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Medical Term:

superior root of ansa cervicalis


the fibers that arise from the first and second cervical nerves, accompany the hypoglossal nerve, then branch off to meet the inferior root in the ansa cervicalis; they innervate the infrahyoid muscles.

Synonym(s): radix superior ansae cervicalisTA, superior limb of ansa cervicalis, descendens hypoglossi, descending branch of hypoglossal nerve

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.