The larynx (plural larynges), colloquially known as the voicebox,'s an organ in the neck of mammals involved in protection of the trachea and sound production. The larynx houses the vocal folds, and's situated just below where the tract of the pharynx splits into the trachea and the esophagus. Function Sound's generated in the larynx, and that's where pitch and volume are manipulated. The strength of expiration from the lungs also contributes to loudness. Fine manipulation of the larynx's use… (More on Larynx)