inferior root of ansa cervicalis

in·fe·ri·or root of ansa cervicalis

[TA] fibers from the second and third cervical nerves that pass forward and downward along the internal jugular vein; they contribute to the ansa cervicalis and innervate the infrahyoid muscles. Synonym(s): radix inferior ansae cervicalis [TA], inferior limb of ansa cervicalis ☆ , descendens cervicalis