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condition characterized by widespread destruction of the gas exchange tissues, resulting in abnormally large air spaces. Light affected by emphysema show loss

walls and alveolar destruction. As a result, the area intended for the exchange

, and air to bypass the lungs decreases. In addition, loss >> << elastic walls of the damaged alveoli of the lungs results in order to expand the chest. Expansion of the lungs compress small bronchi and thereby increase the resistance of air flow. This is especially noticeable during exhalation when the muscle of the chest and abdomen increase vnutryhrudnoho pressure and further reduction of air passing through the small bronchi. Tobacco is the most common cause of emphysema. In smokers, emphysema is usually coexists with chronic obstructive. In combination, these two conditions are known as

(COPD). Approximately 15 percent of regular smokers of cigarettes develop progressive emphysema usually starts lasix buy online in the fourth or fifth decade. The reason that emphysema develops in some smokers but not in other, usually unknown. One of the factors that drive some people, emphysema is a hereditary deficiency, >> << that normally protects the lungs from damage caused by cigarette smoke. Smokers who inherit the abnormal gene alpha-1 antitrypsin from both parents, often develop progressive, severe emphysema, especially in the lower lungs, begin before the age of 40 years. Nonsmokers who have a deficiency of the enzyme, usually the same. characterized by damaged alveoli inflate that to form exceptionally large air space, especially at the top of the lungs. This condition sometimes occurs in healthy young adults. Bullous emphysema often first comes to mind when abnormal air space ruptures, leaking air into the pleural cavity and causes the affected >> << to collapse (see). The victim felt a sudden sharp chest pain and. Respiratory failure requires the introduction of the tube through the chest wall to allow air to leave. In severe cases,

may be necessary to restore the area of ​​the lungs to rupture. Aspects of emphysema topics discussed in the following areas Britannica. Articles from Britannica encyclopedias for elementary and secondary schools. Serious respiratory problems, emphysema causes irreversible damage to the alveoli in the lungs. This makes it difficult to breath and can be fatal. .