Quantitative studies of the vagus nerve in the cat - I. The ratio of sensory to motor fibers
Quantitative studies of the vagus nerve in the cat - I. The ratio of sensory to motor fibers
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DOI：
10.1002/cne.900670104
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发表时间：
1937-06-01
影响因子：
2.5
通讯作者：
DuBois, F
中科院分区：
文献类型：
--
作者：
Foley, JO;DuBois, F
用银染法和渗酸法制备了2只正常猫的左右迷走神经部分和9只去除右神经传出纤维的猫的相应部分，并进行了数值分析。在较好的材料中，正常迷走神经中有33,554到39.166个轴突，而只有传入纤维的迷走神经中有26,164到31,387个轴突。这些计数是在颈静脉神经节的远端进行的。计算表明，结状神经节内有22,134至29,411个细胞。手术侧感觉纤维占非手术侧感觉纤维总数的65%~80%。相反，运动纤维的比例从20%到35%不等。假设诺斯。的神经纤维通常是相等的，已被发现只是大致正确。在完整的迷走神经中，有髓纤维占23%~33%，其中感觉纤维占10%~20%，运动纤维占48%~71%。猫的迷走神经主要是感觉神经，主要是无髓鞘的。
Portions of the right and left vagus nerves from 2 normal cats and corresponding portions from 9 other cats in which the efferent fibers of the right nerve had been eliminated were prepared by Ag and osmic acid methods and subjected to numerical analysis. In the better material 33,554 to 39.166 axons were enumerated in normal vagus nerves and 26,164 to 31,387 in those that contained only afferent fibers. These counts were made just distal to the jugular ganglion. Computations showed there were 22,134 to 29,411 cells in the nodose ganglia. Sensory fibers on the operated side constituted from 65% to 80% of the total fibers on the unoperated side. Conversely, motor fibers ranged from 20% to 35%. The assumption that the nos. of fibers in the nerves of the 2 sides are normally equal has been found to be only approximately correct. 23% to 33% of the fibers in the intact vagus nerves were found to be myelinated, viz., 10% to 20% of the sensory fibers and 48% to 71% of the motor fibers. The vagus nerve of the cat is predominantly sensory and predominantly unmyelinated.