Jin S X, Li J S, Qin B Z
Department of Physiology, Second Military Medical University, Shanghai 200433.
Sheng Li Xue Bao. 1998 Oct;50(5):570-4.
The effects of somatic and visceral nociceptive stimulation on neurons of dorsal commissural nucleus in sacral spinal cord were studied in pentobarbitone anesthetized cats using extracellular recording techniques. The results indicated that all neurons deriving input from A delta fibers of the pelvic nerve were either nociceptive specific or wide dynamic range neurons, and could be activated by mechanical or intense electrical stimulation of the respective receptive fields including perianal region. The above results suggest that the A delta afferents innervation of the pelvic organ is important in nociception.
采用细胞外记录技术，在戊巴比妥麻醉的猫身上研究了躯体和内脏伤害性刺激对骶脊髓背侧连合核神经元的影响。结果表明，所有从盆神经Aδ纤维获得输入的神经元均为伤害性特异性或广动力范围神经元，并且可以通过对包括肛周区域在内的各自感受野进行机械或强电刺激来激活。上述结果表明，盆器官的Aδ传入神经支配在伤害感受中很重要。
