肺结核空洞形成原理肺部结核性病变的干酪样变液化后,它的坏死物经支气管、气管排出,便成了结核性空洞。肺基层组织是小泡,除非有其他因素使之萎缩,它们是永远地维持充气状态。肺小泡的充气状态主要是依靠着肺组织的弹力作用(向心力),与胸膜腔内的负压(离心力),互相协调平衡的机械作用。结核性空洞是肺部一个立体伤口,由于空洞内部组织破坏,弹力作用丧失,受到离心力向各方面的牵引,因此变成圆形空洞。这圆形状态是受向心与离心两方面 Tuberculosis cavity formation principle Pulmonary tuberculous lesions of caseous liquefaction, its necrosis through the bronchial, tracheal discharge, has become a tuberculous cavity. Pulmonary basal tissue is vesicles, unless there is other factors to make it shrink, they are always maintained inflated state. Pulmonary vesicles inflated state is mainly dependent on the elastic force of lung tissue (centripetal force), and the pleural cavity negative pressure (centrifugal force), coordinated and balanced mechanical role. Tuberculous cavity is a three-dimensional lung injury, due to the destruction of empty internal tissue, the loss of elastic force, by the centrifugal force of all aspects of traction, it becomes a round hole. This circular state is both centripetal and centrifugal