Ueber das Foramen in den Laminae der Cartilago thyreoidea

Gruber, Wenzel

doi:10.1007/bf01878317

Cited by 6 publications

(11 citation statements)

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“…In all our adult larynges studied, the FT was located in the posterosuperior portion of the thyroid lamina, either anteriorly or posteriorly to the superior thyroid tubercle. In contrast with Grüber's data, 4 we have not observed any cases of FT in the inferior portion of the thyroid lamina. Like Afifi, 8 we have observed an increment of the superior thyroid tubercle in those larynges in which a FT was present.…”

Section: Discussioncontrasting

confidence: 99%

“…In our study, we found in adult larynges three cases of double FT, and in all the upper FT was much smaller than the lower. In an additional case, one fetal larynx showed a double FT. Like other authors, we have not observed the presence of three or more FT in the same thyroid lamina 2‐11 …”

Section: Discussionsupporting

confidence: 87%

“…The incidence of bilateral FT ranges from 0% 2 to 71% 8 . Our data in adult larynges was 36%, and all were located asymmetrically as observed by Grüber 4 and Guerrier and Prioton 6 . On the contrary, Afifi 8 described them as symmetrically situated.…”

Section: Discussionsupporting

confidence: 86%

“…Grüber 4 described two cases of double FT from a total of 179 larynges. In both cases, the upper FT was much larger than the lower.…”

Section: Discussionmentioning

confidence: 99%

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Foramen Thyroideum: A Comparative Study in Embryos, Fetuses, and Adults

et al. 1997

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The incidence and characteristics of foramen thyroideum (FT) in embryonic and/or fetal larynges have not been established. In the present study, 90 adult larynges and 53 embryonic-fetal larynges were studied. The incidence of FT during the embryonic-fetal period (57%) was statistically different from the adult period (31%) (P = 0.005). All the FT found in the adult period contained vessels and/or nerves, while in the embryonic and fetal period only 63% presented neurovascular elements (P < 0.001). The origin of FT in the embryonic period and its persistence during adult life is discussed.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 86%

“…Grüber 4 described two cases of double FT from a total of 179 larynges. In both cases, the upper FT was much larger than the lower.…”

Section: Discussionmentioning

confidence: 99%

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Foramen Thyroideum: A Comparative Study in Embryos, Fetuses, and Adults

et al. 1997

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“…Shortly after its commencement, the superior thyroid artery gives rise to the superior laryngeal artery, which pierces the thyrohyoid membrane, accompanied by the internal branch of the superior laryngeal nerve. The superior laryngeal artery, together with the internal branch of the superior laryngeal nerve, may enter the space between the muscular wall of the pharynx and its mucosal membrane via the thyroid foramen in about 20 % of individuals (29); in one study, this phenomenon was observed in 27 % of specimens (18). The superior laryngeal artery anastomoses with its contralateral fellow, as does the inferior laryngeal artery (15).…”

Section: Arterial Supply and Gross Innervation Of The Larynxmentioning

confidence: 99%

Functional Anatomy of the Human Intrinsic Laryngeal Muscles

Pretterklieber

2003

Eur Surg

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Background: Since the beginning of the Christian era, numerous reports have dealt with the construction and functional organization of the larynx, thus stressing its role as the keystone of vocalization in vertebrates. The purpose of this review is to provide a comprehensive summary of basic anatomical facts and to point out certain new aspects of the innervation of laryngeal muscles. Methods: The data presented herein were collected from a preliminary gross anatomical study performed in six human individuals at our institute, and from published literature. Results: The basic framework of the human larynx is composed of the hyaline thyroid, cricoid and arytenoid cartilages, the fibroelastic epiglottis and the hyoid bone. Two pairs of synovial articulations, i.e. the cricothyroid and cricoarytenoid joints, provide the mobility needed to adjust the tension of the vocal ligaments. The intrinsic laryngeal muscles may be divided into three functional groups: (i) muscles varying the rima glottidis (the transverse arytenoid as well as the lateral and posterior cricoarytenoid muscles); (ii) muscles regulating tension in the vocal ligaments (i.e. the cricothyroid, posterior cricoarytenoid as well as the compound thyroarytenoid and vocalis muscles) and (iii) muscles modifying the laryngeal inlet (the so-called 'sphincter aditus', which is formed by the oblique arytenoid and aryepiglottic muscles and counteracted by the thyroepiglottic muscle). They are innervated by the superior and inferior laryngeal nerves branching off the vagus nerve. The external branch of the superior laryngeal nerve exclusively supplies the cricothyroid muscle. There is strong evidence that the lateral cricoarytenoid and the thyroarytenoid muscles are solely supplied by the inferior laryngeal nerve. All other intrinsic laryngeal muscles seem to receive motor fibres either from both laryngeal nerves or from the internal branch of the superior laryngeal nerve alone. Conclusions: Thus, the traditional concept of motor innervation of the larynx seems to be out of date. In fact, the internal branch of the superior laryngeal nerve should no longer be seen as purely sensory but rather -as also the inferior laryngeal nerve -as a mixed nerve containing sensory as well as motor fibres. (Eur. Surg. 2003; 35:250-258) Funktionelle Anatomie der menschlichen Kehlkopfmuskeln Zusammenfassung: Grundlagen: Schon seit dem Beginn unserer Zeitrechnung haben sich viele Forscher mit den verschiedenen Aspekten des Aufbaus und der funktionellen Organisation des Kehlkopfes auseinandergesetzt. Dieses Interesse resultiert aus seiner bedeutenden Position als Grundlage der Stimmgebung bei Mensch und Tier. Aufgabe dieser Übersichtsarbeit ist es, eine Zusammenfassung der anatomischen Fakten zu präsentieren und einige neue Aspekte der motorischen Innervation der Kehlkopfmuskeln aufzuzeigen. Methodik: Die vorliegenden Daten entstammen einer noch nicht abgeschlossenen anatomischen Studie, die an sechs menschlichen Individuen an unserem Institut durchgeführt wurde. Weitere Angaben w...

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The thyroid foramen

Raikos

Paraskevas

2013

Clinical Anatomy

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This study presents an analytic review about the trait of the thyroid foramen. A detailed description about the demographics, frequency, embryology, morphometry, possible content, topography, clinical and surgical considerations is provided. The overall frequency was 28.3% in adults, 15% in children and neonates, 40.6% in embryos and fetuses. The content of the thyroid foramina was a neurovascular bundle in 41.2% of studies. An equal number of studies define a nerve as the common content, while only in 17.6% the usual content was a vessel. Interestingly, in 11.8% the content was just connective tissue or a pit. An updated classification is presented taking into account all the possible content that can cross through a thyroid foramen. The variant is of high interest for surgeons intervening in the larynx due to potential complications such as local bleeding and unwanted neural impairment. The oblique line of the thyroid lamina acts as the best topographical landmark to identify any aberrant anatomy related to a thyroid foramen.

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Ueber das Foramen in den Laminae der Cartilago thyreoidea

Cited by 6 publications

References 0 publications

Foramen Thyroideum: A Comparative Study in Embryos, Fetuses, and Adults

Foramen Thyroideum: A Comparative Study in Embryos, Fetuses, and Adults

Functional Anatomy of the Human Intrinsic Laryngeal Muscles

The thyroid foramen

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