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Larynx
  In our body's neck, the Larynx (Voice Box) is a complex organ with a primary evolutionary function to protect the lungs from aspiration of food and water, with phonation and voice production as secondary adaptations, composed of nine laryngeal cartilages, connective tissue barriers, muscles, and soft tissues that act in a coordinated fashion to allow sphincteric control of the airway.

Larynx, commonly called the voice box
  In our body, the Larynx (Voice Box) extends from the fourth to the sixth vertebral levels.
The larynx is divided anatomically into three sections: supraglottic (supralarynx), glottic (larynx), and subglottic (sublarynx) regions.
  The Larynx is formed by nine cartilages that are connected to each other by muscles and ligaments. *