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在大鼠脊神经节细胞周围突向肋间神经和胃等内脏分支投射基础上，用电刺激大鼠左侧切断神经根的Ｔ_（１０）肋间神经，记录了同侧内脏大神经上的诱发电位。结果：记录到平均传导速度为１２．４０ｍ／ｓｅｃ的复合动作电位，此结果不受呼吸肌麻痹的影响，但麻醉肋间种经或内脏大神经后不再出现。提示：神经冲动可从脊神经节细胞周围突行走在肋间神经中的躯体分支，经分叉处传导到行走于内脏大神经中的内脏分支，这些分支以 Ａ－δ纤维为主。
On the basis of projection of intercostal nerve and gastric visceral branch around rat spinal ganglion cells, the T_ (10) intercostal nerve of nerve root was excised on the left side of rats and the induction of ipsilateral visceral nerve was recorded Potential. Results: The compound action potentials with an average conduction velocity of 12.40m / sec were recorded. The results were not affected by paralysis of respiratory muscles. However, no anesthesia intercostal or visceral nerve occurred. Hint: Nerve impulses may branch off from the somatic branches in the intercostal nerve around the dorsal root ganglion cells and conduct at the bifurcation to visceral branches walking in the visceral large nerves, which are predominantly A-delta fibers.