Toriya R, Arima T, Kuraoka A, Uemura T
Department of Otolaryngology, Faculty of Medicine, Kyushu University, 3-1-1-Maidashi, Higashi-ku, Fukuoka 812, Japan.
Eur Arch Otorhinolaryngol. 1994;251 Suppl 1:S38-42. doi: 10.1007/BF02565217.
The morphologic features of the human cochlear aqueduct were examined using both light and electron microscopy. The lumen of the cochlear aqueduct was observed to be filled with dense, irregular connective tissue corresponding to dura mater. At the entrance to the cerebrospinal fluid space, the dense connective tissue in the ductal lumen was covered with a thin layer of a few flattened cells, which was contiguous with the arachnoid membrane of the brain. A simple low cuboidal epithelium also separated the perilymphatic space from the lumen of the duct. Our observations confirm the presence of a barrier membrane at the opening to the perilymphatic space, and suggest that no transport occurs in the human cochlear aqueduct.
利用光学显微镜和电子显微镜对人蜗水管的形态学特征进行了检查。观察到蜗水管管腔内充满了与硬脑膜相对应的致密、不规则结缔组织。在脑脊液间隙的入口处，导管腔内的致密结缔组织被一层由少数扁平细胞构成的薄层覆盖，该薄层与脑蛛网膜相连。一层单层低立方上皮也将外淋巴间隙与导管腔分隔开。我们的观察结果证实了在外淋巴间隙开口处存在屏障膜，并表明人蜗水管中不存在物质运输。
