{"id":1792,"date":"2020-08-17T13:29:06","date_gmt":"2020-08-17T13:29:06","guid":{"rendered":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/thorax\/mediastinum\/thymus\/"},"modified":"2022-09-03T18:00:21","modified_gmt":"2022-09-03T16:00:21","slug":"thymus","status":"publish","type":"page","link":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/thorax\/mediastinum\/thymus\/","title":{"rendered":"Thymus"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><div class=\"intro\">The thymus is a\u00a0primary lymphatic gland\u00a0located in the inferior part of the neck. It is responsible for the maturation of T-cells.<\/div><\/p>\n\n\n\n<figure class=\"wp-block-image\" id=\"attachment_15544\"><a href=\"https:\/\/meddists.com\/wp-content\/uploads\/2018\/09\/thymus.png\" target=\"_blank\" title=\"Thymus\"><img decoding=\"async\" src=\"https:\/\/meddists.com\/wp-content\/uploads\/2018\/09\/thymus-600x295.png\" alt=\"\" class=\"wp-image-15544\"\/><\/a><figcaption><strong>Figure 1. <\/strong>Thymus\u00a0(Credit: OpenStax,\u00a0<a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/\">CC BY-SA 4.0<\/a>)<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The thymus lies within the anterior part of the superior mediastinum external to\u00a0the pericardium \u2014 between the\u00a0manubrium and the fibrous pericardium.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong> The thymus <strong>does not<\/strong> produce T-lymphocytes (they are produced by the bone marrow), but rather helps them maturate, and eliminates defective T-cells.<\/p>\n\n\n<span class=\"block-heading\" id=\"header_1\">\n<h4 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">Stages during life<\/h4>\n<\/span><span class=\"block-content\" id=\"contents_1\">\n\n\n<ol class=\"wp-block-list\"><li><strong>Thymus epithelialis<\/strong>. The initial face, formed during embryological development, until birth.<\/li><li><strong>Thymus lymphaticus<\/strong>. After birth and up to young adulthood, the thymus is highly active, producing T lymphocytes, and consists of plenty of lymphatic tissue.<\/li><li><strong>Thymus adiposus<\/strong>. During adulthood, the thymic lymphatic tissue is being replaced with adipose tissue.<\/li><\/ol>\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\">Neurovasculature<\/h4>\n<\/span><span class=\"block-content\" id=\"contents_2\">\n\n\n<figure class=\"wp-block-table\"><table class=\"pure-table\"><tbody><tr><td><strong>Blood supply<\/strong><\/td><td>Anterior intercostal arteries<br>Anterior mediastinal branches&nbsp;from the internal thoracic arteries<\/td><\/tr><tr><td><strong>Venous drainage<\/strong><\/td><td>Left brachiocephalic trunk<br>Inferior thyroid veins<br>Internal thoracic veins<\/td><\/tr><tr><td><strong>Innervation<\/strong><\/td><td>Vagus nerve<br>Sympathetic trunk<\/td><\/tr><tr><td><strong>Lymphatic drainage<\/strong><\/td><td>Parasternal nodes<br>Tracheobronchial nodes<br>Brachiocephalic nodes<\/td><\/tr><\/tbody><\/table><figcaption><strong>Table 1.<\/strong> Neurovasculature of the thymus.<\/figcaption><\/figure>\n<\/span><div id=\"the_titles\" style=\"display:none;\"><h4 class=\"wp-block-heading\" class=\"wp-block-heading\">Stages during life<\/h4><h4 class=\"wp-block-heading\" class=\"wp-block-heading\">Neurovasculature<\/h4><\/div>","protected":false},"excerpt":{"rendered":"<p>The thymus lies within the anterior part of the superior mediastinum external to\u00a0the pericardium \u2014 between the\u00a0manubrium and the fibrous pericardium. Note: The thymus does not produce T-lymphocytes (they are produced by the bone marrow), but rather helps them maturate, and eliminates defective T-cells. Stages during life Thymus epithelialis. The initial face, formed during embryological [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1775,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1792","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Thymus &#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\/thorax\/mediastinum\/thymus\/\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\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\\\/thorax\\\/mediastinum\\\/thymus\\\/\",\"url\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/thorax\\\/mediastinum\\\/thymus\\\/\",\"name\":\"Thymus &#8211; 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