The larynx is an organ in the neck associated with swallowing and sound (voice) production. The larynx is located at the point where incoming air (inspirational air) is directed to the trachea leading to the lungs, and where incoming food is routed into the esophagus for passage to the stomach.

The location and design of the larynx allows it to protect the airway from inadvertently routed food. The larynx is also commonly called the "voice box," in recognition of its crucial role in the formation of speech. The design of the larynx allows it to produce the sounds that comprise speech. As well, the design and location of the larynx play a role in the control of air movement during breathing.

The larynx is a tubular chamber about two inches high. The walls of the larynx are made of a tough material...