Vestibular fold
Plica vestibularis
Definition
The vestibular fold is a short, wide mucosal plica located cranially to the vocal folds, supported by the vestibular ligament and the cuneiform process of the arytenoid cartilage. It contains a few elastic fibres and extends from the enlarged ventral edge of the cuneiform process to the cranial dorsal surface of the thyroid cartilage.
The vestibular fold is described in dogs and horses and is absent in ruminants and pigs. In cats, where the cuneiform process is absent, the vestibular fold is a mucosal fold.
References
Constantinescu GM, Schaller O. Illustrated veterinary anatomical nomenclature, 3rd Edition, Enke Verlag, Stuttgart, 2012.
Evans HE, de Lahunta A. Miller’s anatomy of the dog, 4th edition, Elsevier Saunders, St Louis, 2012.
