Isthmus of fauces; Oropharyngeal isthmus
Isthmus faucium
Definition
the isthmus of the fauces is the orifice between the oral cavity and the oral part of the pharynx. It is bounded laterally by the two palatoglossal arches, dorsally by the soft palate and ventrally by the tongue.
References
Constantinescu GM, Schaller O. Illustrated veterinary anatomical nomenclature, 3rd Edition, Enke Verlag, Stuttgart, 2012.