无髓的

The superficial laminae of the spinal dorsal horn, especially lamina II which is composed mainly of small interneurons, receive primary afferent C fibers which transmit peripheral noxious information, and descending projection fibers from central endogenous antinociceptive system.

脊髓背角浅层，尤其是Ⅱ层是接受无髓和薄髓初级传入纤维传递的外周伤害性信息及来自中枢内源性痛抑制系统投射纤维传递的痛抑制信息的主要部位，胶状质主要由局部环路神经元构成。

The CPT values in the affected leg in patient group were significant higher than those in control group at all frequencies. The CPT values in contralateral leg in patient group were significant higher than those in control group at 5Hz whereas there were no significant differences at 250Hz and 2000Hz. The CPT values in affected leg in patient group were significant higher than those in contralateral leg at 250Hz and 2000Hz whereas there were no significant differences at 5Hz. All the CPT values showed the same linear decrease from the dermatome of the compressed root to the dermatomes of the contralateral neighbor dematom.

在用CPT监测8例腰骶单神经根病组患侧和健侧及与正常对照组的不同直径感觉神经纤维功能的研究中发现压迫皮节和其临近皮节的所有频率CPT值无任何显著性差别；患者压迫侧的2000Hz及250HzCPT值及压迫侧和对侧的5HzCPT值与正常对照组都有显著性差别；患者组5HzCPT值患侧和对侧无差别，其他两组均有显著性差别；不管有无显著性差别，神经根病患者组各皮节三频率CPT值均按照压迫皮节，临近皮节，压迫对侧皮节，压迫对侧临近皮节的顺序减小，说明在腰骶单神经根病中Aβ纤维及Aδ纤维及无髓C纤维均受累。

Note the lack of pith, accumulation of starch in cortical cells, and the absence of starch in the rhizodermis and exodermis.

毛茛根的初生结构注意无髓，在皮层细胞有淀粉积累，但在表皮和外皮层缺乏淀粉。

Results The neurohypophysis was composed of unmyelinated nerve fibres, pituicytes and connective tissue abound in blood capillaries.

结果 神经垂体主要由无髓神经纤维、垂体细胞及富含毛细血管的结缔组织组成。

Under the transmission electron microscope, the neurohypophysis was composed of unmyelinated nerve fibers, pituicytes and connective tissue abound in blood capillaries.

在透射电镜下观察，神经垂体主要由无髓神经纤维、垂体细胞及富含毛细血管的结缔组织组成。

Preferential small myelinated and unmyelinated fiber loss correlated to the cases of severe pain.

外周小的有髓纤维和无髓纤维缺失与严重疼痛的病例有关。

The latter group showed marked pain, in particular, severe mechanical hyperalgesia, and predominantly small myelinated and unmyelinated fiber loss.

后一组突出表现为疼痛，特别是严重的机械性痛觉过敏，主要是小的有髓纤维和无髓纤维缺失。

Methods: Internodal length, the densities of myelinated fiber and unmyelinated fiber, g ratio(axon diameter:fiber diameter) of sural nerves from 7 peroneal muscular atrophy patients were measured and compared between HMSNⅠand Ⅱ.

测定7例腓骨肌萎缩症（遗传性运动感觉神经病，HMSNⅠ和Ⅱ型）患者腓肠神经的节间长度、有髓纤维和无髓纤维的密度以及轴突直径与纤维直径之比，并比较HMSNⅠ和Ⅱ型间上述参数的差异。

In the end, we simulate the influence of eachmembrane parameter to the propagation velocity for myelinated fibers andunmyelinated fibers, respectively, which can enhance the usability of the twocomputational models.

最后，分别仿真了有髓及无髓神经纤维细胞膜各参数的变化对兴奋传递速度的影响，增强了两个计算模型的可应用性。

Nickel-Titanium instruments have become widely used in the endodontic treatment. However, their unexpected separation was a serious concern in endodontics. To date, no scientific methods have been developed to evaluate the functional lifespan of Ni-Ti instruments. In this study, we used resonance frequency analysis to nondestructively detect the fatigue life of Ni-Ti instruments to determine the feasibility of this technique for use in the clinic.

镍钛合金根管锉已经广泛的使用在牙髓病的治疗上，但其无预警的断裂也是令牙医师关心的问题，之前并无一科学性的方法来评估镍钛合金根管锉的寿命，而本研究室利用自然频率的分析方式对镍钛合金根管锉做非破坏性的疲劳检测，确定此方式可行且在临床上有应用的价值。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了