The Accessory nerve reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Accessory nerve

The accessory nerve is the eleventh of twelve cranial nerves. It leaves the cranium through the formen magnum, and innervates the sternocleidomastoid muscle (sternomastoid) and trapezius muscle on the ipsilateral side.

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