家兔肌皮神经躯体神经元的定位研究

目的 :用HRP逆行追踪技术显示家兔肌皮神经躯体神经元的定位。方法 :将 6只家兔分别切断左侧肌皮肌神经 ,并在近侧断端涂抹HRP ,对躯体运动和躯体感觉神经元的节段性分布进行研究。结果 :HRP标记细胞见于脊髓C7节段前角外侧部 ,同侧C7脊神经节内也出现大量的HRP标记细胞。结论 :对比感觉和运动神经元的定位 ,可见两者间呈对应性关系的节段性分布。

The Location of Somatic Neurons of the Musculocutaneous Nerve in the Rabbit

Objective:To display the location of somatic neurons of the musculocutaneous nerve in the rabbit with retrograde axonal tracing method of horseradish peroxides(HRP). Methods: The experiment was performed on 6 abult rabbits. That was smeared HRP on the proximal cut end of the left musculocution nerves.The location of somatic motoneurons and somatic sonsoryneurons was studied in the distribution. Results: The labered cells in the spinal cord were found in the ipsilateral ventrally gray hornib C 7 segments of the latoral part.A number of labered cells appeared in ipsilateral spinal ganglia C 7 in all the 6 animals. Conclusion:From comparison and analysis of the sensory and motoneurons location,the same segmental distribution of both is discovered.