Passavant ridge is formed by:
Correct Answer: Palatopharyngeus and superior constrictor
Description: Some fibres of the palatopharyngeus muscle (arising from palatine aponeurosis) sweep horizontally backwards and join the upper fibres of the superior constrictor muscle to form a U-shaped muscle-loop in the posterior pharyngeal wall underneath the mucosa, which is pulled forward during swallowing to form the Passavant ridge.
Category:
Anatomy
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