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Ventral root
The formation of the spinal nerve from the dorsal and ventral roots
Latin	radix anterior nervi spinalis
Gray's	subject #208 916
System
MeSH	A08.800.800.720.725
A spinal nerve with its anterior and posterior roots.

In anatomy and neurology, the ventral root (or anterior root) is the efferent motor root of a spinal nerve. At its distal end, the ventral root joins with the dorsal root to form a mixed spinal nerve.

[edit] Additional images

Cervical vertebra	Medulla spinalis	The mechanism of the reflex arc	A spinal nerve with its anterior and posterior roots.
The motor tract.	Diagrammatic transverse section of the medulla spinalis and its membranes.	A portion of the spinal cord, showing its right lateral surface. The dura is opened and arranged to show the nerve roots.	Scheme showing structure of a typical spinal nerve.

[edit] External links

• SUNY Figs 02:04-12
• Atlas of anatomy at UMich n3a6p1 - "Autonomic Connections of the Spinal Cord"
• Anatomy Atlases - Microscopic Anatomy, plate 06.114 - "Spinal Root Nerve Fibers"
• Diagram (look for #2)

Spinal cord

epidural space, dura mater, subdural space, arachnoid mater, subarachnoid space, pia mater, denticulate ligaments, conus medullaris, cauda equina, filum terminale, cervical enlargement, lumbar enlargement, anterior median fissure, dorsal root, dorsal root ganglion, dorsal ramus, ventral root, ventral ramus, sympathetic trunk, gray ramus communicans, white ramus communicans grey matter: central canal, substantia gelatinosa of Rolando, reticular formation, substantia gelatinosa centralis, interneuron, anterior horn, lateral horn, posterior horn (column of Clarke, dorsal spinocerebellar tract) white matter: anterior funiculus: descending (anterior corticospinal tract, vestibulospinal fasciculus, tectospinal tract), ascending (anterior spinothalamic tract, anterior proper fasciculus) lateral funiculus: descending (lateral corticospinal tract, rubrospinal tract, olivospinal tract), ascending dorsal spinocerebellar tract, ventral spinocerebellar tract, spinothalamic tract, lateral spinothalamic tract, anterior spinothalamic tract, spinotectal tract, posterolateral tract, lateral proper fasciculus, medial longitudinal fasciculus posterior funiculus: fasciculus gracilis, fasciculus cuneatus, posterior proper fasciculus

This page uses content from the English-language version of Wikipedia. The original article was at Ventral root. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License.