The Compartmental Tongue.
Purpose: Tongue anatomy and function is widely described as consisting of four extrinsic muscles to control position and four intrinsic muscles to control shape. This myoarchitecture cannot, however, explain independent tongue body and blade movement nor accurately model the subtlety of observed lin...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 67; pp. 3887 - 3914 |
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| Formato: | Artículo |
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American Speech-Language-Hearing Association
Oct2024 Supplement
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=180509424&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 180509424 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Oct2024 Supplement vid: 67 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 180509424 10.1044/2024_JSLHR-23-00125 ppf: 3887 ppct: 27 formats: fmt: @attributes: type: P size: 3.5MB tig: atl: The Compartmental Tongue. aug: au: Wrench, Alan A. affil: Queen Margaret University, Edinburgh, United Kingdom Articulate Instruments Ltd, Edinburgh, United Kingdom su: Tongue physiology Pearson correlation (Statistics) Biological models Hypoglossal nerve Biomechanics Skeletal muscle Neurophysiology Kinematics Motor neurons Descriptive statistics Tongue Electromyography Conceptual structures Body movement Stains & staining (Microscopy) Muscles sug: subj: Tongue physiology Pearson correlation (Statistics) Biological models Hypoglossal nerve Biomechanics Skeletal muscle Neurophysiology Kinematics Motor neurons Descriptive statistics Tongue Electromyography Conceptual structures Body movement Stains & staining (Microscopy) Muscles ab: Purpose: Tongue anatomy and function is widely described as consisting of four extrinsic muscles to control position and four intrinsic muscles to control shape. This myoarchitecture cannot, however, explain independent tongue body and blade movement nor accurately model the subtlety of observed lingual shapes. This study presents the case for a finer neuromuscular structure and functional description. Method: Using the theoretical framework of the partitioning hypothesis, evidence for neuromuscular compartments of each of the lingual muscles was discerned by reviewing studies of lingual anatomy, hypoglossal nerve staining, hypoglossal motoneuron axon tracing, muscle fiber type distribution, and electromyography. Muscle fibers of the visible human female were manually traced to produce a three-dimensional atlas of muscular compartments. A kinematic study was undertaken to determine the degree of independent movement between different parts of the tongue. A simple biomechanical model was used to demonstrate how synergistic groups of compartments can control sectors of the tongue. Results: Results indicated as many as 10 compartments of genioglossus, two each of superior and inferior longitudinal, eight of styloglossus, three of hyoglossus, and six each of transversus and verticalis, while palatoglossus may not have a significant role in tongue function. Kinematic analysis indicated independent control of five sectors of the tongue body, and biomechanical modeling demonstrated how this control may be achieved. Conclusion: Evidence is presented for a lingual structure based on neuromuscular compartments, which work together to position and shape sectors of the tongue and independently control tongue body and blade. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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