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    A Biomechanical Model of Sagittal Tongue Bending

    Source: Journal of Biomechanical Engineering:;2002:;volume( 124 ):;issue: 005::page 547
    Author:
    Vitaly J. Napadow
    ,
    Roger D. Kamm
    ,
    Richard J. Gilbert
    DOI: 10.1115/1.1503794
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The human tongue is a structurally complex and extremely flexible organ. In order to better understand the mechanical basis for lingual deformations, we modeled a primitive movement of the tongue, sagittal tongue bending. We hypothesized that sagittal bending is a synergistic deformation derived from co-contraction of the longitudinalis and transversus muscles. Our model of tongue bending was based on classical bimetal strip theory, in which curvature is produced when one muscle layer contracts more so than another. Contraction was modulated via mismatched thermal expansion coefficients and temperature change (to simulate muscular contraction). Our results demonstrated that synergistic contraction produced curvature and strain results which were in better correspondence to empirical results derived from tagging MRI than were the results of contraction of the longitudinalis muscle alone. This fundamental reliance of tongue bending on the synergistic contraction of its intrinsic fibers supports the muscular hydrostat theory of tongue function.
    keyword(s): Thermal expansion , Deformation , Magnetic resonance imaging , Muscle , Strips , Biomechanics AND Temperature ,
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      A Biomechanical Model of Sagittal Tongue Bending

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    http://yetl.yabesh.ir/yetl1/handle/yetl/126362
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    contributor authorVitaly J. Napadow
    contributor authorRoger D. Kamm
    contributor authorRichard J. Gilbert
    date accessioned2017-05-09T00:06:48Z
    date available2017-05-09T00:06:48Z
    date copyrightOctober, 2002
    date issued2002
    identifier issn0148-0731
    identifier otherJBENDY-26269#547_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/126362
    description abstractThe human tongue is a structurally complex and extremely flexible organ. In order to better understand the mechanical basis for lingual deformations, we modeled a primitive movement of the tongue, sagittal tongue bending. We hypothesized that sagittal bending is a synergistic deformation derived from co-contraction of the longitudinalis and transversus muscles. Our model of tongue bending was based on classical bimetal strip theory, in which curvature is produced when one muscle layer contracts more so than another. Contraction was modulated via mismatched thermal expansion coefficients and temperature change (to simulate muscular contraction). Our results demonstrated that synergistic contraction produced curvature and strain results which were in better correspondence to empirical results derived from tagging MRI than were the results of contraction of the longitudinalis muscle alone. This fundamental reliance of tongue bending on the synergistic contraction of its intrinsic fibers supports the muscular hydrostat theory of tongue function.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleA Biomechanical Model of Sagittal Tongue Bending
    typeJournal Paper
    journal volume124
    journal issue5
    journal titleJournal of Biomechanical Engineering
    identifier doi10.1115/1.1503794
    journal fristpage547
    journal lastpage556
    identifier eissn1528-8951
    keywordsThermal expansion
    keywordsDeformation
    keywordsMagnetic resonance imaging
    keywordsMuscle
    keywordsStrips
    keywordsBiomechanics AND Temperature
    treeJournal of Biomechanical Engineering:;2002:;volume( 124 ):;issue: 005
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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