Structure/Morphology
There are two arches near the junction of the oral cavity and the oropharynx. These are the anterior palatoglossal and the posterior palatopharyngeal arches.
The palatoglossal arch extends from the soft palate to the lateral aspect of the tongue and contains the palatoglossus muscle.
The palatopharyngeal arch sits more medially than the palatoglossal fold. It extends from the soft palate to the pharynx and contains the palatopharyngeus muscle.
Related parts of the anatomy
Key Features/Anatomical Relations
The tonsillar bed of the palatine tonsils sits between the palatoglossal and the palatopharyngeal arches.