{"id":949,"date":"2024-02-09T12:02:30","date_gmt":"2024-02-09T12:02:30","guid":{"rendered":"https:\/\/diulylovatto.com\/blog\/?p=949"},"modified":"2026-02-19T00:45:03","modified_gmt":"2026-02-19T00:45:03","slug":"anatomia-e-fisiologia-da-voz-parte-ii","status":"publish","type":"post","link":"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/","title":{"rendered":"Anatomia e fisiologia da voz \u2013 Parte II"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sum\u00e1rio<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabela de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Musculos_Intrinsecos_da_Laringe\" >M\u00fasculos Intr\u00ednsecos da Laringe<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Cricoaritenoideo_Posterior_CAP\" >Cricoariten\u00f3ideo Posterior (CAP)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Cricoaritenoideo_Lateral_CAL\" >Cricoariten\u00f3ideo Lateral (CAL)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Interaritenoideos_IA\" >Interaritenoideos (IA)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Cricotireoideo_CT\" >Cricotire\u00f3ideo (CT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Tireoaritenoideo_TA\" >Tireoariten\u00f3ideo (TA)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Estrutura_das_Pregas_Vocais\" >Estrutura das Pregas Vocais<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Ariepiglotico_e_Tireoepiglotico\" >Ariepigl\u00f3tico e Tireoepiglotico<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Resumo_dos_musculos_intrinsecos_da_laringe\" >Resumo dos m\u00fasculos intr\u00ednsecos da laringe<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Predominio_de_tipos_de_fibras_dos_musculos_intrinsecos\" >Predom\u00ednio de tipos de fibras dos m\u00fasculos intr\u00ednsecos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-ii\/#Musculos_Extrinsecos_da_Laringe\" >M\u00fasculos Extrinsecos da Laringe<\/a><\/li><\/ul><\/nav><\/div>\n<p><span style=\"font-size: 14pt;\">No post de hoje sobre anatomia e fisiologia da voz, vamos abordar os m\u00fasculos intr\u00ednsecos e extr\u00ednsecos da laringe.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Em primeiro lugar, falaremos sobre os m\u00fasculos que permitem ajustes fonat\u00f3rios variados e os que movimentam toda a estrutura da laringe.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Dessa forma, damos sequ\u00eancia \u00e0 nossa s\u00e9rie sobre anatomia e fisiologia da voz.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Musculos_Intrinsecos_da_Laringe\"><\/span>M\u00fasculos Intr\u00ednsecos da Laringe<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-985 \" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior.jpg\" alt=\"\" width=\"697\" height=\"392\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-218x122.jpg 218w\" sizes=\"(max-width: 697px) 100vw, 697px\" \/><\/p>\n<p><span style=\"font-size: 14pt;\">Os m\u00fasculos intr\u00ednsecos da laringe s\u00e3o essenciais para o ajuste da fonte gl\u00f3tica.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Em outras palavras, todos esses t\u00eam sua origem e inser\u00e7\u00e3o (ponto fixo e ponto m\u00f3vel), ou seja, onde o m\u00fasculo permanece fixo durante a contra\u00e7\u00e3o e onde a sua extremidade est\u00e1 inserida, que \u00e9 m\u00f3vel.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Veremos abaixo os m\u00fasculos em uma vis\u00e3o posterior da laringe, ou seja, a parte de tr\u00e1s da laringe.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cricoaritenoideo_Posterior_CAP\"><\/span><span style=\"font-size: 14pt;\">Cricoariten\u00f3ideo Posterior (CAP)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img decoding=\"async\" class=\"alignnone wp-image-989 \" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2.jpg\" alt=\"\" width=\"700\" height=\"394\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-218x122.jpg 218w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p><span style=\"font-size: 14pt;\">O CAP \u00e9 o m\u00fasculo mais importante na respira\u00e7\u00e3o, sendo o respons\u00e1vel pela abertura das pregas vocais.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Ele tem sua origem na cartilagem cricoidea e inser\u00e7\u00e3o nas cartilagens aritenoideas.