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January 1989

The Spinal Accessory Nerve in Childhood Hemiplegia

Author Affiliations
From the Department of Neurology, State University of New York Health Science Center at Brooklyn.
Arch Neurol. 1989;46(1):60-61. doi:10.1001/archneur.1989.00520370062020

• Fifteen of 17 children with hemiplegia were found to have weakness of the trapezius muscle but a normally functioning sternocleidomastoid muscle. Very few other cranial nerve-mediated deficits were found. The difference between the two muscles, both supplied by the spinal accessory nerve, may depend on a phylogenetic basis, with the former behaving like an appendicular muscle and the latter like an axial muscle.