Properties of single-fiber spindle group II EPSPs in triceps surae motoneurons.
Properties of single-fiber spindle group II EPSPs in triceps surae motoneurons.
复制标题
小腿三头肌运动神经元中单纤维纺锤体 II 组 EPSP 的特性。
DOI：
10.1152/jn.1980.44.4.713
复制
发表时间：
1980
影响因子：
2.5
通讯作者：
Sypert,GW
中科院分区：
文献类型：
--
作者：
Munson,JB;Fleshman,JW;Sypert,GW
5.上升时间与半宽度的关系在纺锤体组II EPSPs表现出相当大的分散。由慢组II纤维产生的EPSP具有较短的EPSP潜伏期（从终端电位测量）和较短的上升时间比由快组II纤维产生的EPSP。6.分析纺锤体组II运动神经元单纤维EPSP的单一痕迹表明，有限的和连续的范围内的EPSP振幅。这些数据被解释为进一步的证据的单突触性质的传输。7.背柱中纺锤体II类传入纤维通过L2段的传导速度与其在周围神经中的传导速度成正比。8.被认为是一个连续的或作为两个可分离的类型考虑主轴组II纤维的优点。9.纺锤体组II纤维可能的功能作用进行了讨论。
5. The rise time versus half-width relationship in spindle group II EPSPs showed considerable scatter. EPSPs generated by slow group II fibers had shorter EPSP latenties (measured from the terminal potential) and shorter rise times than did EPSPs generated by fast group II fibers. 6. Analysis of single traces of spindle group II motoneuron single-fiber EPSPs showed a limited and continuous range of EPSP amplitudes. These data are interpreted as further evidence for the monosynaptic nature of the transmission. 7. Conduction velocity of spindle group II afferent fibers in the dorsal columns through segment L2 is proportional to their conduction velocity in the peripheral nerve. 8. The merits of considering spindle group II fibers as comprising a continuum or as two separable types are considered. 9. Possible functional roles of spindle group II fibers are discussed.