Passavant ridge is formed by: (A) Superior constrictor and palatopharyngeus, (B) Inferior constrictor and palatopharyngeus, (C) Superior constrictor and palatoglossus, (D) Inferior constrictor and palatoglossus
Answer is A. Passavant ridge Near the superior margin of the pharynx, a few fibers of superior constrictor blend with a band of muscle fibers belonging to the palatopharyngeus muscle These fused fibers form a band or ring around the posterior wall and sidewalls of the nasopharyngeal isthmus When the soft palate is elevated this muscle band appears as a ridge is known as passavant ridge. Ref: PL Dhingra, Diseases of Ear, Nose & Throat, 7th edition, pg no. 271