Laryngeal ventricle

The laryngeal ventricle is described in carnivores and horses as a small mucosal sac situated between the vestibular fold and the vocal fold medially, and the lamina of the thyroid cartilage laterally. Its edge is attached to these two folds where its lumen opens into the laryngeal cavity at the junction of the rima vestibuli and the rima glottidis.

In the pig, the laryngeal ventricle is found in both parts of the vocal folds.

The laryngeal ventricle is not homologous with the human laryngeal saccule, which is an appendage of the laryngeal ventricle.

The laryngeal ventricle can contribute to the upper airway obstruction syndrome in brachycephalic dogs when the mucosa is everted and protrudes into the laryngeal cavity: the diameter of the laryngeal cavity is thus reduced and disrupts the dog's air circulation.