Martinez-Gomez M, Pacheco P, Dubrovsky B
Exp Neurol. 1987 Apr;96(1):11-8. doi: 10.1016/0014-4886(87)90164-6.
In the terminal cone of the cat spinal cord, the coccygeal segments give rise to the ventrolateral and dorsomedial nerves of the tail. Extracellular recording was made from the ventral root of the coccygeal segments after stimulation of each or both ventrolateral and dorsomedial nerves. Stimulation of either nerve caused a polysynaptic response of 5- or 10-ms latency. A monosynaptic response was not seen unless posttetanic potentiation was carried out, or both nerves were stimulated simultaneously. It is suggested that the ventrolateral and dorsomedial nerves are linked by a common pathway, allowing spatial summation to take place, thus facilitating the elicitation of a monosynaptic response. The neural organization underlying the muscle movements of the cat's tail is discussed.
在猫脊髓的终锥中，尾段发出尾部的腹外侧神经和背内侧神经。在分别刺激腹外侧神经和背内侧神经中的每一条或同时刺激这两条神经后，从尾段的腹根进行细胞外记录。刺激任何一条神经都会引起潜伏期为5毫秒或10毫秒的多突触反应。除非进行强直后增强，或者同时刺激两条神经，否则不会出现单突触反应。这表明腹外侧神经和背内侧神经通过一条共同通路相连，从而实现空间总和，进而促进单突触反应的引发。文中还讨论了猫尾巴肌肉运动的神经组织基础。
