Nerve, accessory: See: Accessory nerve.
Plan of upper portions of glossopharyngeal, vagus, and accessory nerves. Image source: Gray's Anatomy (1918) / Wikipedia
In anatomy, the accessory nerve is a nerve. that controls specific muscle. s of the shoulder and neck. As part of it was formerly believed to originate in the brain
nerve (nerv) a cordlike structure comprising a collection of nerve fibers that convey impulses between a part of the central nervous system and some other body region.
noun Anatomy . either one of the eleventh pair of cranial nerves, consisting of motor fibers from the spinal cord that innervate the pharyngeal, trapezius, and ...
Accessory nerve: The eleventh cranial nerve, which emerges from the skull and receives an additional (accessory) root from the upper part of the spinal cord.