A branch of the vagus nerve which leaves the latter low down in its course, and hooking around the right subclavian artery on the right side and round the arch of the aorta on the left runs up again into the neck, where it enters the larynx and supplies branches to the muscles which control the vocal cords.
A nerve positioned in close proximity to the parathyroid glands, responsible for innervating the larynx or vocal cords.