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Laminar termination patterns of primary sensory axon terminals in the dorsal horn. A-δ and C fibers terminate superficially in the dorsal horn, with a branch
of the A-δ fiber also terminating in deeper layers. A-β fibers terminate in the deeper layers of the dorsal horn. However, the major A- β branch ascends in
the dorsal column. Projection neurons of the anterolateral system are shown, located in laminae I and V. Their axons decussate in the ventral spinal
commissure. Note that while laminae I-VI resemble flattened sheets, laminae VII-IX are more columnar-shaped. (Adapted from Rexed B. A
cytoarchitectonic atlas of the spinal cord in the cat. J Comp Neurol, 1954;100[2]:297-379.)
Source: Somatic Sensation: Spinal Systems for Pain, Temperature, and Itch, Neuroanatomy Text and Atlas, 4e
Citation: Martin JH. Neuroanatomy Text and Atlas, 4e; 2016 Available at: http://mhmedical.com/ Accessed: May 12, 2017
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