猫食管颈段的神经支配——HRP法研究  

THE INNERVATION OF THE CERVICAL PORTION OF THE OESOPHAGUS IN THE CAT——HRP TRACING METHOD STUDY

作　　者：边冠鹤 李泽山[1] 王少梅[1] 周桂芬[1] 

机构地区：[1]锦州医学院解剖学教研室,锦州121004

出　　处：《解剖学报》1993年第1期57-62,T008,共7页Acta Anatomica Sinica

摘　　要：HRP注入猫食管颈段左侧壁后:1.于两侧面后核、脊上核、背内侧核和注射侧的迷走神经背核、孤束核、疑核、中间带、疑后核和副神经脊髓核出现HRP逆行标记细胞,以面后核和迷走神经背核内的标记细胞数最多,迷走神经背核内的标记细胞主要分布于闩上、下部。2.两侧脊髓T_(1～3)节段出现被标记的长轴突型交感节前神经元(注射侧占88.96%),以T_2节段最多(66.45%),主要位于中间带外侧核(95.02%),余者位于外侧索、中介核、前角背外侧核。此结果说明,食管颈段壁内有交感和副交感两种节前神经元分布。3.交感节后神经元位于双侧星状神经节(61.99%)和颈前、颈中、T_(2～5)交感干神经节。4.注射侧的结状神经节和C_(1～8),T_(1～5)脊神经节(C_6、T_2节最多)出现标记细胞,两者分别占72%、28%(2.6∶1),表明食管颈段的感觉以迷走神经传入为主。By means of retrograde HRP tracing method, the innervation of the left half of cervical portion of oesophagus in cats was investigated in this study. The HRP-labelled cells were found bilaterally in the retrofacial nuclei, nuclei supraspinalis, nuclei dorsomedialis and ipsilaterally in the dorsal motor nucleus of the vagus nerve, solitary nucleus, nucleus ambiguus, intermediate zone, nucleus retroambiguus and spinal nucleus of the accessory nerve. The distribution of the labelled cells in the dorsal motor nucleus of vagus nerve showed certain localization characteristics. They were more numerous at the levels above and below the obex. The labelled sympathetic preganglionic neurons with long axons appeared in T_1-T_3 spinal segments at the injected side (88.96%) and mainly in T_2(66.45%). The majority of labelled cells were located in the intermediolateral nucleus(95.02%); and the rest were in the lateral funiculus, intercalated nucleus and dorsolateral nucleus of the ventral horn, there were two of preganglionic neurons (i.e. parasympathetic and sympathetic) innervating the oesophagus. The postganglionic neurons were mainly located in the stellate ganglion(61.99%), anterior and middle cervical ganglia, and T_2-T_5 ganglia of the sympathetic trunk, bilaterally. There were some labelled cells in the nodose ganglion and the C_1 to T_5 spinal ganglia(mainly in C_6 and T_2). The ratio between the labelled cells in the nodose ganglion and the spinal ganglia is 2.6:1, which means that the afferent fibres ran predominantly via vagus nerve.

关 键 词：神经支配 食管 HRP法 

分 类 号：R322.43[医药卫生—人体解剖和组织胚胎学]