Sato K
Department of Otolaryngology-Head and Neck Surgery, Kurume University, School of Medicine, Japan.
Ann Otol Rhinol Laryngol. 1998 Dec;107(12):1023-8. doi: 10.1177/000348949810701205.
Light and electron microscopic investigations of the reticular fibers (RFs) in the vocal fold mucosa were carried out on excised human adult larynges. The results are summarized as follows. Reticular fibers were found in the superficial and intermediate layers of the lamina propria of the vocal fold mucosa. They were most abundantly discovered around the vocal fold edge, and they decreased toward the superior and inferior portions of the vocal folds. The RFs were composed of slender fibrils, about 40 nm in diameter, and having cross-bands with a periodicity of about 67 nm. They were found in close association with the basal lamina of the epithelium and blood vessels. The slender fibrils of the RFs did not form any bundles, but branched and anastomosed. The RFs formed delicate 3-dimensional networks, and the spaces among the fibers were relatively large. Glycoprotein and glycosaminoglycan (proteoglycan) were situated around the RFs and in the spaces among the fibers. Elastic fibers were located in the spaces among the RFs. The 3-dimensional structure of the RFs in the vocal fold mucosa, first demonstrated in this study, appears to be one of the key components of the structural maintenance and viscoelasticity of the vibrating vocal fold tissue.
对切除的成人人类喉部进行了声带黏膜网状纤维(RFs)的光镜和电镜研究。结果总结如下。在声带黏膜固有层的浅层和中层发现了网状纤维。它们在声带边缘周围最为丰富,并且朝着声带的上部和下部减少。网状纤维由直径约40nm的细长纤维组成,具有约67nm周期的横纹。它们与上皮和血管的基膜紧密相连。网状纤维的细长纤维不形成任何束状,而是分支并相互吻合。网状纤维形成精细的三维网络,纤维之间的空间相对较大。糖蛋白和糖胺聚糖(蛋白聚糖)位于网状纤维周围和纤维之间的空间中。弹性纤维位于网状纤维之间的空间中。本研究首次证明的声带黏膜网状纤维的三维结构似乎是振动声带组织结构维持和粘弹性的关键组成部分之一。