Berger W K
Biophys Struct Mech. 1982;9(2):109-15. doi: 10.1007/BF00539109.
Electrical coupling between axon segments has been studied in the medium giant axon, which had been partially isolated from the ventral nerve cord of the earthworm. Evidence has been obtained that in addition to the coupling structures in the septum there are diffusion- and current-pathways through the pseudo-myelin which seem to be more permeable to fluorescein than the channels in the septum. These findings offer an explanation for the discrepancy of the experimentally determined specific resistance of the septum and the expected values based on nexus density and channel size in the septum.
轴突节段之间的电耦合已在中等大小的巨轴突中进行了研究，该巨轴突是从蚯蚓腹神经索中部分分离出来的。有证据表明，除了隔膜中的耦合结构外，还存在通过假髓鞘的扩散和电流通路，这些通路似乎比隔膜中的通道对荧光素更具渗透性。这些发现解释了实验测定的隔膜比电阻与基于隔膜中连接密度和通道大小的预期值之间的差异。
