The styloglossus muscle is one of the extrinsic tongue muscles.
- origin: the apex of the styloid process adjacent to the origin of the stylomandibular ligament, and deep fibers of the ligament itself
- insertion: merges with the hyoglossus and inferior longitudinal muscle of the tongue
- innervation: hypoglossal nerve
- blood supply: ascending pharyngeal artery; ascending palatine and tonsillar arteries
- action: tongue elevation and retraction