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Isso significa que o cricoaritenoideo posterior (CAP) puxa os processos musculares para tr\u00e1s aproximando-os, e assim, afastando o processo vocal (as pregas vocais).<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Isso faz com que as pregas vocais abram, esse movimento de abertura \u00e9 chamado de <strong>abdu\u00e7\u00e3o<\/strong>.<\/span><\/p>\n<div class=\"video_embed clearfix\"><div class=\"video_embed clearfix\"><iframe title=\"M\u00fasculo Cricoariten\u00f3ideo Posterior\" src=\"https:\/\/player.vimeo.com\/video\/911621706?dnt=1&amp;app_id=122963\" width=\"500\" height=\"281\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media\"><\/iframe><\/div><\/div>\n<p><span style=\"font-size: 14pt;\">OBS.: H\u00e1 evid\u00eancias da presen\u00e7a do CAP dando suporte ao seu papel de estabilizador das aritenoides quando h\u00e1 o estiramento das pregas vocais.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cricoaritenoideo_Lateral_CAL\"><\/span><span style=\"font-size: 14pt;\">Cricoariten\u00f3ideo Lateral (CAL)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img decoding=\"async\" class=\"alignnone wp-image-993 \" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5.jpg\" alt=\"\" width=\"700\" height=\"394\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-218x122.jpg 218w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p><span style=\"font-size: 14pt;\">O CAL, por outro lado, \u00e9 um dos m\u00fasculos respons\u00e1veis pelo fechamento das pregas vocais, esse movimento de fechamento \u00e9 chamado de <strong>adu\u00e7\u00e3o<\/strong>.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Ele tamb\u00e9m tem sua origem na cartilagem cric\u00f3idea e inser\u00e7\u00e3o nas ariten\u00f3ides.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Durante a adu\u00e7\u00e3o, o fechamento das pregas vocais n\u00e3o \u00e9 completo, deixando uma fenda posterior entre as aritenoides, como mostra a imagem abaixo:<\/span><\/p>\n<div class=\"video_embed clearfix\"><div class=\"video_embed clearfix\"><iframe title=\"M\u00fasculo Cricoariten\u00f3ideo Lateral\" src=\"https:\/\/player.vimeo.com\/video\/911630223?dnt=1&amp;app_id=122963\" width=\"500\" height=\"281\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media\"><\/iframe><\/div><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Interaritenoideos_IA\"><\/span><span style=\"font-size: 14pt;\">Interaritenoideos (IA)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-996 \" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3.jpg\" alt=\"\" width=\"698\" height=\"393\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-218x122.jpg 218w\" sizes=\"(max-width: 698px) 100vw, 698px\" \/><\/p>\n<p><span style=\"font-size: 14pt;\">Os m\u00fasculos interaritenoideos, que incluem as por\u00e7\u00f5es transversa e obl\u00edqua, t\u00eam sua origem em uma cartilagem aritenoide e a sua inser\u00e7\u00e3o na outra cartilagem aritenoide.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">A contra\u00e7\u00e3o desses m\u00fasculos (transverso e obl\u00edquo) resulta no fechamento total posterior das pregas vocais.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Veja em a\u00e7\u00e3o:<\/span><\/p>\n<div class=\"video_embed clearfix\"><div class=\"video_embed clearfix\"><iframe title=\"M\u00fasculos Interariten\u00f3ideos (obl\u00edquo e transverso)\" src=\"https:\/\/player.vimeo.com\/video\/911821303?dnt=1&amp;app_id=122963\" width=\"500\" height=\"281\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media\"><\/iframe><\/div><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Cricotireoideo_CT\"><\/span><span style=\"font-size: 14pt;\">Cricotire\u00f3ideo (CT)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-999\" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-1-1.jpg\" alt=\"Anatomia e fisiologia da voz\" width=\"698\" height=\"393\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-1-1.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-1-1-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-1-1-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-1-1-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-1-1-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-1-1-218x122.jpg 218w\" sizes=\"(max-width: 698px) 100vw, 698px\" \/><\/p>\n<p><span style=\"font-size: 14pt;\">O CT, tem sua origem na cartilagem cric\u00f3idea e inser\u00e7\u00e3o na cartilagem tire\u00f3idea.