Light A R
Department of Physiology, University of North Carolina, Chapel Hill.
Appl Neurophysiol. 1988;51(2-5):78-88. doi: 10.1159/000099951.
The dorsal horn of the spinal cord receives afferent input from innocuous primary afferent neurons via collaterals from the dorsal columns. This input is integrated and relayed primarily by neurons in laminae III-VI. Dorsal horn neurons which encode innocuous inputs project to the medulla and the cervical spinal cord via the dorsal columns and the dorsolateral funiculus. Nociceptive primary afferent neurons enter the spinal dorsal horn via collaterals from Lissauer's tract. Nociceptive input is integrated and relayed by neurons in laminae I, II and V which project to the reticular formation and thalamus via the anterolateral tract.
脊髓背角通过来自背柱的侧支接收来自无害初级传入神经元的传入输入。这种输入主要由Ⅲ-Ⅵ层的神经元进行整合和中继。编码无害输入的背角神经元通过背柱和背外侧索投射到延髓和颈脊髓。伤害性初级传入神经元通过Lissauer束的侧支进入脊髓背角。伤害性输入由Ⅰ、Ⅱ和Ⅴ层的神经元进行整合和中继，这些神经元通过前外侧索投射到网状结构和丘脑。
