{"id":2135,"date":"2020-09-09T12:50:08","date_gmt":"2020-09-09T10:50:08","guid":{"rendered":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/head-and-neck\/neck\/larynx\/laryngeal-muscles\/"},"modified":"2021-01-01T18:59:35","modified_gmt":"2021-01-01T17:59:35","slug":"laryngeal-muscles","status":"publish","type":"page","link":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/","title":{"rendered":"Laryngeal muscles"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><div class=\"intro\">The muscles of the larynx move the larynx as a whole (extrinsic muscles), and move and change the shape of laryngeal components (intrinsic muscles), aiding in vocal production.<\/div><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/meddists.com\/wp-content\/uploads\/2019\/12\/larynx_superior.png\" target=\"_blank\" title=\"Laryngeal muscles\"><img decoding=\"async\" src=\"https:\/\/meddists.com\/wp-content\/uploads\/2019\/12\/larynx_superior-600x440.png\" alt=\"\" class=\"wp-image-22319\"\/><\/a><figcaption><strong>Figure 1. Superior view of the larynx<\/strong><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/larynx-posterior-view.png\" target=\"_blank\" title=\"Laryngeal muscles\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/larynx-posterior-view-1024x1024.png\" alt=\"\" class=\"wp-image-3534\" srcset=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/larynx-posterior-view-1024x1024.png 1024w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/larynx-posterior-view-300x300.png 300w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/larynx-posterior-view-150x150.png 150w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/larynx-posterior-view-768x768.png 768w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/larynx-posterior-view-1536x1536.png 1536w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/larynx-posterior-view-2048x2048.png 2048w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/larynx-posterior-view-50x50.png 50w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/larynx-posterior-view.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption><strong>Figure 2. Posterior view of the larynx<\/strong><\/figcaption><\/figure>\n\n\n<span class=\"block-heading\" id=\"header_1\">\n<h4 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">Classification<\/h4>\n<\/span><span class=\"block-content\" id=\"contents_1\">\n\n\n<p class=\"wp-block-paragraph\">The muscles of the larynx can be classified into two groups:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Extrinsic muscles, which originate from outside and attach to the hyoid bone. <\/li><li>Intrinsic muscles, which originate from and insert onto laryngeal cartilages.<\/li><\/ul>\n\n\n<\/span><span class=\"block-heading\" id=\"header_2\">\n<h4 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">Extrinsic muscles<\/h4>\n<\/span><span class=\"block-content\" id=\"contents_2\">\n\n\n<p class=\"wp-block-paragraph\">The extrinsic muscles of the larynx are the <strong>hyoid muscles<\/strong>. These muscles originate from outside of the larynx and insert onto the hyoid bone, which then moves the larynx as a whole.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Have an indirect influence on vocal production, through elevation (suprahyoid muscles) and depression (infrahyoid muscles).<\/li><li>The suprahyoid muscles include:<ul><li>Geniohyoid<\/li><li>Anterior belly of the digastric<\/li><li>Mylohyoid<\/li><li>Stylohyid<\/li><\/ul><\/li><li>The infrahyoid muscles include:<ul><li>Thyrohyoid<\/li><li>Omohyoid<\/li><li>Sternohyoid<\/li><li>Sternothyroid<\/li><\/ul><\/li><li>The hyoid muscles are discussed in-depth in <a href=\"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/head-and-neck\/neck\/muscles\/superficial-neck-muscles\/\">Superficial neck muscles<\/a><\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"855\" src=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2020\/10\/neck-muscles-1024x855.png\" alt=\"\" class=\"wp-image-2675\" srcset=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2020\/10\/neck-muscles-1024x855.png 1024w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2020\/10\/neck-muscles-300x251.png 300w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2020\/10\/neck-muscles-768x642.png 768w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2020\/10\/neck-muscles-1536x1283.png 1536w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2020\/10\/neck-muscles.