The nervus vagus.
D003389:Cranial Nerve Diseases / Q000175:diagnosis*; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis; D004576:Electromyography; D006801:Humans; D008722:Methods; D010243:Paralysis / Q000175:diagnosis / Q000628:therapy; D012009:Recurrent Laryngeal Nerve; D014630:Vagus Nerve / Q000033:anatomy & histology* / Q000502:physiology / Q000601:surgery; D014826:Vocal Cord Paralysis / Q000175:diagnosis / Q000628:therapy