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Ao se contrairem puxam a cartiagem tire\u00f3idea para frente e para baixo num movimento de b\u00e1scula.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">O CT \u00e9 o m\u00fasculo respons\u00e1vel pelos agudos (alongamento), pois ao se contrair, puxa a cartilagem tire\u00f3idea, e a prega vocal que tem sua origem nessa cartilagem \u00e9 estirada.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Veja o m\u00fasculo CT em a\u00e7\u00e3o (vista de cima), puxando a cartilagem tire\u00f3idea para baixo e para frente alongando as pregas vocais:<\/span><\/p>\n<div class=\"video_embed clearfix\"><div class=\"video_embed clearfix\"><iframe title=\"M\u00fasculo Cricotire\u00f3ideo (CT)\" src=\"https:\/\/player.vimeo.com\/video\/911824060?dnt=1&amp;app_id=122963\" width=\"500\" height=\"281\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media\"><\/iframe><\/div><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Tireoaritenoideo_TA\"><\/span><span style=\"font-size: 14pt;\">Tireoariten\u00f3ideo (TA)<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1003\" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-1.jpg\" alt=\"Anatomia e fisiologia da voz\" width=\"696\" height=\"392\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-1.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-1-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-1-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-1-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-1-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-3-1-218x122.jpg 218w\" sizes=\"(max-width: 696px) 100vw, 696px\" \/><\/p>\n<p><span style=\"font-size: 14pt;\">O TA tem origem na cartilagem tire\u00f3idea (ponto fixo) e inser\u00e7\u00e3o na cartilagem aritenoidea (ponto m\u00f3vel).<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Lembrando que o m\u00fasculo faz contra\u00e7\u00e3o sempre na sua origem, no seu ponto fixo, ou seja, ir\u00e1 puxar a cartilagem aritenoidea (insers\u00e3o) em dire\u00e7\u00e3o a tire\u00f3idea (origem).<\/span><\/p>\n<div class=\"video_embed clearfix\"><div class=\"video_embed clearfix\"><iframe title=\"M\u00fasculo Tireoariten\u00f3ideo (TA)\" src=\"https:\/\/player.vimeo.com\/video\/911825618?dnt=1&amp;app_id=122963\" width=\"500\" height=\"281\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media\"><\/iframe><\/div><\/div>\n<p><span style=\"font-size: 14pt;\">Para alguns autores consiste em dois principais feixes, um interno (vocalis) e outro externo (rico em fibras CR).<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">O <strong>TA interno<\/strong> ou tireovocal, ao se contrair, aumenta a for\u00e7a e a resist\u00eancia gl\u00f3tica, regulando a intensidade vocal, aumentando a massa e, dessa forma, diminuindo o comprimento das pregas vocais. Isso ocasiona o ac\u00famulo da massa da mucosa que reveste as pregas vocais, sendo <\/span><span style=\"font-size: 14pt;\">o respons\u00e1vel pelo controle da frequ\u00eancia.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">O <strong>TA externo<\/strong> ou tireomuscular \u00e9 altamente fatig\u00e1vel e predominantemente adutor, \u00e9 importante para a produ\u00e7\u00e3o e manuten\u00e7\u00e3o da firmeza gl\u00f3tica, com maior estabilidade do fechamento gl\u00f3tico.\u00a0<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">De forma geral existem dois tipos de contra\u00e7\u00e3o muscular.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">A <strong>conc\u00eantrica <\/strong>acontece quando realizamos for\u00e7a de contra\u00e7\u00e3o muscular, onde o m\u00fasculo diminui seu tamanho aproximando a origem da inser\u00e7\u00e3o e a <strong>exc\u00eantrica<\/strong> ocorre quando realizamos for\u00e7a, alongando o comprimento dos m\u00fasculos, distanciando a origem da inser\u00e7\u00e3o.\u00a0<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">O TA na conc\u00eantrica mant\u00e9m tens\u00e3o encurtando as pregas vocais e na e<\/span><span style=\"font-size: 14pt;\">xc\u00eantrica, o m\u00fasculo mant\u00e9m a contra\u00e7\u00e3o sendo estirada.