Samandari F, Bogusch G
Acta Anat (Basel). 1981;109(2):149-56.
The pericellular structures of the three ganglia situated in the petrous bone were investigated by light and electron microscopy in the guinea pig. All perikarya of the ganglion spirale cochleae and the ganglion vestibulare are surrounded by a myelin sheath which consists of 10-15 layers. Relative to their size, the cells of the ganglion spiral are characterized by a thicker myelin sheath than those of the ganglion vestibulare. The peripheral and central processes of the ganglion cells show a stronger myelination than the corresponding perikarya. The decrease in myelin from the nerve fibre to the perikarya does not proceed continuously but occurs only after the last interanular segment. At the peripheral processes, the myelin sheath ends a few micrometres before reaching the sensory epithelial layer. The perikarya of the ganglion geniculi nervi facialis are unmyelinated.
通过光学显微镜和电子显微镜对豚鼠岩骨中三个神经节的细胞周围结构进行了研究。螺旋神经节和前庭神经节的所有神经元胞体均被由10 - 15层组成的髓鞘所包围。相对于其大小，螺旋神经节的细胞具有比前庭神经节的细胞更厚的髓鞘。神经节细胞的外周突和中枢突比相应的神经元胞体表现出更强的髓鞘形成。从神经纤维到神经元胞体的髓鞘减少并非连续进行，而是仅在最后一个节间段之后发生。在外周突处，髓鞘在到达感觉上皮层前几微米处终止。面神经膝状神经节的神经元胞体无髓鞘。
