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dorsal root of spinal cord

^ http://purl.obolibrary.org/obo/UBERON_0002261

The dorsal roots contain afferent sensory axons. The dorsal roots of each side continue outwards, along the way forming a dorsal root ganglion (also called a spinal ganglion). [ NLXANAT:20090208 ]

Synonyms: radix posterior (nervus spinalis), dorsal spinal root, dorsal root, sensory root of spinal nerve, radix dorsalis, radix sensoria (nervus spinalis), posterior root of spinal nerve, dorsal spinal nerve root, dorsal root of spinal nerve

Term info

database cross reference
  • NLXANAT:20090208
  • BAMS:drt
  • TAO:0000652
  • BTO:0000360
  • FMA:5980
  • neuronames:1661
  • SCTID:362436008
  • Wikipedia:Posterior_root_of_spinal_nerve
  • NCIT:C32477
  • ZFA:0000652
  • UMLS:C0205955 (ncithesaurus:Dorsal_Root_of_the_Spinal_Nerve)
Subsets

uberon_slim, pheno_slim, vertebrate_core

UBPROP 0000001

In anatomy and neurology, the dorsal root (or posterior root) is the afferent sensory root of a spinal nerve. At the distal end of the dorsal root is the dorsal root ganglion, which contains the neuron cell bodies of the nerve fibres conveyed by the root. If the dorsal root of a spinal nerve were severed it would lead to numbness in certain areas of the body. The lateral division of the dorsal root contains lightly myelinated and unmyelinated axons of small diameter. These transmit pain and temperature sensation from the body. These fibers cross through the anterior white commissure to form the Anterior lateral system in the lateral funiculus. The medial division of the dorsal root contains myelinated axons of larger diameter. These transmit information of discriminative touch, pressure, vibration, and conscious proprioception originating from spinal levels C2 through S5. These fibers are pushed in towards the posterior medial sulcus to form the fasciculus gracilis and the fasciculus cuneatus. [WP,unvetted][Wikipedia:Posterior_root_of_spinal_nerve].

depicted by

https://upload.wikimedia.org/wikipedia/commons/d/d2/Spinal_nerve.svg

has related synonym

root dorsali nervi spinalis, radix posterior, dorsal roots, sensory spinal root, radix posterior nervi spinalis, root sensoria nervi spinalis

id

UBERON:0002261

prefLabel

Posterior root of spinal nerve