dorsal root

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dorsal root

n.
Either of the two roots of a spinal nerve, consisting of sensory fibers and arising from the posterior section of the spinal cord.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.dorsal root - one of the two roots of a spinal nerve that passes dorsally to the spinal cord and that consists of sensory fibers
afferent, afferent nerve, sensory nerve - a nerve that passes impulses from receptors toward or to the central nervous system
nervus spinalis, spinal nerve - any of the 31 pairs of nerves emerging from each side of the spinal cord (each attached to the cord by two roots: ventral and dorsal)
References in periodicals archive ?
The grade of distribution score (D-score) of the lesion was classified into four scores (0=no lesion, 1=lesion limited to the posterior root, 2=lesion observed both in the posterior root and posterior white matter, 3=lesion beyond the posterior root and posterior white matter).
3] is double rooted with the posterior root more robust.

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