These substances can also attack cells ...

Normally functioning lungs flexible, efficient expansion and recoil as air passes freely through the bronchus to the alveoli, where oxygen moves into the bloodstream and carbon dioxide is filtered out. When a person inhales cigarette smoke and some other stimuli, her immune system responds by releasing substances that are designed to protect your lungs from smoke. These substances can also attack the cells of the lungs, but the body normally inhibits such action with the release of other substances. Smokers and people with an inherited defect, however, no such prevention occurs and the lung tissue is damaged so that it loses its elasticity. The small lasix generic passageways (bronchioles) leading to the collapse of the alveoli, capturing air in the alveoli. Alveoli, unable to move effectively and return air for the expansion and rupture. As the disease progresses, coughing and shortness of breath occur.

In advanced stages, the lungs can not provide enough oxygen in the blood. Emphysema often occurs with other respiratory diseases, particularly chronic. These two diseases are often referred to as one disease called chronic obstructive pulmonary disease (COPD). .