Stylopharyngeus - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The stylopharyngeus is a muscle of the pharynx. It is unique amongst the pharyngeal muscles in that it is innervated by the glossopharyngeal nerve and not the vagus nerve. Attachments: Originates from the styloid process of the temporal bone and inserts onto the pharyngeal wall Action: Elevates the pharynx during swallowing Innervation: Glossopharyngeal nerve (CN IX). Blood supply: Pharyngeal branch of the ascending pharyngeal artery (branch of external carotid artery). By TeachMeSeries Ltd (2026) Fig 2Lateral view of the deep structures of the pharynx. Visible are the circular muscles of the pharynx, and the stylopharyngeus. 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 function of the stylopharyngeus muscle? The stylopharyngeus muscle elevates the pharynx during swallowing. This action is crucial for facilitating the passage of food through the pharynx. Where does the stylopharyngeus muscle originate and insert? The stylopharyngeus originates from the styloid process of the temporal bone and inserts onto the pharyngeal wall. This specific attachment allows it to effectively elevate the pharynx. Which nerve innervates the stylopharyngeus muscle? The stylopharyngeus is innervated by the glossopharyngeal nerve (CN IX). This is distinctive, as most pharyngeal muscles are innervated by the vagus nerve. What is the blood supply to the stylopharyngeus muscle? The blood supply to the stylopharyngeus comes from the pharyngeal branch of the ascending pharyngeal artery, which is a branch of the external carotid artery. This vascular supply is essential for the muscle's function. How does the stylopharyngeus muscle contribute to swallowing? The stylopharyngeus muscle plays a vital role in swallowing by elevating the pharynx. This elevation aids in the movement of food from the mouth into the oesophagus. Rate This Article