spinal root
physiology
Learn about this topic in these articles:
neurological disease
- In nervous system disease: Spinal nerve roots
…signs of damage to the spinal roots are the same as for peripheral-nerve damage except that the area of involvement is restricted to the area supplied by the spinal roots rather than the nerves. Also, generalized symmetrical sensory loss is not seen in spinal root damage.
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structure of the accessory nerve
- In human nervous system: Accessory nerve (CN XI or 11)
…levels C1–C4 (known as the spinal root). The cranial root originates from the nucleus ambiguus and exits the medulla below the vagus nerve. Its fibers join the vagus and distribute to some muscles of the pharynx and larynx via pharyngeal and recurrent laryngeal branches of that nerve. For this reason,…
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