The paired bundles of nerve fibers entering and leaving the spinal cord at each segment. The dorsal and ventral nerve roots join to form the mixed segmental spinal nerves. The dorsal roots are generally afferent, formed by the central projections of the spinal (dorsal root) ganglia sensory cells, and the ventral roots efferent, comprising the axons of spinal motor and autonomic preganglionic neurons. There are, however, some exceptions to this afferent/efferent rule.


Images

Relation of <b>Spinal Nerve Roots</b>

Relation of Spinal Nerve Roots
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Relation Of <b>Spinal Nerve Roots</b>

Relation Of Spinal Nerve Roots
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Relation Of <b>Spinal Nerve Roots</b>

Relation Of Spinal Nerve Roots
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Lumbosacral <b>Nerve Roots</b>

Lumbosacral Nerve Roots
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From this point on the <b>spinal</b>

From this point on the spinal
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<b>Lumbar Nerve Roots</b>

Lumbar Nerve Roots
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Selective <b>Nerve Root</b> Block

Selective Nerve Root Block
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<b>Spinal nerves</b> contain both

Spinal nerves contain both
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Symptoms and diagnosis

Symptoms:

    



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Last update: September 2014