Ventral ramus of spinal nerve

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Nerve: Ventral ramus
Spinal nerve.svg
The formation of the spinal nerve from the dorsal and ventral roots. (Ventral ramus labeled at lower left.)
Latin ramus anterior nervi spinalis
Gray's subject #210 925
/ Elsevier

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


The ventral ramus (anterior ramus, anterior branch, anterior divisions of the spinal nerves) supply the antero-lateral parts of the trunk, and the limbs; they are for the most part larger than the posterior divisions.

In the thoracic region they run independently of one another, but in the cervical, lumbar, and sacral regions they unite near their origins to form plexuses.

The Ventral rami, including the sinuvertebral nerve branches, supply structures anterior to the facet joint, including the vertebral bodies, the discs and their ligaments and joints other spinal nerves to form the lumbo-sacral plexus.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.