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post in: Health Date:19 Oct 2017, 15:26 views:2990
Background, chronic obstructive pulmonary disease (copd) is a condition in which there is limited airflow in the lungs. The disease develops and worsens over time, and although it is not reversible, its progress can be slowed with therapy. Although patients can breathe in normally, changes in the small airways cause the walls to narrow during expiration, making it hard to breathe out.
In many patients with copd, the small sacs where oxygen and carbon dioxide are exchanged are destroyed, force gradually starving the body of oxygen. Copd is associated with a set of breathing-related symptoms: Being out of breath, at first when doing physical activities, but as lung function deteriorates, also at rest. Chronic cough, spitting or coughing mucus (phlegm the ability to exhale (breathe out) gets worse over time.
The lungs are located in the chest cavity and are responsible for respiration. The alveoli are small sacs where oxygen is exchanged in the lungs. The two major diseases in this category are emphysema and chronic bronchitis, both covered in this report.
The third, less common disease, is obstructive bronchiolitis, an inflammatory condition of the small airways.
Asthma shares some of the same symptoms, but is a very different disease.
People can have asthma and copd at the same time.
Because smoking is the most common cause of both emphysema and chronic bronchitis, these conditions often develop together and frequently require similar treatments and approaches.
When chronic bronchitis occurs together with emphysema, it is often difficult for a physician to distinguish between the two.