Pages

SEARCH:

Passavant’s muscle is formed by:

 # Passavant’s muscle is formed by:
A. Palatoglossus
B. Palatopharyngeus
C. Styloglossus
D. Superior constrictor



The correct answer is B. Palatopharyngeus.

The upper fibres of palatopharyngeus form a sphincter internal to superior constrictor. These fibres constitute Passavant's muscle, which on contraction raises Passavant's ridge on the posterior wall of nasopharynx, but Passavant's ridge is present within Superior constrictor. 



No comments:

Post a Comment

Add Your Comments or Feedback Here