a nerve fiber bundle that emerges from either side of the spinal cord and joins with a complementary bundle to form each spinal nerve in the series of spinal nerves: the root at the rear of the spinal cord (dorsal root or sensory root) conveys sensations to the central nervous system, and the root at the front (ventral root or motor root) conveys impulses to the muscles.
- Nerve rootlet
nerve rootlet nerve root·let (rōōt’lĭt, rut’-) n. See root filament.
[nurv] /nɜrv/ noun 1. one or more bundles of fibers forming part of a system that conveys impulses of sensation, motion, etc., between the brain or spinal cord and other parts of the body. 2. a sinew or tendon: to strain every nerve. 3. firmness or courage under trying circumstances: an assignment requiring nerve. 4. […]
- Nerve tissue
nerve tissue n. A highly differentiated tissue composed of nerve cells, nerve fibers, dendrites, and neuroglia.
- Nerve to stapedius muscle
nerve to stapedius muscle n. A branch of the facial nerve arising in the facial canal and innervating the stapedius muscle.