| ansae nervorum spinalium | Loops of the spinal nerves, connecting ventral primary rami of the spinal nerves. Synonym: ansae nervorum spinalium. (05 Mar 2000) |
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| radix inferior ansae cervicalis | Fibres 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: descendens cervicalis, radix inferior ansae cervicalis. (05 Mar 2000) |
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| radix superior ansae cervicalis | The fibres 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: descendens hypoglossi, descending branch of hypoglossal nerve, radix superior ansae cervicalis. (05 Mar 2000) |
| ramus thyrohyoideus ansae cervicalis | <anatomy> The thyrohyoid branch, contains fibres of the first and second cervical nerves that have accompanied the hypoglossal nerve to the suprahyoid region, then branch from it to reach the thyrohyoid muscle. Synonym: ramus thyrohyoideus ansae cervicalis. (05 Mar 2000) |