单词	dorsal root
释义	dorsal root noun plural dorsal roots : the one of the two roots of a spinal nerve that passes dorsally to the spinal cord and consists of sensory fibers see also dorsal root ganglion compare ventral root Example Sentences Recent Examples on the Web Nociceptors—and other sensory neurons—live in discreetclusters, found just outside the spinal cord, called dorsal root ganglia (DRG). Stephani Sutherland, Scientific American, 22 Oct. 2020 Word History First Known Use 1826, in the meaning defined above Medical Definition dorsal root noun : the one of the two roots of a spinal nerve that passes posteriorly to the spinal cord separating the posterior and lateral funiculi and that consists of sensory fibers called also posterior root see also dorsal root ganglion compare ventral root
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