The superior pharyngeal constrictor muscle is innervated by the pharyngeal branch of the vagus nerve via the pharyngeal plexus. The interval between the upper border of the muscle and the base of the skull is closed by the pharyngeal aponeurosis, and is known as the sinus of Morgagni.Īs soon as the bolus of food is received in the pharynx, the elevator muscles relax, the pharynx descends, and the constrictors contract upon the bolus, and convey it downward into the esophagus. The superior fibers arch beneath the levator veli palatini muscle and the Eustachian tube.

The fibers curve backward to be inserted into the median raphe, being also prolonged by means of an aponeurosis to the pharyngeal spine on the basilar part of the occipital bone. and by a few fibers from the side of the tongue ( Glossopharyngeal part) origin from posterior border of the medial pterygoid plate medial to the superior pharyngeal constrictor where its origin ends at the level of pterygoid hamulus. The middle pharyngeal constrictor muscle is one of the pharyngeal constrictor muscles. Pterygoid hamulus, pterygomandibular raphe, posterior end of mylohyoid line of mandible, the tongue. Key facts about the superior pharyngeal constrictor muscle. from the alveolar process of the mandible above the posterior end of the mylohyoid line ( Myolopharyngeal part) Citation, DOI, disclosures and article data. This article will discuss the anatomy and function of the superior pharyngeal constrictor muscle. Action: contracts during swallowing to constrict the middle pharynx.

from the pterygomandibular raphe ( Buccopharyngeal part) Insertion: The middle pharyngeal constrictor inserts into the pharyngeal raphe. lesser horn (cornu), articulates with the greater horn at its junction with the body the.

the lower third of the posterior margin of the medial pterygoid plate and its hamulus ( Pterygopharyngeal part) origin of middle pharyngeal constrictor m. The four parts of this muscle arise from:

Middle pharyngeal constrictor origin