Electrophysiologic Activity of the Vestibular Fold

Ricz, Hilton Marcos Alves; Bastos, Patricia; Aguiar-Ricz, Lilian Neto; Marques, Wilson; Mamede, Rui Celso Martins

doi:10.1001/archoto.2010.74

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…Recent morphological studies of VF have confirmed the existence of various distinct muscle bundles 8–10 . Further, the activity of the thyroarytenoid muscle bundle during phonation has been confirmed with electromyography 11 .…”

Section: Introductionmentioning

confidence: 67%

“…[8][9][10] Further, the activity of the thyroarytenoid muscle bundle during phonation has been confirmed with electromyography. 11 In an extensive morphological study of the ventricular fold musculature of 11 larynges of human fetuses and 6 adult human larynges, Motta 12 found 3 groups of compact fascia in the superior-lateral portion of the false vocal folds and identified their origins and directions. According to Motta, 12 these muscular fibers originate from the anterior-lateral border of the arytenoid cartilage and terminate in the submucosa of the ventricular fold.…”

Section: Introductionmentioning

confidence: 99%

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Muscular Anatomy of the Human Ventricular Folds

Moon¹,

Alipour²

2013

Ann Otol Rhinol Laryngol

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Objective The purpose of this study was to better understand the muscular anatomy of the ventricular folds (VF) to help improve biomechanical modeling of phonation and to better understand the role of these muscles during phonatory and non-phonatory tasks. Method Four human larynges were decalcified and sectioned coronally from the posterior to anterior using a CryoJane tape transfer system, and stained using Massons trichrome. The total and relative area of muscles observed in each section were calculated and used for characterizing muscle distribution within the ventricular folds. Results The ventricular folds of the larynges contained anteriorly coursing thyroarytenoid and ventricularis muscle fibers lying in the lower half of the VF posteriorly, with some ventricularis muscle evident in the upper and lateral portion of the fold more anteriorly. Very little muscle tissue was observed in the medial half of the fold, and the anterior half of the VF was largely devoid of any muscle tissue. All four VF’s contained muscle bundles coursing superiorly and medially through the upper half of the fold toward the lateral margin of the epiglottis. Conclusions While variability in expression was evident, the well-defined thyroarytenoid muscle was readily apparent lateral to the arytenoid cartilage in all specimens.

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Section: Introductionmentioning

confidence: 67%