Which of the following forms the Passavant&;s ridge?
Some of the upper fibres of the palatopharyngeus pass circularly deep to the mucous membrane of the pharynx,and form a sphincter internal to the superior constrictor.These fibres constitute passavant's muscle which on contraction raises a ridge called the Passavant's Ridge. REF.BDC VOL.3,FIFTH EDITION
Palatoglossus
Salpingopharyngeus
Palatopharyngeus
Hyoglossus
Head and neck