Accessory Nerve Diseases
Also known asAccessory 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.
MeSH classification
- C10.292.175
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Abducens Nerve Diseases
Diseases of the sixth cranial (abducens) nerve or its nucleus in the pons. The nerve may be injured along its course in the pons, intracrani…
Abducens Nerve Injury
Traumatic injury to the abducens, or sixth, cranial nerve. Injury to this nerve results in lateral rectus muscle weakness or paralysis. The …
Accessory Nerve Injuries
Traumatic injuries to the ACCESSORY NERVE. Damage to the nerve may produce weakness in head rotation and shoulder elevation.
Adie Syndrome
A syndrome characterized by a TONIC PUPIL that occurs in combination with decreased lower extremity reflexes. The affected pupil will respon…
Source: NIH MeSH 2026 (D020436) — National Library of Medicine, public domain. View official MeSH record ↗