glossopharyngeus

su·pe·ri·or pharyngeal con·stric·tor (mus·cle)

[TA]
uppermost component of the outer "circular" muscle layer of the pharynx; origin, medial pterygoid plate (pterygopharyngeal part [TA]), pterygomandibular raphe (buccopharyngeal part [TA]), mylohyoid line of mandible (mylopharyngeal part [TA]), and the mucous membrane of the floor of the mouth and the side of the tongue (glossopharyngeal part [TA]); insertion, pharyngeal raphe in the posterior wall of the pharynx; action, narrows pharynx; helps to seal nasopharynx off from oropharynx and contracts in a peristaltic manner during swallowing; nerve supply, pharyngeal plexus.

glossopharyngeus

(1) Glossopharyngeal nerve; nervus glossopharyngeus [NA]. 
(2) Glossopharyngeal part of superior constrictor muscle of pharynx; pars glossopharyngea musculi constrictoris pharyngis superioris [NA].