Ventral roots

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Ventral roots
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.

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.

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)