Middle Pharyngeal Constrictor - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The middle pharyngeal constrictor is a muscle of the pharynx. It is the middle of the three pharyngeal constrictor muscles, and is located within the laryngopharynx. Attachments: Originates from the stylohyoid ligament and the hyoid bone. It inserts posteriorly onto 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 middle pharyngeal constrictor? The middle pharyngeal constrictor is a muscle located in the pharynx, specifically within the laryngopharynx. It is the second of three pharyngeal constrictor muscles and plays a crucial role in swallowing. What are the attachments of the middle pharyngeal constrictor? This muscle originates from the stylohyoid ligament and the hyoid bone, inserting posteriorly onto the pharyngeal raphe. These attachments allow it to effectively constrict the pharyngeal wall. What is the function of the middle pharyngeal constrictor? The primary function of the middle pharyngeal constrictor is to constrict the pharyngeal wall during swallowing, aiding in the downward propulsion of the food bolus. This action is essential for effective swallowing. Which nerve innervates the middle pharyngeal constrictor? The middle pharyngeal constrictor is innervated by the vagus nerve. This nerve is crucial for controlling the muscle's function during the swallowing process. What is the blood supply to the middle pharyngeal constrictor? The blood supply to the middle pharyngeal constrictor comes from the pharyngeal branch of the ascending pharyngeal artery, along with contributions from the tonsillar branch of the facial artery. This vascular supply is vital for the muscle's health and function. Rate This Article