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><strong>Figure 3. Extrinsic muscles of the larynx<\/strong> (Credit: OpenStax, CC BY-SA 4.0)<\/figcaption><\/figure>\n\n\n<\/span><span class=\"block-heading\" id=\"header_3\">\n<h4 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">Intrinsic muscles<\/h4>\n<\/span><span class=\"block-content\" id=\"contents_3\">\n\n\n<p class=\"wp-block-paragraph\">The intrinsic muscles of the larynx are muscles located around and within the larynx itself.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Have a direct influence on the shape, size, and length of the internal components of the larynx.<\/li><li>Actively participate in vocal production.<\/li><li>The intrinsic muscles include:<ul><li>Vocalis<\/li><li>Transverse and oblique arytenoids<\/li><li>Posterior cricoarytenoid<\/li><li>Lateral cricoarytenoid<\/li><li>Thyroarytenoid<\/li><li>Cricothyroid<\/li><\/ul><\/li><\/ul>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"pure-table\"><thead><tr><th>Muscle<\/th><th>Origin<\/th><th>Insertion<\/th><th>Innervation<\/th><th>Function<\/th><\/tr><\/thead><tbody><tr><td><strong>Vocalis<\/strong><\/td><td>Vocal process of the arytenoid<\/td><td>Vocal ligament<\/td><td>Inferior laryngeal branch of the recurrent laryngeal nerve (ILBRLN) from CN X<\/td><td>Fine-tuning<\/td><\/tr><tr><td><strong>Transverse and oblique arytenoids<\/strong><\/td><td>Muscular process of one arytenoid<\/td><td>Muscular process of the other arytenoid<\/td><td>ILBRLN<\/td><td>Abduction of the arytenoids (opening the rima glottis)<\/td><\/tr><tr><td><strong>Posterior cricoarytenoids<\/strong><\/td><td>Posterior surface of the cricoid lamina<\/td><td>Vocal process of the arytenoid cartilage<\/td><td>ILBRLN<\/td><td>Abduction of the arytenoids (opening the rima glottis)<\/td><\/tr><tr><td><strong>Lateral cricoarytenoids<\/strong><\/td><td>Anterior surface of the cricoid arch<\/td><td>Vocal process of the arytenoid cartilage<\/td><td>ILBRLN<\/td><td>Adduction of the vocal folds<\/td><\/tr><tr><td><strong>Thyroarytenoid<\/strong><\/td><td>Lower part of the thyroid laminae angle and cricothyroid ligament<\/td><td>Anterolateral surface of the arytenoid<\/td><td>ILBRLN<\/td><td>Relaxes the vocal ligament<\/td><\/tr><tr><td><strong>Cricothyroid<\/strong><\/td><td>Anterolateral cricoid cartilage<\/td><td>Inferior margin and horn of the thyroid cartilage<\/td><td>External branch of the superior laryngeal nerve (from CN X)<\/td><td>Tenses the vocal ligament<\/td><\/tr><\/tbody><\/table><figcaption><strong>Table 1. Muscle chart of the intrinsic muscles of the larynx<\/strong><\/figcaption><\/figure>\n<\/span><div id=\"the_titles\" style=\"display:none;\"><h4 class=\"wp-block-heading\" class=\"wp-block-heading\">Classification<\/h4><h4 class=\"wp-block-heading\" class=\"wp-block-heading\">Extrinsic muscles<\/h4><h4 class=\"wp-block-heading\" class=\"wp-block-heading\">Intrinsic muscles<\/h4><\/div>","protected":false},"excerpt":{"rendered":"<p>Classification The muscles of the larynx can be classified into two groups: Extrinsic muscles, which originate from outside and attach to the hyoid bone. Intrinsic muscles, which originate from and insert onto laryngeal cartilages. Extrinsic muscles The extrinsic muscles of the larynx are the hyoid muscles. These muscles originate from outside of the larynx and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2113,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2135","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Laryngeal muscles &#8211; Meddists<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/neck\\\/larynx\\\/laryngeal-muscles\\\/\",\"url\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/neck\\\/larynx\\\/laryngeal-muscles\\\/\",\"name\":\"Laryngeal muscles &#8211; Meddists\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/neck\\\/larynx\\\/laryngeal-muscles\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/neck\\\/larynx\\\/laryngeal-muscles\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/meddists.com\\\/wp-content\\\/uploads\\\/2019\\\/12\\\/larynx_superior-600x440.png\",\"datePublished\":\"2020-09-09T10:50:08+00:00\",\"dateModified\":\"2021-01-01T17:59:35+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/neck\\\/larynx\\\/laryngeal-muscles\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/neck\\\/larynx\\\/laryngeal-muscles\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/neck\\\/larynx\\\/laryngeal-muscles\\\/#primaryimage\",\"url\":\"https:\\\/\\\/meddists.com\\\/wp-content\\\/uploads\\\/2019\\\/12\\\/larynx_superior-600x440.png\",\"contentUrl\":\"https:\\\/\\\/meddists.com\\\/wp-content\\\/uploads\\\/2019\\\/12\\\/larynx_superior-600x440.