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\"><strong>Curiosidade:<\/strong> No movimento de abertura e fechamento das pregas vocais, a origem das pregas vocais que est\u00e3o conectadas na cartilagem tireoidea nunca se abre, mas existe um pequeno afastamento entre as p.v.. A parte de tr\u00e1s (posterior) onde ela est\u00e1 inserida nas cartilagens aritenoideas \u00e9 que ir\u00e1 fazer o movimento de abertura (abre e fecha como um &#8220;V&#8221;).<\/span><\/p>\n<h2 style=\"text-align: left;\"><span class=\"ez-toc-section\" id=\"Estrutura_das_Pregas_Vocais\"><\/span>Estrutura das Pregas Vocais<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Segundo Hirano (1993 e 1996), a estrutura das pregas vocais \u00e9 um complexo corpo-cobertura.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">O corpo \u00e9 o m\u00fasculo vocal, enquanto que a cobertura inclui a mucosa e o epit\u00e9lio (parte perolada da mucosa).<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">A divis\u00e3o das camadas \u00e9 a seguinte:<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1005\" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-1.jpg\" alt=\"Anatomia e fisiologia da voz\" width=\"698\" height=\"393\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-1.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-1-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-1-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-1-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-1-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-5-1-218x122.jpg 218w\" sizes=\"(max-width: 698px) 100vw, 698px\" \/><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><span style=\"font-size: 14pt;\">Corpo: m\u00fasculo vocal<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Transi\u00e7\u00e3o: as camadas intermedi\u00e1ria e profunda (ligamento vocal)<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Cobertura: l\u00e2mina pr\u00f3pria, camada superficial e epit\u00e9lio.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 14pt;\">O m\u00fasculo TA \u00e9 recoberto por mucosa e essa mucosa tem 3 camadas:<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 14pt;\"><strong>Camada profunda:<\/strong> \u00e9 a mais pr\u00f3xima do m\u00fasculo, composta por m\u00fasculos de sustenta\u00e7\u00e3o.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\"><strong>Camada intermedi\u00e1ria:<\/strong> possui uma mistura de fibras de sustenta\u00e7\u00e3o e fibras el\u00e1sticas.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\"><strong>Camada superficial: <\/strong>\u00e9 a camada mais el\u00e1stica, mais flex\u00edvel, tamb\u00e9m chamada de espa\u00e7o de Reinke.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 14pt;\">Quanto mais pr\u00f3xima \u00e0 superf\u00edcie, mais flex\u00edvel \u00e9 a camada.\u00a0 As camadas intermedi\u00e1ria e a profunda formam o ligamento vocal.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1007\" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/jfidjgid.jpg\" alt=\"Anatomia e fisiologia da voz\" width=\"698\" height=\"393\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/jfidjgid.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/jfidjgid-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/jfidjgid-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/jfidjgid-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/jfidjgid-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/jfidjgid-218x122.jpg 218w\" sizes=\"(max-width: 698px) 100vw, 698px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ariepiglotico_e_Tireoepiglotico\"><\/span>Ariepigl\u00f3tico e Tireoepiglotico<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Ariepigl\u00f3tico tem origem na aritenoide e inser\u00e7\u00e3o na epiglote.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">J\u00e1 o Tireoepiglotico tem origem na tireoide e inser\u00e7\u00e3o na epiglote, trazendo a epiglote de volta ao seu est\u00e1gio normal.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1009\" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-6.jpg\" alt=\"Anatomia e fisiologia da voz\" width=\"700\" height=\"394\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-6.