SUBEPENDYMAL PLATE AND ASSOCIATED EPENDYMA IN DOG - ULTRASTRUCTURAL STUDY
SUBEPENDYMAL PLATE AND ASSOCIATED EPENDYMA IN DOG - ULTRASTRUCTURAL STUDY
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DOI：
10.1007/bf01098647
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发表时间：
1972-01-01
期刊：
影响因子：
--
通讯作者：
JOLLY, RD
中科院分区：
文献类型：
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作者：
BLAKEMORE, WF;JOLLY, RD
本文描述了狗尾状核前部室管膜和室管膜下区的超微结构。该物种的区域比以前在大鼠中记录的区域更复杂。室管膜细胞有细长的突起，形成纤维层。在检查的所有犬中均观察到少量伸长细胞。室管膜下细胞，不包括小胶质细胞，可分为两组，那些具有大的浅色核和那些具有较小的深色核。后一组具有未分化的细胞质，被认为是由室管膜下板细胞组成。核大而淡的细胞群由伸长细胞、异位室管膜细胞和星形胶质细胞组成。通常很难区分该组中的细胞。这两种类型的室管膜下细胞被认为是在有丝分裂。室管膜下细胞的命运进行了讨论，并得出结论，一定比例的diein situation，而其他可能迁移到远处的神经节或形成巢在相邻的神经节。本文还讨论了室管膜下板细胞与苍白有核细胞的关系。
The ultrastructural appearances of the ependyma and subependymal region in the anterior part of the caudate nucleus in the dog are described. The region in this species is more complex than that previously recorded in the rat. Ependymal cells have slender processes that contribute to the fibrillar layer. A small number of tanycytes were seen in all dogs examined. The subependymal cells, excluding microglia, can be divided into two groups, those with large pale nuclei and those with smaller darker nuclei. The latter group have undifferentiated cytoplasm, and is considered to be composed of subependymal plate cells. The group with large pale nuclei is composed of tanycytes, ectopic ependymal cells and astrocytes. It was often difficult to differentiate between cells within this group. Both types of subependymal cells were seen in mitosis.The fate of subependymal cells is discussed and it is concluded that a certain percentage diein situwhile others may migrate either into the distant neuropil or form nests in the adjacent neuropil. The relationship between the subependymal plate cells and the pale nucleated cells is also discussed.