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A STUDY OF SYMPATHETIC INNERVATION IN CERVICAL PORTION OF OESOPHAGUS IN CATS BY USING HRP

Bian Guanhe Wang Shaomei Li Zheshan (Department of Anatomy,Jinzhou Medical College  
HRP was injected into the left wall of cervical portion of oesopha- gus in 5 cats.Was tried to study the sympathetic innervation of oesop- hagus in the neck.The results were as follows. 1.Labeled sympathetic preganglionic neuron with long axis are di- stributed directly in the oesophagus wall.They were located in T_1-T_3 spinal segments bilaterally.They were mainly in segment T_2 (amounti- ng to 66.45% of the total labeled cells)with the preponderance of the ipsilateral side.The labeled cells were found mainly in the intermedio- lateral nucleus(about 95.02%).There were also some labeled cells in the lateral funieulus,the intercalated nucleus and the dorsolateral nuc- leus.The labeled cells were variable in shape.They were mainly small and medium in size (about 90.4%) 2.The sympathetic postganglionic neurous innervating the cervical portion of the oesophagus was mainly in the stellate ganglions (about 61.99%)and the rest were in both sides of the superior,middle cervical ganglia and T_(2-5) ganglia of sympathetic trunk.The labeled cells were mainly small-sized.
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