Velopharyngeal Isthmus Closure: The Passavant's Ridge

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drrahmatorlummc       Jun 7, 2012      Surgery Specialty: ENT hide
This video shows the horizontal mucosal folds (Passavant's ridge) on posterior pharyngeal wall upon initiation of velopharyngea closure. It occurs during the act of swallowing followed by contractions of the...
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