Which nerve provides sensation above the vocal cords in the larynx?

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Sensation above the vocal cords in the larynx is carried by the internal branch of the superior laryngeal nerve, a branch of CN X. It travels with the superior laryngeal vessels through the thyrohyoid membrane to innervate the laryngeal inlet and the epiglottis, providing the afferent sensory input for that region. The external branch of the superior laryngeal nerve is motor to the cricothyroid muscle, not sensory. The recurrent laryngeal nerve supplies sensation below the vocal cords in the inferior larynx and subglottic area, and CN X as a whole gives the overall innervation, but the precise sensation above the cords comes from this internal branch.