Assertion: accessory nerve's root | /r/HasProperty | a group of fibers
Facets:
Source sentences:
text: The so-called cranial root of the accessory nerve has been described as a group of fibers that arise from the caudal portion of the nucleus ambiguus (the more cranial portions of which also supply branchial motor innervation to cranial nerves [CNs] IX and X), and emerge from the medulla as several rootlets in the postolivary sulcus (Fig. 11.3).