Intrinsic and Extrinsic Portions of Soft Palate Muscles in Velopharyngeal and Oropharyngeal Constriction: A 3D Modeling Study

  • Peter Anderson University of British Columbia
  • Sidney Fels University of British Columbia
  • Ian Stavness University of Saskatchewan
  • Bryan Gick University of British Columbia

Abstract

The soft palate is essential in speech, yet understanding of soft palate muscle function remains coarse. Traditional descriptions have focused almost exclusively on the extrinsic portions of soft palate muscles such as levator veli palatini (LVP) and palatoglossus (PG). However, the limited observations available in the literature suggest that the intrinsic portions are essential in primary soft palate functions, i.e., the reshaping of the palate needed to constrict the velopharyngeal port (VPP) and the oropharyngeal isthmus (OPI). We present simulations using a 3D biomechanical model of the soft palate with the goal of clarifying the distinct roles that the intrinsic and extrinsic portions of these muscles play in VPP and OPI control.

Author Biographies

Peter Anderson, University of British Columbia
Department of Electrical and Computer Engineering
Sidney Fels, University of British Columbia
Department of Electrical and Computer Engineering
Ian Stavness, University of Saskatchewan
Department of Computer Science
Bryan Gick, University of British Columbia
Department of Linguistics, Professor and Head
Published
2016-12-03
How to Cite
1.
Anderson P, Fels S, Stavness I, Gick B. Intrinsic and Extrinsic Portions of Soft Palate Muscles in Velopharyngeal and Oropharyngeal Constriction: A 3D Modeling Study. Canadian Acoustics [Internet]. 2016Dec.3 [cited 2019Dec.16];44(4):18-9. Available from: //jcaa.caa-aca.ca/index.php/jcaa/article/view/2869
Section
Proceedings of the Acoustics Week in Canada

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