The portion of the cavity of the larynx above the vestibular fold is called the laryngeal vestibule; it is wide and triangular in shape, its base or anterior wall presenting, however, about its center the backward projection of the tubercle of the epiglottis.

It is the inlet to another cavity in the lateral wall of larynx, the laryngeal ventricle.

The vestibular fold is formed by the vestibular ligament extending from the lateral walls of the epiglottis to the arytenoid cartilage covered with mucous membrane.

The vocal fold is the upper free margin of the conus elasticus which is covered by mucous membrane.

This article incorporates text in the public domain from page 1078 of the 20th edition of Gray's Anatomy (1918)