cranial root

cranial root

n.
Any of the roots of the accessory nerve that arise from the medulla.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References in periodicals archive ?
Finally, the origin of the accessory nerve is described as follows: cranial roots of accessory nerve emerge from the lateral side of the olives (Snell; Afifi & Bergman), in its two lower thirds (Rubin & Safdieh; Sarrazin et al.).