痛与镇痛都属于神经机制 ,是伤害性刺激信息在中枢内传递和调控的结果。脊髓后角浅层是接受躯体性伤害性信息传递的初级门户和对伤害性信息进行处理的重要部位 ,是探索躯体痛和镇痛机制的首当其冲的脑区。现已公认 ,脊髓后角 (在脑干与它相当的是三叉神经脊束核尾侧亚核 )浅层 Pain and pain are neural mechanisms that are the result of the transmission and regulation of nociceptive information in the central nervous system. The superficial layer of the spinal cord is the primary portal for the transmission of somatic nociceptive information and an important part of the processing of nociceptive information and is the foremost brain area to explore body pain and analgesic mechanisms. It is now accepted that the dorsal horn of the spinal cord (sublateral to the caudate nucleus of the trigeminal nerve in the brainstem)