Original communication| Volume 48, ISSUE 5, P846-853, November 1960

The buccopharyngeal propulsive mechanism in human deglutition

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      • 1.
        1. A group of subjects was studied by cinefluorographic analysis to gain further information concerning the dynamics of the buccopharyngeal phases of swallowing.
      • 2.
        2. Five of the subjects were normal, and 8 were individuals with alterations in function based on neoplasm, neurologic disorder, or operation.
      • 3.
        3. It is seen that there is a significant propulsive force generated in the mouth and/or pharynx which coincides with the squirt mechanism described by earlier authors.
      • 4.
        4. The force results from a complex interaction of tongue and adjacent structures.
      • 5.
        5. Several phases to the kinetic interplay can be recognized.
      • 6.
        6. The manner in which various pathologic states can interfere with these phases is demonstrated.
      • 7.
        7. The buccopharyngeal squirt mechanism can serve to propel ingesta past obstructing lesions in the hypopharynx.
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