The structure which is responsible for the voice is called the Larynx or voice box.
The Trachea may be defined as the airway that leads from the larynx (voice box) to the bronchi.
The larynx is a hollow structure that is connected to the trachea through which the pass of air takes place to the lungs. The larynx is the structure that also produces vocal sounds as well.
Therefore, the structure which is responsible for the voice is called the Larynx or voice box.
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