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/neck\\\/larynx\\\/laryngeal-muscles\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"http:\\\/\\\/meddists.com\\\/learn\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pre-clinical\",\"item\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Anatomy\",\"item\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Skull, head, and neck\",\"item\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"Neck\",\"item\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/neck\\\/\"},{\"@type\":\"ListItem\",\"position\":6,\"name\":\"Larynx\",\"item\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/skull-head-and-neck\\\/neck\\\/larynx\\\/\"},{\"@type\":\"ListItem\",\"position\":7,\"name\":\"Laryngeal muscles\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/#website\",\"url\":\"https:\\\/\\\/meddists.com\\\/learn\\\/\",\"name\":\"Meddists\",\"description\":\"Let&#039;s Get Studying\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/meddists.com\\\/learn\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Laryngeal muscles &#8211; Meddists","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/","url":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/","name":"Laryngeal muscles &#8211; Meddists","isPartOf":{"@id":"https:\/\/meddists.com\/learn\/#website"},"primaryImageOfPage":{"@id":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/#primaryimage"},"image":{"@id":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/#primaryimage"},"thumbnailUrl":"https:\/\/meddists.com\/wp-content\/uploads\/2019\/12\/larynx_superior-600x440.png","datePublished":"2020-09-09T10:50:08+00:00","dateModified":"2021-01-01T17:59:35+00:00","breadcrumb":{"@id":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/#primaryimage","url":"https:\/\/meddists.com\/wp-content\/uploads\/2019\/12\/larynx_superior-600x440.png","contentUrl":"https:\/\/meddists.com\/wp-content\/uploads\/2019\/12\/larynx_superior-600x440.png"},{"@type":"BreadcrumbList","@id":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/laryngeal-muscles\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"http:\/\/meddists.com\/learn\/"},{"@type":"ListItem","position":2,"name":"Pre-clinical","item":"https:\/\/meddists.com\/learn\/pre-clinical\/"},{"@type":"ListItem","position":3,"name":"Anatomy","item":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/"},{"@type":"ListItem","position":4,"name":"Skull, head, and neck","item":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/"},{"@type":"ListItem","position":5,"name":"Neck","item":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/"},{"@type":"ListItem","position":6,"name":"Larynx","item":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/skull-head-and-neck\/neck\/larynx\/"},{"@type":"ListItem","position":7,"name":"Laryngeal muscles"}]},{"@type":"WebSite","@id":"https:\/\/meddists.com\/learn\/#website","url":"https:\/\/meddists.com\/learn\/","name":"Meddists","description":"Let&#039;s Get Studying","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/meddists.com\/learn\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/pages\/2135","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/comments?post=2135"}],"version-history":[{"count":11,"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/pages\/2135\/revisions"}],"predecessor-version":[{"id":3538,"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/pages\/2135\/revisions\/3538"}],"up":[{"embeddable":true,"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/pages\/2113"}],"wp:attachment":[{"href":"https:\/\/meddists.com\/learn\/wp-json\/wp\/v2\/media?parent=2135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}