nerve root

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Related to Nerve roots: Spinal nerves, dermatomes

nerve root

one of two bundles of nerve fibers (posterior and anterior roots) emerging from the spinal cord that join to form a single segmental (mixed) spinal nerve; some cranial nerves are similarly formed by the union of two roots, in particular the trigeminal nerve (CN V).
A herb that contains glycosides, resins, tannins, and volatile oil. It is said to have antispasmodic and sedative effects
Toxicity Contact dermatitis, giddiness, hallucinations, headaches

nerve root

the points at which a spinal nerve arises from the spinal cord. Each has two roots: a DORSAL ROOT and a VENTRAL ROOT.

nerve root

(nĕrv rūt)
One of two bundles of nerve fibers emerging from the spinal cord that join to form a single segmental (mixed) spinal nerve.
References in periodicals archive ?
Therefore, it seems likely that persistent hyperexcitability in the pain pathways after disc herniation is associated with a local inflammatory process including activation of macrophages close to the nerve roots. Moreover, previous data show that IL-1[beta] [24, 25], Csf1 [26-28], and CX3CL1 [22, 29, 30] can induce M1 microglia activation.
* May exhibit stenosis with nerve root and/or thecal sac compression
The effect of nerve root injections on the need for operative treatment of lumbar radicular pain.
Some of them include herpes zoster, infection, lumbar nerve root tumor, spinal instability, excessive hypertrophy of the facet joint, ankylosing spondylitis, sacroiliitis, sciatic neuritis, piriformis syndrome, intrapelvic mass (hypertrophic ossification), intraspinal ganglion cyst, endometriosis, adenomyosis, coxarthrosis, et cetera.
Higher electrical stimulus intensities are required to activate chronically compressed nerve roots. Implications for intraoperative electromyographic pedicle screw testing.
All of these conditions narrow the spinal canal and foramina and press on the spinal cord or nerve roots, most commonly in the lumbar spine.
The idea of double crash of a nerve was put forward by Upton and McComas, who demonstrated that up to 70% of patients with the syndromes of carpal tunnel and ulnar nerve compression had also signs of damage to the cervical nerve roots [2].
Traction therapy for the cervical spine involves a tractive force applied to the neck via a mechanical system which improves conduction disturbance primarily by increasing the amount of blood flow from the nerve roots to the spinal parenchyma.
The S1 nerve roots were clearly seen entering the tumor and were sacrificed bilaterally.
In lumbar punctures where cerebrospinal fluid (CSF) is removed, clinicians tend to select lower lumbar levels where fewer nerve roots are found and paraesthesiae are less likely to result.
The minimally invasive interspinous spacer is inserted via a single, half-inch skin incision and once in place acts as a support column to open the passageways that contain the spinal cord and nerve roots. The Superion ISS has been implanted in more than 2,000 patients around the world.