Browsing by Author "Gunderson, M."
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Item Open Access The Anisotropic Elasticity of the Human Vocal Fold(SciTechnol, 2016-04-17) Goodyer, E. N.; Gunderson, M.; Tateya, C.; Tataya, T.; Dailey, S. M.Objective: To verify the anisotropic nature of the vocal folds by reproducing an experiment led by Rholfs that measured vocal fold elasticity in the transverse and longitudinal directions. To present a physiological explanation of the measured phenomena using immunochemical results. Methods: 6 cadaveric human excised larynges were hemi-sectioned in the mid-sagittal plane exposing the vocal folds, and orthogonal measurements of tension made at 3 equally spaced points. Immunohistochemistry carried out by Ichiro Tateya was used to visualise collagens and elastins in the deep layer of the lamina propria. Results: The LSR results indicate that the measured elasticity of the vocal folds are highly anisotropic. The immunohistochemistry results show that there is a strong alignment of collagens and elastins along the longitudinal axis of human vocal folds. Conclusion: The measured anisotropic behaviour is due to the alignment of collagens & elastins in the lamina propriaItem Metadata only The anisotropic nature of the visco-elastic properties of the human vocal fold(2010) Goodyer, E. N.; Dailey, S. H.; Gunderson, M.Item Metadata only Gradation of stiffness of the mucosa inferior to the vocal fold.(2010) Goodyer, E. N.; Dailey, S. H.; Gunderson, M.Item Metadata only Variation of stiffness of the mucosa inferior to the vocal fold(2008) Goodyer, E. N.; Dailey, S. H.; Gunderson, M.