论文部分内容阅读
肺脏不仅有调节通气的作用,而且还具有一套完整而精细的防御机制,使机体免受外界有害因素的侵袭。该机制若遭损害,即可引起多种肺部疾病。本文对其有关问题综述如下。一、粘膜纤毛转运机制呼吸道粘膜纤毛在肺防御机制中占重要地位。其作用主要是清除支气管粘膜中直径大于2～3μm的颗粒。粘膜纤毛清除的效率取决于支气管分泌物的容量及其流变学特性,同时也与纤毛上皮
The lung not only has the function of regulating ventilation, but also has a complete and fine defense mechanism to prevent the body from being attacked by harmful factors from outside. If this mechanism is compromised, it can cause a variety of lung diseases. This article summarizes its related issues as follows. A mucosal cilia transport mechanism of respiratory mucosal cilia in the lung defense mechanism occupies an important position. Its role is to clear the bronchial mucosa larger than 2 ~ 3μm in diameter particles. Mucosal ciliary clearance efficiency depends on the capacity of bronchial secretions and its rheological properties, but also with the ciliated epithelium