Huber J, Grottel K, Celichowski J
Department of Pathophysiology of Locomotor Organs, University School of Medical Sciences, Poznań, Poland.
Neurosci Res. 1994 Nov;21(1):51-7. doi: 10.1016/0168-0102(94)90067-1.
Neurons of origin of the crossed spinocerebellar and/or spinothalamic tracts giving off axon collaterals at supraspinal levels were antidromically identified and labeled with horseradish peroxidase in lower sacral spinal cord segments of cats. Their cell bodies were located mainly in the medial part of lamina VII and rarely in the ventromedial aspect of lamina VI. In the S2 segment 77 neurons with axons in the opposite dorsolateral funiculus were recorded; 36 of them were invaded from only the thoracic level, 21 from both the thoracic level and the restiform body, 3 from both the thoracic level and the thalamus, and 17 from both the thoracic level, the restiform body and the thalamus on the contralateral side. These termination areas suggest that the S2 neurons under study transmit peripheral signals of proprioceptive, exteroceptive and nociceptive sensations.
在猫的骶髓下段，对发出轴突侧支至脊髓上水平的交叉脊髓小脑束和/或脊髓丘脑束的起始神经元进行了逆向鉴定，并用辣根过氧化物酶进行标记。它们的细胞体主要位于VII层内侧部分，很少位于VI层腹内侧。在S2节段记录到77个轴突位于对侧背外侧索的神经元；其中36个仅从胸段被逆向激活，21个从胸段和绳状体被逆向激活，3个从胸段和丘脑被逆向激活，17个从胸段、绳状体和对侧丘脑被逆向激活。这些终末区域表明，所研究的S2神经元传递本体感觉、外感受和伤害性感受的外周信号。
