Experimental degeneration of the extrinsic nerves of the small intestine in relation to the structure of the myenteric plexus
Experimental degeneration of the extrinsic nerves of the small intestine in relation to the structure of the myenteric plexus
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小肠外在神经与肌间神经丛结构相关的实验性变性
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S. Johnson
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作者：
S. Johnson
交感神经系统的传出通路是由节前和节后神经元组成的，这一观点已变得相当普遍。换句话说，传出交感神经通路被认为是双神经元的。然而，肠道的神经机制似乎被许多作者认为是这种结构计划的例外。在这条神经链中存在第三个神经元的可能性已经被考虑过，但是大多数的分歧似乎集中在肠壁中独立神经机制的不确定性及其结构的可能性质的问题上，无论是原始的合胞体神经网络还是仅仅是神经纤维丛，例如通常在交感神经节中发现的神经纤维丛。作者希望在本文中提出一些观察的结果，而不进一步讨论关于这个问题的已经被广泛评论的文献，这些观察似乎表明肌间神经丛的结构和结构关系与所有其他交感神经节和神经丛的结构和结构关系处于同一平面上。
The belief has become quite general that the efferent pathways of the sympathetic nervous system are made up of preganglionic and postganglionic neurons. In other words, the efferent sympathetic pathway is regarded as bineuronic. The nervous mechanism of the gut, however, appears to be considered by many writers as an exception to this plan of structure. The possibility of a third neuron in the chain has been considered, but most of the disagreement appears to center about the question of the existeiice of an iiidependent nervous mechanism in the gut wall and the probable nature of its Structure, whether a primitive syncytial nervenetwork or merely a plexus of nerve fibers such as usually found in sympathetic ganglia. The writer wishes to present in this paper, without further discussion of the already muchreviewed literature on this subject, the results of some observations which appear to indicate that the structure and structural relations of the myenteric plexus is on the same plan as that of all other sympathetic ganglia and plexuses.