Anatomy

Origin

It arises from the anterior and lateral surfaces of the styloid process, near its apex, and from the stylomandibular ligament. 

Insertion

Passing downward and forward between the internal and external carotid arteries, it divides upon the side of the tongue near its dorsal surface, blending with the fibers of the Longitudinalis inferior in front of the Hyoglossus; the other, oblique, overlaps the Hyoglossus and decussates with its fibers.    

Nerve

Hypoglossal nerve (CN XII).

Actions

The Styloglossi draw the tongue upward and backward.