Can pulmonary emphysema and lung worry erupt _'s general knowledge simultaneously
Simple bronchus asthma is not apt to develop into pulmonary emphysema and lung worry as chronic bronchitis. But often break out, asthma is lasting in shape, especially amalgamate chronic bronchitis, pulmonary emphysema appears then develop into a situation of lung worry to be non- rare. Bronchus asthma increases because of bronchospasm, mucous membrane edema and secretion, make angry dishes of blockage, when inhaling, diaphragm skin shrink strongly, mention at the skin outside the rib, the thoracic cage is expanded, negative pressure increases in the thorax, the alveolus is expanded, the lung is dirty to swell, the whole thoracic cage presents the pulmonary emphysema state. At time when asthma is relieved, there is no clinical manifestation of pulmonary emphysema. But if asthma often breaks out, the mucous membrane of bronchus is often edema, it was narrow that the respiratory tract took shape permanently. Bronchus relaxation while inhaling, the gas can still enter the alveolus, the bronchus shrinks, falls into and closes while exhaling, the inner gas of lung is difficult to discharge, residual volume increases in the alveolus, the elasticity is damaged, so form obstructive pulmonary emphysema. On the basis of chronic obstructive pulmonary emphysema, with the aggravating of pulmonary emphysema, press and increase in the alveolus, oppress the alveolus wall capillary, cause in charge of narrowly or stop up, so that the alveolus breaks, the lung capillary bed is greatly reduced, the lung circulates resistance to increase, the artery high pressure of lung happens. Continue it, chronic to keep in touch with the intersection of function and obstacle and oxygen deficiency, cause tiny artery convulsion of the lung while being getting obstructive, thus aggravate the lung and circulate resistance and lung artery high pressure and cause the vicious circle, impel the right ventricle to be plump and expand and the right heart is depleted.
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