Palatoglossus - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The palatoglossus is an extrinsic muscle of the tongue. It is also associated with the soft palate – and is therefore innervated by the vagus nerve. Attachments: Arises from the palatine aponeurosis and inserts broadly along the tongue. Function: Elevation of the posterior tongue Innervation: Vagus nerve. Blood supply: Lingual artery with contributions from the tonsillar artery. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Frequent questions What is the palatoglossus muscle? The palatoglossus is an extrinsic muscle of the tongue that plays a role in elevating the posterior part of the tongue. It is also connected to the soft palate, indicating its functional significance in swallowing. What are the attachments of the palatoglossus? The palatoglossus originates from the palatine aponeurosis and inserts broadly along the tongue. This positioning allows it to effectively contribute to tongue movement during various activities. What is the primary function of the palatoglossus? The primary function of the palatoglossus is to elevate the posterior portion of the tongue. This action is crucial for processes such as swallowing and speech. Which nerve innervates the palatoglossus muscle? The palatoglossus muscle is innervated by the vagus nerve. This nerve supplies the muscle with the necessary signals for its contraction and function. What is the blood supply for the palatoglossus? The palatoglossus receives its blood supply primarily from the lingual artery, with additional contributions from the tonsillar artery. This vascularisation supports the muscle's metabolic needs during its activities. Rate This Article