title: Motor organization of the spinal accessory nerve in the monkey.
abstract: The segmental and topographical organization of motoneurons of the spinal accessory nerve was studied in monkeys with horseradish peroxidase (HRP). The sternomastoid muscle is innervated primarily from the C1-C2 level of the cord and the motor column is medial in the ventral horn. The trapezius muscle, however, is innervated primarily from the C2-C3-C4 levels of the cord and the motor column lies in the ventrolateral region of the ventral horn. The data are discussed with regard to treatment of torticollis.
mesh_terms: D000818:Animals; D001370:Axonal Transport; D005260:Female; D006735:Horseradish Peroxidase; D008251:Macaca / Q000033:anatomy & histology*; D008252:Macaca fascicularis / Q000033:anatomy & histology*; D008297:Male; D009046:Motor Neurons / Q000502:physiology*; D009132:Muscles / Q000294:innervation; D013127:Spinal Nerves / Q000033:anatomy & histology* / Q000502:physiology
chemical_list: D006735:Horseradish Peroxidase