Larynx

Larynx

The larynx is the principal organ of voice. It is situated in the front of the neck, and forms the prominence sometimes called “Adam's apple”; it also forms a part of the anterior boundary of the pharynx. At the upper part it has the form of a triangular box, with one angle directly in front. It is composed of nine cartilages moved by muscles, and lined with mucous membrane. Six of its cartilages are in pairs; three are single. The three single cartilages are the thyroid, cricoid, and epiglottis; the three pairs are the arytenoid, cuneiform, and cornicula laryngis. The larynx is sometimes called a music-box; from it proceeds the sound called voice.

SIDE VIEW OF THE LARYNX AND TWO RINGS OF THE TRACHEA.