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-6-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-6-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-6-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-6-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-6-218x122.jpg 218w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Resumo_dos_musculos_intrinsecos_da_laringe\"><\/span>Resumo dos m\u00fasculos intr\u00ednsecos da laringe<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><span style=\"font-size: 14pt;\"><strong>TA:\u00a0<\/strong> \u00c9 respons\u00e1vel pelos graves, porque ele encurta a prega vocal.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\"><strong>CT:<\/strong> Respons\u00e1vel pelos agudos (alongamento passivo), ao se contrair faz com que o TA alongue (quando o CT contrai, faz girar as aritenoides abrindo as pregas vocais).<\/span><\/li>\n<li><span style=\"font-size: 14pt;\"><strong>CAP<\/strong>: \u00danico musculo respons\u00e1vel pela abertura (abdu\u00e7\u00e3o) das pregas vocais.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\"><strong>CAL<\/strong>: M\u00fasculo respons\u00e1vel pelo fechamento da parte anterior das pregas vocais.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\"><strong>IA<\/strong>: Respons\u00e1vel pelo fechamento da parte posterior das pregas vocais.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1010\" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-7.jpg\" alt=\"Anatomia e fisiologia da voz\" width=\"696\" height=\"392\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-7.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-7-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-7-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-7-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-7-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-7-218x122.jpg 218w\" sizes=\"(max-width: 696px) 100vw, 696px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Predominio_de_tipos_de_fibras_dos_musculos_intrinsecos\"><\/span>Predom\u00ednio de tipos de fibras dos m\u00fasculos intr\u00ednsecos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Os m\u00fasculos que tem fun\u00e7\u00e3o postural, de contra\u00e7\u00e3o constante durante muito tempo ou atividade repetida, precisam ser mais resistentes.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1012\" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-8.jpg\" alt=\"Anatomia e fisiologia da voz\" width=\"698\" height=\"393\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-8.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-8-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-8-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-8-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-8-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-8-218x122.jpg 218w\" sizes=\"(max-width: 698px) 100vw, 698px\" \/><\/p>\n<p><span style=\"font-size: 14pt;\"><strong>Fibras do tipo I<\/strong> s\u00e3o fibras de resist\u00eancia, ou seja, o m\u00fasculo tem a capacidade de manter a contra\u00e7\u00e3o por mais tempo, ou de fazer contra\u00e7\u00f5es repetidas por muito mais tempo, como o CAP e o CT.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\"><strong>Fibras do<\/strong> <strong>tipo II<\/strong> s\u00e3o fibras de for\u00e7a e agilidade, o m\u00fasculo tem menor resist\u00eancia, s\u00e3o mais fatig\u00e1veis, mas tem energia mais r\u00e1pida em menor quantidade. Como o TA, CAL e IA, pois estes m\u00fasculos precisam fazer o fechamento r\u00e1pido da prega vocal para prote\u00e7\u00e3o das vias a\u00e9reas.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Musculos_Extrinsecos_da_Laringe\"><\/span>M\u00fasculos Extrinsecos da Laringe<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1016\" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-2.jpg\" alt=\"Anatomia e fisiologia da voz\" width=\"695\" height=\"391\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-2.jpg 1920w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-2-300x169.jpg 300w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-2-1024x576.jpg 1024w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-2-768x432.jpg 768w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-2-1536x864.jpg 1536w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2024\/02\/Vista-posterior-2-2-218x122.jpg 218w\" sizes=\"(max-width: 695px) 100vw, 695px\" \/><\/p>\n<p><span style=\"font-size: 14pt;\">Os m\u00fasculos extr\u00ednsecos da laringe permitem o levantamento e abaixamento da laringe.