Falck B, Aust R, Svanholm H, Bäcklund L
Dept. of O.R.L., Uppsala University Hospital, Sweden.
Rhinology. 1989 Dec;27(4):241-50.
The paranasal sinuses are lined with respiratory mucosa of principally the same structure as in the nasal mucosa but somewhat thinner. This mucosa has a rich blood flow and advanced system of blood vessels regulated mostly by the autonomous nervous system but also by other factors as acid/base balance and endocrine activity. The thickness of the nasal mucosa regulates the nasal breathing resistance and varies with among other factors, body activity. In this investigation we have studied the effect of physical work on the human maxillary sinus mucosa. The investigation shows that, as in the nose, the blood flow and the pulse amplitude are considerably reduced during physical work, in situations of heavy work falling to about half of the normal level, and probably result in the redistribution of blood from the respiratory mucosa. The gas exchange in the paranasal sinus is reduced only to a small extent, the reduction being too small to change the antral gas composition towards pathological conditions.
鼻窦内衬的呼吸黏膜结构与鼻黏膜基本相同，但稍薄一些。这种黏膜有丰富的血流和先进的血管系统，主要由自主神经系统调节，但也受其他因素如酸碱平衡和内分泌活动的影响。鼻黏膜的厚度调节鼻腔呼吸阻力，并且会因身体活动等多种因素而变化。在本研究中，我们研究了体力劳动对人上颌窦黏膜的影响。研究表明，与鼻腔一样，在体力劳动期间，血流量和脉搏幅度会显著降低，在重体力劳动时降至正常水平的一半左右，这可能导致呼吸黏膜的血液重新分布。鼻窦内的气体交换仅略有减少，减少幅度太小，不足以使窦内气体成分朝着病理状态转变。
