What Is the Larynx?
The larynx, or voice box, is divided into three areas:
- Glottis — the vocal cords
- Supraglottis — the area above the vocal cords, including the epiglottis, which closes off when you swallow
- Subglottis — the area below the vocal cords
The larynx sits above the trachea at the entrance to the lungs. The larynx makes sound for speaking and protects the airway during swallowing. The vocal cords change the sound and pitch of the voice. They close tightly when you swallow and open up to let you breathe.
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