Elastic models of vocal fold tissues
Copyright policy )Elastic models of vocal fold tissues
Elastic properties of canine vocal fold tissue (muscle and mucosa) were obtained through a series of experiments conducted in vitro and were modeled mathematically. The elastic properties play a significant role in quantitative analysis of vocal fold vibrations and theory of pitch control. Samples of vocalis muscle and mucosa were dissected and prepared from dog larynges a few minutes premortem and kept in a Krebs solution at a temperature of 37±1 °C and a pH of 7.4±0.05. Samples of muscle tissue and mucosa were stretched and released in a slow, sinusoidal fashion. Force and displacement of the samples were measured with a dual-servo system (ergometer). After digitization, stress–strain data for samples of muscle tissue and cover tissue were averaged. The stress–strain data were then fitted numerically by polynomial and exponential models.
- University of Iowa United States
Models, Anatomic, Dogs, Animals, Vocal Cords, Models, Theoretical, Elasticity, Muscle Contraction
Models, Anatomic, Dogs, Animals, Vocal Cords, Models, Theoretical, Elasticity, Muscle Contraction
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