1.无髓的
1.describes a nerve fibre that lacks a myelin sheath.
1.In young and old rats, there was no significant differences of all unmyelinated fiber parameters between male and female rats.
年轻组与老年组的各项指标中雄性与雌性动物间均不存在显著的性差别。
2.beyond or distal to a ganglion (referring especially to the unmyelinated fibers that originate from cells in autonomic ganglia).
超出神经节后部或末端的（尤指发源于自主神经中枢细胞的无髓鞘神经纤维）。
3.Conclusion The distribution of myelinated and unmyelinated fibers was different in the trigeminal root.
结论有髓纤维和无髓纤维在三叉神经根中的分布不同。
4.Application of the new stereological methods to investigate the age-related changes of the unmyelinated fibers in rat white matter
应用新体视学方法研究大鼠白质无髓神经纤维老年性改变