BRIGHTMAN M W, PALAY S L
J Cell Biol. 1963 Nov;19(2):415-39. doi: 10.1083/jcb.19.2.415.
The ciliated ependyma of the rat brain consists of a sheet of epithelial cells, the luminal surface of which is reflected over ciliary shafts and numerous evaginations of irregular dimensions. The relatively straight lateral portions of the plasmalemma of contiguous cells are fused at discrete sites to form five-layered junctions or zonulae occludentes which obliterate the intercellular space. These fusions occur usually at some distance below the free surface either independently or in continuity with a second intercellular junction, the zonula adhaerens. The luminal junction is usually formed by a zonula adhaerens or, occasionally, by a zonula occludens. The finely granular and filamentous cytoplasm contains supranuclear dense bodies, some of which are probably lysosomes and dense whorls of perinuclear filaments which send fascicles toward the lateral plasmalemma. The apical regions of the cytoplasm contain the basal body complexes of neighboring cilia. These complexes include a striated basal foot and short, non-striated rootlets emanating from the wall of each basal body. The rootlets end in a zone of granules about the proximal region of the basal body, adjacent to which may lie a striated mass of variable shape. All components of the basal body complex of adjacent cilia are independent of each other.
大鼠脑的纤毛室管膜由一层上皮细胞组成，其腔面反折覆盖在纤毛轴和许多大小不一的突起上。相邻细胞质膜相对较直的外侧部分在离散位点融合，形成五层连接或紧密连接，从而封闭细胞间隙。这些融合通常发生在游离表面下方一定距离处，可独立出现，也可与第二种细胞间连接即黏着小带连续出现。腔面连接通常由黏着小带形成，偶尔也由紧密连接形成。细颗粒状和丝状的细胞质含有核上致密小体，其中一些可能是溶酶体，还有核周细丝的致密螺旋，这些细丝束向外侧质膜延伸。细胞质的顶端区域含有相邻纤毛的基体复合体。这些复合体包括一个横纹状的基足和从每个基体壁发出的短的、无横纹的小根。小根在基体近端区域的颗粒区终止，在其附近可能有一个形状可变的横纹状团块。相邻纤毛基体复合体的所有组成部分相互独立。
