nerve root


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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).

nerve root

the part of a nerve adjacent to the center to which it is connected.
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 ?
The study was a follow-up of a trial they published in the Journal of Bone and Joint Surgery in 2000, in which 55 candidates for surgery were randomly assigned instead to a selective nerve root injection of bupivacaine alone, or bupivacaine and betamethasone.
The nerve root canal, also called the lateral recess, is adjacent to the pedicles and facet joints in the region of the foramina.
He performs the more difficult cervical injection techniques of the spine, including selective nerve root blocks, transtoraminal injections, epidural and cervical epidural catheters, facet joint and median branch blocks and radiofrequency thermocoagulation lesioning (RFTC).
A common intraoperative finding in this group of patients is an enlarged and rich epidural venous network, sometimes with compression of the exiting nerve root caused by the enlarged epidural veins.
Intraoperatively, the mass was noted to be intimately associated with a cervical nerve root (figure 2,A).
If a bulging spinal disk that's pressing on a nerve root causes pain, inserting a needle and delivering heat into the middle of the disk can shrink the disk through a procedure called nucleoplasty.
He recently had some irritation in the nerve root,'' team physical therapist Pat Screnar said, ``and Dr.
Therefore, the procedure is well suited for a young, active person with disc herniation--a piece of disc that has worked its way out of the disc and is sitting against the spinal cord or nerve root and causing significant dysfunction.
A stinger is a minor nerve root or brachial plexus stretch injury, rather than a spinal cord injury.
It is commonly found in the neck and can cause considerable pain, particularly if a nerve root is trapped by arthritic vertebrae.
Also, stimulating a peripheral nerve rather than a nerve root eliminates unpleasant stimulation of nerves in the buttocks and lower extremities, he said.
For example, a degenerative condition affecting the facet joints may eventually cause secondary changes, such as a herniated (bulging) disk that places pressure on the spinal cord or nerve root (see fig.