Larynges
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Surgical approach to the thyroarytenoid branch of the inferior laryngeal nerve through the thyroid cartilage
ABSTRACT PURPOSE: To describe the anatomical course of the intralaryngeal portion of the inferior laryngeal nerve (ILN) and to standardize the surgical access to its thyroarytenoid branch (TAb) through the thyroid cartilage. METHODS: Under surgical microscopy, 33 adult human excised larynges were dissected, to expose the intralaryngeal portion of ILN. The
Acta Cir. Bras.. Publicado em: 2016-07
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2. Diffusion of aniline blue injected into the thyroarytenoid muscle as a proxy for botulinum toxin injection: an experimental study in cadaver larynges
INTRODUCTION: Endolaryngeal injection of botulinum toxin into the thyroarytenoid (TA) muscle is one of the methods for treatment of focal laryngeal dystonia. However, after treatment, there is variation in laryngeal configuration as well as the side effects reported by patients. As a consequence of the functional variability of results, it was hypothesized t
Int. Arch. Otorhinolaryngol.. Publicado em: 2013-09
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3. Histologic study of corticosteroid injection in the acute vocal fold wound healing in a rabbit model / Estudo histológico da ação do corticosteróide injetável no processo agudo de cicatrização das pregas vocais de coelhos
Injectable corticosteroids have been used in phonosurgery to prevent scarring of the vocal fold due to their effects on wound healing, and to assure better voice quality. The aim of this study is to evaluate histologically the effects of dexamethasone infiltration on acute vocal fold wound healing in rabbits 3 and 7 days after surgically-induced injury, by q
Publicado em: 2009
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4. Distribuição do colágeno tipo I, colágeno tipo III e versican na lâmina própria da prega vocal humana de fetos e adultos: método histoquímico e imunoistoquímico / Collagen type I, collagen type III and versican distribution within the lamina propria of fetal and adult human vocal fold : histochemical and immunohistochemical method
Extracellular matrix has an important rule in the vocal fold physiology and the knowledge about your components is necessary. Fewer studies about matrix extracellular and no studies about versican in fetuses, and the necessity to improve the knowledge about extracellular matrix components in adults group came us to the elaboration of this study that has the
Publicado em: 2008
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5. ANÁLISE DOS SONS DA DEGLUTIÇÃO PELO SONAR DOPPLER EM INDIVÍDUOS DE DOIS A QUINZE ANOS SEM DISFAGIA OROFARÍNGEA
O objetivo deste estudo é verificar a aplicabilidade do sonar Doppler na ausculta cervical para análise dos sons da deglutição em 90 indivíduos sem disfagia orofaríngea na faixa etária de dois a 15 anos de idade e estabelecer um perfil numérico com base nos achados acústico e visual. Para uma análise comparativa os indivíduos são pareados pelo se
Publicado em: 2008
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6. Distribuição das fibras colágenas e do sistema de fibras elásticas na camada superficial da lâmina própria da prega vocal com edema de Reinke / Distribution of collagen fibers and elastic system fibers in the superficial layer of the lamina propria of the vocal fold with Reinkes edema
The physiopathological mechanisms underlying Reinkes edema are still unknown and few studies addressed alterations in the fibrillar proteins, collagen and elastin, in extracellular matrix with Reinkes edema. This study was idealized to describe the distribution of collagen fibers and elastic system fibers in Reinkes space with Reinkes edema, comparing with n
Publicado em: 2008
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7. Estudo histoquímico e ultra-estrutural da distribuição das fibras da matriz extracelular na prega vocal humana fetal no período perinatal / Histochemical and ultrastructural study on the distribution of the extracellular matrix fibers in the human fetal vocal fold
It is currently believed that, in humans, the vocal ligament develops after birth. However, there is no consensus in the literature about the age of its surge. Most papers describe that in the newborn, the lamina propria shows the presence of some sparse fibers without any particular organization. The main purpose of this study was to obtain information rega
Publicado em: 2008
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8. Análise tomográfica para o planejamento da tireoplastia tipo I: estudo experimental em laringes humanas excisadas / Tomographic analysis for type I thyroplasty: experimental study in human cadaveric larynges
INTRODUÇÃO: A tireoplastia tipo I é uma cirurgia freqüentemente utilizada para reabilitação de pacientes sintomáticos com paralisia laríngea. Consiste na medialização da prega vocal através da introdução de um implante por uma janela realizada na lâmina da cartilagem tireóidea. O conhecimento preciso da projeção da prega vocal sobre a lâmin
Publicado em: 2007
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9. Vibração das pregas vocais pré e pós aproximação cricotireóidea: estudo experimental em laringes humanas por videoquimografia. / Vibratory pattern of the vocal folds pre and post cricothyroid approximation: experimental study in human larynges by videokymography.
The cricothyroid approximation simulates the cricothyroid muscle contraction by approximating the cricoid and thyroid cartilages. By this surgery, the vocal folds are lengthened. Consequently, the fundamental frequency of the voice is increased. The main indications for this procedure are patients presenting voice hoarseness due to superior laryngeal nerve
Publicado em: 2002
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10. The larynx of roaring and non-roaring cats.
Dissections were made of the larynges of 14 species of the cat family, with representative specimens from all genera. It was found that the vocal folds of the larynx of genus Panthera (with the exception of the snow leopard) form the basic structure of a sound generator well-designed to produce a high acoustical energy. Combined with an efficient sound radia
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11. Descent of the larynx in chimpanzee infants
The human larynx descends during infancy and the early juvenile periods, and this greatly contributes to the morphological foundations of speech development. This developmental phenomenon is believed to be unique to humans. This concept has formed a basis for paleoanthropological studies on the origin and evolution of human speech. We used magnetic reson
National Academy of Sciences.
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12. Hermaphroditic, demasculinized frogs after exposure to the herbicide atrazine at low ecologically relevant doses
Atrazine is the most commonly used herbicide in the U.S. and probably the world. It can be present at several parts per million in agricultural runoff and can reach 40 parts per billion (ppb) in precipitation. We examined the effects of atrazine on sexual development in African clawed frogs (Xenopus laevis). Larvae were exposed to atrazine (0.01–200 ppb) b
National Academy of Sciences.