Context:Innervation - branches of the vagus nerve.
Superior Laryngeal Nerve - sensation of the glottis and supraglottis. Motor fibers to the cricothyroid muscle, which tenses the vocal folds. This nerve leaves the vagus high in the neck. 
Recurrent Laryngeal Nerve - sensation of the subglottis, and motor fibers to intrinsic muscles of the larynx. This nerve branches from the vagus in the mediastinum, then turns back up into the neck. On the right, it travels inferior to the subclavian artery and on the left, the aorta.