Yokoyama S, Ozaki T, Kajitsuka T
Am J Physiol. 1977 Feb;232(2):E100-8. doi: 10.1152/ajpendo.1977.232.2.E100.
Excitation conduction in Auerbach's plexus of the rabbit small intestine was investigated by analyzing its evoked potentials as the response to a single electrical stimulus given to this plexus. When the conduction distance was 1 mm, two spike waves were recorded. Conduction velocities of nerve impulses were 0.3-0.5 m/s, and chronaxie was 0.06-0.11 ms. When the distance between stimulating and recording electrodes was further increased, evoked potential waves became multiple and small, until beyond 15 mm in the longitudinal direction and beyond 3 mm in the circular direction they could no longer be recorded. Evoked potentials recorded at a distance greater than 2 mm were reduced in their amplitude, and some potential waves were abolished after repeated stimulation with high frequency above 50/s, and also after hexamethonium application and lack of oxygen. It was concluded that in Auerbach's plexus nerve impulses spread through multiple pathways, conducting mainly on the longitudinal axis of the small intestine, and that some impulses make synaptaic transmission at ganglia.
通过分析兔小肠奥尔巴赫神经丛对给予该神经丛的单个电刺激的诱发电位，研究了其兴奋传导。当传导距离为1毫米时，记录到两个尖峰波。神经冲动的传导速度为0.3 - 0.5米/秒，时值为0.06 - 0.11毫秒。当刺激电极与记录电极之间的距离进一步增加时，诱发电位波变得多样且变小，直到在纵向超过15毫米和在环向超过3毫米时，它们不再能够被记录。在大于2毫米的距离处记录的诱发电位其幅度减小，并且在用高于50次/秒的高频重复刺激后，以及在应用六甲铵和缺氧后，一些电位波被消除。得出的结论是，在奥尔巴赫神经丛中，神经冲动通过多条途径传播，主要在小肠的纵轴上传导，并且一些冲动在神经节处进行突触传递。
