Histo-anatomical Structure of the Human Laryngeal Ventricle

Kotby, M. Nasser; Kirchner, John A.; Kahane, Joel C.; Basiouny, S. E.; El-Samaa, M.

doi:10.3109/00016489109137409

Cited by 24 publications

(34 citation statements)

References 3 publications

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“…The position of these fibers roughly corresponds to fibers identified as thryoepiglotticus by Kotby et al 8 who reported their “midlarynx” existence (i.e. at midpoint anteriorly).…”

Section: Discussionsupporting

confidence: 74%

“…As the posterior border of the laryngeal ventricle was approached, anterior coursing fibers of the ventricularis muscle, as observed by Kotby et al 8 appeared separate from the thyroartenoid and placed higher in the VF. These fiber bundles were typically irregular in cross-section and somewhat scattered within the VF tissue but lateral to the main mass of glandular tissue.…”

Section: Discussionmentioning

confidence: 61%

“…Due to the lack of a complete understanding of the complex VF histological structure, its muscular and physiological functions have been the subject of many recent studies. 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: 94%

“…Kotby et al 8 studied the microstructure of the human laryngeal ventricle and VF by making coronal sections from 17 normal adult human larynges (8 male and 9 female) to describe the epithelial, glandular and muscular structures of the VF. They reported that the ventricle was comprised of mucosa and muscle, where the mucosa included epithelium, and a lamina propria with a loose layer of elastic and collagenous fibers.…”

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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“…The position of these fibers roughly corresponds to fibers identified as thryoepiglotticus by Kotby et al 8 who reported their “midlarynx” existence (i.e. at midpoint anteriorly).…”

Section: Discussionsupporting

confidence: 74%

Section: Discussionmentioning

confidence: 61%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Muscular Anatomy of the Human Ventricular Folds

Moon¹,

Alipour²

2013

Ann Otol Rhinol Laryngol

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“…Others have noted that the superior portion of the thyroarytenoid muscle has much greater bulk in the human. 23 This study demonstrated that intermittent neuromuscular stimulation of the thyroarytenoid muscle could provide dynamic glottic adduction for airway protection. The Peterson electrode was well suited for implantation into the thyroarytenoid muscle; the 3-mm stimulating tip could be easily placed in the middle portion of the muscle without producing significant muscular destruction.…”

Section: Discussionmentioning

confidence: 99%

Chronic intermittent stimulation of the thyroarytenoid muscle maintains dynamic control of glottal adduction

Ludlow¹,

Bielamowicz²,

Rosenberg³

et al. 2000

Muscle Nerve

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Amount and spatial arrangement of muscle fibers in the human laryngeal Musculus ventricularis

2023

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Textbooks and atlases of human macroscopic and microscopic anatomy of the larynx generally provide, if at all, only sparse information on the laryngeal Musculus ventricularis. However, several studies indicate that this muscle takes over the function of vestibular (ventricular) fold phonation after denervation of the Musculus vocalis. In the present study, 29 laryngeal specimens were coronally dissected at different levels, i.e. the anterior (L1), middle (L2), and posterior third of the vestibular fold (L3), and they underwent histological analysis. In all specimens the vestibular folds of both hemi‐larynxes contained striated muscle bundles in variable amounts, representing a ventricularis muscle. These muscle bundles obviously originated from the lateral (external) and thyroepiglottic part of the thyroarytenoid muscle and the aryepiglottic part of the oblique arytenoid muscle, as has been described by other authors. The areas of vestibular folds and their amounts of ventricularis muscle bundles were measured using image analysis software (imageJ) by manual tracing. The mean area of the vestibular folds of both hemi‐larynxes was 27.9 mm2 (SD [standard deviation] ± 9.17), and the area occupied by fibers of the ventricularis muscle was 1.5 mm2 (SD ± 1.78). Statistical analysis comparing the areas of both hemi‐larynxes and levels resulted in no significant differences, except for the levels 2 and 3. In level 2, significantly more muscle fibers (2.0 mm2; SD ± 2.21) were detectable within the vestibular fold than in level 3 (0.9 mm2; SD ± 1.43). Level 1 also contained more muscle fibers (1.1 mm2; SD ± 1.06) than level 3, however, without significance. In conclusion, the laryngeal ventricularis muscle is present in the majority of reported cases. Since the muscle is of clinical relevance, it should be included in anatomical textbooks by default.

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Histo-anatomical Structure of the Human Laryngeal Ventricle

Cited by 24 publications

References 3 publications

Muscular Anatomy of the Human Ventricular Folds

Muscular Anatomy of the Human Ventricular Folds

Chronic intermittent stimulation of the thyroarytenoid muscle maintains dynamic control of glottal adduction

Amount and spatial arrangement of muscle fibers in the human laryngeal Musculus ventricularis

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