middle pharyngeal constrictor muscle
The middle pharyngeal constrictor muscle is one of the pharyngeal constrictor muscles. Its primary action is constricting of the pharynx (in coordination with the superior pharyngeal constrictor and the inferior pharyngeal constrictor muscles) to deliver a bolus of food into the esophagus.
- origin: greater cornu of the hyoid bone, lesser cornu and stylohyoid ligament
- insertion: pharyngeal raphe
- artery: pharyngeal branch of the ascending pharyngeal artery, branch of the external carotid artery and the tonsillar branch of the facial artery
- nerve: pharyngeal plexus
- action: swallowing