无髓神经纤维

无髓神经纤维的卫星细胞内线粒体肿胀；

Swollen mitochondria were observed in satellite cell of unmyelinated nerve fiber .

有髓神经纤维长入S1，无髓神经纤维长入S3。术后3周无髓纤维通过再生室，有髓纤维长入S3。

Myelinated and unmyelinated fibers grew to S 1 and S 3 respectively .

神经垂体的无髓神经纤维及赫令氏体内显有Vp样颗粒。

The Vp-like granules were found in the unmyelinated fibers and Herring bodies of the neurohypophysis .

特别是在1mm处可见雪旺细胞包裹的无髓神经纤维。

Especially , unmyelinated nerve fibers enveloped by Schwann cells were observed in the 1 st block .

无髓神经纤维终止于毛细血管周围或仅贴垂体细胞。

The unmyelinated nerve fibers either terminate around the blood capillaries or approach near pituicytes .

胰腺的导管、血管和淋巴管、有髓和无髓神经纤维，均穿行于胰结缔组织内。

Pancreatic ducts , blood and lymphatic vessels , myelinated and unmyelinated nerve fibers , passed within connective tissue .

深部松果体中存在大量来自缰核和后连合的有髓和无髓神经纤维。

Numerous myelinated and unmyelinated nerve fibers coming from the habenular and the posterior commissure reached the deep pineal gland .

病理表现不一，主要为有髓神经纤维变性、丢失、再生伴节段性脱髓鞘与复髓鞘，无髓神经纤维变性伴大量再生以及微血管病变。

The morphological changes include degeneration , loss , regeneration of myelinated nerve libers accompanied by segmental demyelination and remyelination , degeneration and regeneration of unmyelinated nerve fibers and microangiopathy .

完整的大型膜包分泌颗粒（100~300nm），不仅大量存在于无髓神经纤维的终末或膨体内，而且也见于血管周隙内。

The intact secretory granules ( 100 ~ 300nm ) coated with membrane exist not only in the endings or varicosities of the unmyelinated nerve fibers but also occasionally in the perivascular space .

雄性大鼠无髓神经纤维总体积老年性降低虽然没有显著性，但是降低高达31%。

The total volume of the unmyelinated fibers in white matter of aged male rats was decreased by 31 % when compared to that of young male rats even though the difference was not statistically significant .

结缔组织中除有成纤维细胞和颗粒细胞外还充满胶原原纤维和肌原纤维，无髓神经原纤维也较多。

All cells have secretory and absorptive functions besides4ibblasts and granular cells in connective tissue , there are myofibril , collagenous fibril and unmyelinated fibers .

损伤区后可看到大量丛状聚集、区域化分布的无髓再生纤维，GAP43在损伤区前朗飞氏结处的轴突和损伤区后的细小无髓神经纤维中均有表达。

There are many clustered , regional distributed bundles of putative unmyelinated regenerating axons in post-injury region . GAP-43 is expressed in both paranodal region of nerve fibers proximal to the lesion site and fine unmyelinated fibers distal to the lesion site . 4 .