近年来,生理学技术与其它新技术广泛结合,对背角的电生理学分层、背角神经元的类型、微细结构、神经化学以及微回路有了新的了解。背索突触后神经元、背角双投射神经元、突触前树突、局部轴突侧支、递质共存以及非突触传递等在脊髓背角的发现,在某种意义上,对传统观念提出了挑战,并有可能开辟新的研究领域。 In recent years, the combination of physiology and other new technologies has led to a new understanding of the electrophysiology stratification of the dorsal horn, types of dorsal horn neurons, fine structures, neurochemistry, and microcirculation. Dorsal horn post-synaptic neurons, dorsal horn double projection neurons, presynaptic dendrites, local axon collaterals, coexistence of neurotransmitters and non-synaptic transmission found in the dorsal horn of the spinal cord, in a sense, Traditional concepts pose challenges and may open up new areas of research.