Duda P, Pavlásek J
Physiol Bohemoslov. 1977(2):149-57.
In experiments on the cats the relationship was studied of individual columns of the spinal cord to irradiation of the early (propriospinal) and late component of viscerosomatic reflex responses. It was found that the intraspinal systems involved in the descending spread of activity forming the early and the late component of the splanchnic response along the spinal cord were localized mainly in the anterolateral quadrants of the white matter. The descending systems are bilateral and cross at the segmental level. The pathways participating in the spread of the two-component somatomotor discharge evoked by intercostal nerve stimulation are localized in the same area. A bilateral lesion of the dorsal part of the lateral columns of segments C1 to C3 strongly inhibited the late component of the reflex responses. Inhibition was reversible, showing that systems modifying the development and course of the late component are localized in this region. Lesion-induced changes in viscerosomatic reflex responses were parallel with changes in somatomotor discharges. This finding supports the opinion that the pathways involved are localized close together and that their action is modified by similar factors.
在对猫进行的实验中，研究了脊髓的各个柱与内脏躯体反射反应的早期（脊髓固有）和晚期成分的照射之间的关系。发现参与形成内脏反应沿脊髓的早期和晚期成分的活动下行传播的脊髓内系统主要位于白质的前外侧象限。下行系统是双侧的，并在节段水平交叉。参与肋间神经刺激诱发的双成分躯体运动放电传播的通路位于同一区域。C1至C3节段外侧柱背侧部分的双侧损伤强烈抑制了反射反应的晚期成分。抑制是可逆的，表明调节晚期成分发展和进程的系统位于该区域。损伤引起的内脏躯体反射反应变化与躯体运动放电变化平行。这一发现支持了这样一种观点，即所涉及的通路彼此靠近定位，并且它们的作用受到相似因素的调节。
