does the larynx in the respiratory tract have nervous tissue?

Yes, the larynx in the respiratory tract does have nervous tissue. The larynx is innervated by the vagus nerve, specifically the superior and recurrent laryngeal nerves. These nerves provide sensory innervation to the larynx and also control the muscles that allow for speech and the protection of the airway during swallowing. The superior laryngeal nerve innervates the cricothyroid muscle, which is responsible for tension and lengthening of the vocal cords. The recurrent laryngeal nerve innervates all other intrinsic muscles of the larynx, controlling opening, closing, and tension of the vocal cords.