other hand, emphysema is a condition in which the alveoli at the end of the smallest air passages (bronchioles) of the lungs are destroyed as a result of damaging exposure to cigarette ...

but often extends into respiratory bronchioles and alveoli with intra-alveolar buds of granulation tissue resulting in bronchiolitis obliterans organizing pneumonia (BOOP). The lung architecture ...