Dorsal root

Dorsal root

Infobox Anatomy
Name = PAGENAME
Latin = radix posterior
GraySubject = 208
GrayPage = 916


Caption = The formation of the spinal nerve from the dorsal and ventral roots


Caption2 =
System =
Precursor =
MeshName = Dorsal+Roots
MeshNumber = A08.800.800.720.725
DorlandsPre = r_12
DorlandsSuf = 12709389
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.


=Additional

ee also

* Ventral root

External links

* - "Superior view of a section through the spinal cord within the vertebral foramen."
* - "Spinal Root Nerve Fibers"


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Look at other dictionaries:

  • dorsal root — n 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 compare VENTRAL ROOT …   Medical dictionary

  • dorsal root — n. the more posterior of two roots that merge to form each spinal nerve: it contains the nerve fibers that transmit sensation * * * …   Universalium

  • dorsal root — n. the more posterior of two roots that merge to form each spinal nerve: it contains the nerve fibers that transmit sensation …   English World dictionary

  • Dorsal root ganglion — This is a dorsal root ganglion (DRG) from a chicken embryo (around stage of day 7) after incubation overnight in NGF growth medium stained with anti neurofilament antibody. Axons growing out of the ganglion are visible …   Wikipedia

  • dorsal root ganglion — n SPINAL GANGLION * * * g. sensorium nervi spinalis …   Medical dictionary

  • dorsal root — noun one of the two roots of a spinal nerve that passes dorsally to the spinal cord and that consists of sensory fibers • Syn: ↑dorsal horn • Hypernyms: ↑sensory nerve, ↑afferent nerve, ↑afferent • Part Holonyms: ↑spinal nerve, ↑ …   Useful english dictionary

  • dorsal root. — See under nerve root. [1930 35] * * * …   Universalium

  • dorsal root. — See under nerve root. [1930 35] …   Useful english dictionary

  • dorsal root — noun Date: 1922 the one of the two roots of a spinal nerve that passes dorsally to the spinal cord and consists of sensory fibers …   New Collegiate Dictionary

  • dorsal root of spinal nerve — radix posterior nervi spinalis …   Medical dictionary

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