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Disease Accessory Nerve Diseases

Name Accessory Nerve Diseases
Synonyms Accessory Nerve Disease | Cranial Nerve Eleven Diseases | Cranial Nerve Eleven Disorders | Cranial Nerve XI Diseases | Eleventh Cranial Nerve Disease | Spinal Accessory Nerve Diseases
Definition Diseases of the eleventh cranial (spinal accessory) nerve. This nerve originates from motor neurons in the lower medulla (accessory portion of nerve) and upper spinal cord (spinal portion of nerve). The two components of the nerve join and exit the skull via the jugular foramen, innervating the sternocleidomastoid and trapezius muscles, which become weak or paralyzed if the nerve is injured. The nerve is commonly involved in MOTOR NEURON DISEASE, and may be injured by trauma to the posterior triangle of the neck.
Categories Nervous system disease
MeSH® ID D020436
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Top ↑ Ancestors

DiseasesNervous System Diseases Has associated chemicals Has associated genes Has associated exposure references Cranial Nerve Diseases Has associated chemicals Has associated genes Has associated exposure references Accessory Nerve Diseases

Top ↑ Descendants

Accessory Nerve Diseases
  Accessory Nerve Injuries