Del Brio M A, Riera P, García J M, Cernuda R, Alvarez-Uría M
Departamento de Morfología y Biología Celular, Universidad de Oviedo, Spain.
J Submicrosc Cytol Pathol. 1992 Apr;24(2):231-9.
Supraependymal cell clusters and deep invaginations of the ependymal wall, situated in the epithalamic area of the third ventricle of the rabbit have been precisely located by means of semithin serial sections. A study of these structures has been carried out using optical transmission and scanning electron microscopy. The round shaped supraependymal cell clusters revealed two types of cells: type I, of central location and bearing the morphological features of neurons and type II, located peripherically and of possible ependymary origin and nature. In the same epithalamic region, deep invaginations of the ventricular wall, lined by ependymal cells of similar morphology to those coating the rest of the third ventricle, are described. The functional role of both structures is discussed.
通过半薄连续切片，精确确定了位于家兔第三脑室室间区的室管膜上细胞簇和室管膜壁的深陷。利用光学透射和扫描电子显微镜对这些结构进行了研究。圆形的室管膜上细胞簇显示出两种类型的细胞：I型细胞位于中央，具有神经元的形态特征；II型细胞位于周边，可能起源于室管膜。在同一室间区，描述了心室壁的深陷，其内壁由与覆盖第三脑室其余部分的室管膜细胞形态相似的室管膜细胞构成。讨论了这两种结构的功能作用。