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">A <strong>musculatura supra-hi\u00f3idea<\/strong>, localizada acima do osso hioide, \u00e9 respons\u00e1vel por elevar e tracionar anteriormente a laringe, al\u00e9m de auxiliar na abertura da boca. Entre esses m\u00fasclos est\u00e3o: Dig\u00e1strico (ventre anterior e posterior), milo-hi\u00f3ideo, hioglosso e estilo-hi\u00f3ideo. <\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Quando a musculatura supra-hioidea se contrai, o osso hioide \u00e9 elevado, puxando a laringe para cima. <\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Durante a abertura da boca, o ponto fixo \u00e9 o osso hioide e o ponto m\u00f3vel \u00e9 a mand\u00edbula. No entanto, q<\/span><span style=\"font-size: 14pt;\">uando a laringe \u00e9 elevada, o ponto fixo \u00e9 a mand\u00edbula e o m\u00f3vel \u00e9 o osso hioide.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">A <strong>musculatura infra-hi\u00f3idea<\/strong>, situada abaixo do osso hi\u00f3ide, \u00e9 respons\u00e1vel pelo abaixamento da laringe. Esses m\u00fasculos incluem: tireo-hi\u00f3ideo, esterno-hi\u00f3ideo, omo-hi\u00f3ideo (traciona a laringe para tr\u00e1s) e esternotire\u00f3ideo.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">A diferen\u00e7a sobre origem e inser\u00e7\u00e3o dos m\u00fasculos extr\u00ednsecos da laringe, \u00e9 que uma parte estar\u00e1 conectada \u00e0 laringe, especificamente no osso hi\u00f3ide, enquanto outra parte n\u00e3o ter\u00e1 essa conex\u00e3o direta com a laringe.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Gostou de saber mais sobre os m\u00fasculos intr\u00ednsecos e extr\u00ednsecos da laringe?<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">No post anterior discutimos sobre <a href=\"https:\/\/diulylovatto.com\/blog\/anatomia-e-fisiologia-da-voz-parte-i\/\">Anatomia e Fisiologia da Voz &#8211; parte I<\/a>, hoje seguimos o assunto Anatomia e Fisiologia da Voz &#8211; Parte II. No pr\u00f3ximo post, exploraremos o funcionamento dessas estruturas que discutimos at\u00e9 agora.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Por fim, espero que o conte\u00fado de hoje tenha sido \u00fatil.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">At\u00e9 a pr\u00f3xima!<\/span><\/p>\n<p><span style=\"font-size: 14pt;\"><em><strong>Diuly<\/strong><\/em><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-462\" src=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2023\/08\/Temas-Em-Voz-500X500-e1692630382902-219x300.png\" alt=\"\" width=\"219\" height=\"300\" srcset=\"https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2023\/08\/Temas-Em-Voz-500X500-e1692630382902-219x300.png 219w, https:\/\/diulylovatto.com\/blog\/wp-content\/uploads\/2023\/08\/Temas-Em-Voz-500X500-e1692630382902.png 342w\" sizes=\"(max-width: 219px) 100vw, 219px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>No post de hoje sobre anatomia e fisiologia da voz, vamos abordar os m\u00fasculos intr\u00ednsecos e extr\u00ednsecos da laringe. Em primeiro lugar, falaremos sobre os m\u00fasculos que permitem ajustes fonat\u00f3rios variados e os que movimentam toda a estrutura da laringe. Dessa forma, damos sequ\u00eancia \u00e0 nossa s\u00e9rie sobre anatomia e fisiologia da voz. M\u00fasculos Intr\u00ednsecos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1024,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[1,9],"tags":[],"class_list":["post-949","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-feed","category-temas-em-voz"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Anatomia e fisiologia da voz \u2013 Parte II<\/title>\n<meta name=\"description\" content=\"No post de hoje sobre anatomia e fisiologia da voz, vamos falar sobre os m\u00fasculos intr\u00ednsecos e extr\u00ednsecos da laringe.\" \/>\n<meta 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