Superior Pharyngeal Constrictor - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The superior pharyngeal constrictor is a muscle of the pharynx. It is the uppermost of the pharyngeal constrictors and is located within the oropharynx. Attachments: Originates from the pterygomandibular ligament, alveolar process of the mandible, medial pterygoid plate and pterygoid hamulus of the sphenoid bone. It inserts posteriorly onto the pharyngeal tubercle of the occipital bone and the pharyngeal raphe. Action: Constricts the wall of the pharynx during swallowing to propel the food bolus downwards. Innervation: Vagus nerve Blood supply: Pharyngeal branch of ascending pharyngeal artery with contributions from the tonsillar branch of facial artery. By TeachMeSeries Ltd (2026) Fig 1Lateral 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 superior pharyngeal constrictor? The superior pharyngeal constrictor is a muscle located in the oropharynx that plays a crucial role in swallowing. It is the uppermost of the three pharyngeal constrictor muscles. What are the attachments of the superior pharyngeal constrictor? This muscle originates from the pterygomandibular ligament, the alveolar process of the mandible, the medial pterygoid plate, and the pterygoid hamulus of the sphenoid bone. It inserts onto the pharyngeal tubercle of the occipital bone and the pharyngeal raphe. What is the function of the superior pharyngeal constrictor? The primary function of the superior pharyngeal constrictor is to constrict the pharyngeal wall during swallowing, facilitating the downward movement of the food bolus. This action is essential for effective swallowing. Which nerve innervates the superior pharyngeal constrictor? The superior pharyngeal constrictor is innervated by the vagus nerve. This nerve is crucial for the motor control of the pharyngeal muscles. What is the blood supply to the superior pharyngeal constrictor? The blood supply to the superior pharyngeal constrictor comes from the pharyngeal branch of the ascending pharyngeal artery, with additional contributions from the tonsillar branch of the facial artery. This vascular supply is important for the muscle's function and health. Rate This Article