ULTRASTRUCTURE OF INTRA-EPITHELIAL NERVE-ENDINGS IN THE HARD PALATE OF THE RAT, RATTUS-NORVEGICUS
ULTRASTRUCTURE OF INTRA-EPITHELIAL NERVE-ENDINGS IN THE HARD PALATE OF THE RAT, RATTUS-NORVEGICUS
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DOI：
10.1016/0003-9969(85)90090-1
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发表时间：
1985-01-01
影响因子：
3
通讯作者：
VANWILLIGEN, JD
中科院分区：
文献类型：
--
作者：
LIEM, RSB;VANWILLIGEN, JD
超微结构描述了磨牙间腭皱纹乳头上皮内的披针形神经末梢和游离神经末梢的超微结构，这些神经末梢位于基底膜和上皮细胞的底部之间，或位于基底以上的上皮细胞间隙中。神经末梢雪旺细胞内可见上皮细胞的胞浆突起，未见上皮细胞与雪旺细胞的细胞膜连接或融合。神经结构的突起以大量的线粒体、透明的小泡和轴浆网为特征。在披针形末梢，轴突与雪旺细胞之间存在不对称的膜密度，雪旺细胞在质膜的各个侧面都有吞噬活动的迹象。神经末梢覆盖的雪旺细胞基板与上皮基板连续。
The ultrastructure is described of lanceolate and free nerve endings within the epithelium of the papillae of the intermolar palatal rugae, located either between the basement membranes and the bases of the epithelial cells or suprabasally in the intercellular spaces of the epithelium. Cytoplasmic processes of epithelial cells invaginated the Schwann cells of the nerve endings; junctions between or fushion of, the cell membranes of the epithelial cells and the Schwann cells were not found. The neurites of the nervous structures were characterized by numerous mitochondria, clear-cored vesicles and an axoplasmic reticulum. In lanceolate endings, asymmetric membrane densities existed between the neurite and its Schwann cell, the Schwann cell showing signs of pinocytotic activity at all sides of its plasma membrane. The basal lamina of the Schwann cell covering of the nerve endings appeared to be continuous with the basal lamina of the epithelium.