{"id":9505,"date":"2017-01-30T08:00:30","date_gmt":"2017-01-30T07:00:30","guid":{"rendered":"http:\/\/codexvirtualis.fr\/codex\/?p=9505"},"modified":"2017-04-05T22:15:56","modified_gmt":"2017-04-05T20:15:56","slug":"semaine-05-2017","status":"publish","type":"post","link":"https:\/\/codexvirtualis.fr\/codex\/semaine-05-2017","title":{"rendered":"Semaine 05-2017"},"content":{"rendered":"<h2>Une citation<\/h2>\n<p>\u00ab\u00a0Nous voyons les choses non pas telles qu&rsquo;elles sont mais telles que nous sommes.\u00a0\u00bb<\/p>\n<p>E. Kant<\/p>\n<p> &nbsp; <\/p>\n<h2>Une image<\/h2>\n<figure style=\"width: 300px\" class=\"wp-caption alignnone\"><a rel=lightbox href=\"\/documents\/images\/histologie_articles\/vaisseaux\/veine_colon_lapin-WEB.jpg\" target=\"_blank\" rel=\"lightbox[9505]\"><img decoding=\"async\" src=\"\/documents\/images\/histologie_articles\/vaisseaux\/veine_colon_lapin-WEB.jpg\" width=\"300\" alt=\"Quel est cet organe ?\" class=\"size-medium\"\/><\/a><figcaption class=\"wp-caption-text\">Quel est cet organe ?<\/figcaption><\/figure>\n<p> &nbsp; <\/p>\n<p style=\"text-align: right;\"><a rel=\"lightbox\" href=\"\/images\/albums\/delices-histologiques\/mammifere-adulte\/vaisseaux-sanguins\/veine_colon_lapin.jpg\" target=\"_blank\">Voir l&rsquo;image de plus grande taille<\/a><\/p>\n<p> &nbsp; <\/p>\n<p style=\"text-align: right;\"><a rel=\"lightbox\" href=\"\/documents\/images\/histologie_articles\/vaisseaux\/veine_colon_lapin_legendee-WEB.jpg\" target=\"_blank\">Voir l&rsquo;image l\u00e9gend\u00e9e<\/a><\/p>\n<p> &nbsp; <\/p>\n<p>L&rsquo;image propos\u00e9e repr\u00e9sente une section d&rsquo;organe observ\u00e9e au microscope photonique au grossissement x400.<\/p>\n<p>De forme ovale ou circulaire en coupe transversale, l&rsquo;organe est creux et d\u00e9limit\u00e9 par une paroi.<\/p>\n<p> &nbsp; <\/p>\n<p>La paroi a une \u00e9paisseur tr\u00e8s inf\u00e9rieure \u00e0 la valeur du rayon de la lumi\u00e8re.<\/p>\n<p>Elle est constitu\u00e9e du centre vers la p\u00e9riph\u00e9rie :<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span>d&rsquo;une assise continue de cellules plates, correspondant \u00e0 un <a href=\"\/codex\/glossaire\/glossaire-de-d-a-h#epithelium\" target=\"_blank\">\u00e9pith\u00e9lium<\/a> ;<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span> d&rsquo;une fine tunique associant fibres musculaires lisses et de <a href=\"\/codex\/glossaire\/glossaire-de-t-a-z#tissu-conjonctif\" target=\"_blank\">tissu conjonctif<\/a> fibreux ;<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span> d&rsquo;une \u00e9paisse couche de tissu conjonctif fibreux, continue avec celle de l&rsquo;environnement.<\/p>\n<p> &nbsp; <\/p>\n<p>Cet agencement est caract\u00e9ristique des <a href=\"\/codex\/glossaire\/glossaire-de-t-a-z#veine\" target=\"_blank\">veines<\/a> de diam\u00e8tre important, tissulaires ou libres, responsables du drainage du sang des organes comme le c\u00f4lon.<\/p>\n<p>Elles poss\u00e8dent une paroi form\u00e9e de trois tuniques concentriques :<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span>une intima, au contact du sang, repr\u00e9sent\u00e9e par un <a href=\"\/codex\/glossaire\/glossaire-de-d-a-h#endothelium\" target=\"_blank\">endoth\u00e9lium<\/a>, \u00e9pith\u00e9lium simple et pavimenteux, reposant sur une fine couche conjonctive sous-endoth\u00e9liale ;<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span>une m\u00e9dia, entourant l&rsquo;intima, et form\u00e9e de quelques fibres musculaires lisses circulaires baign\u00e9es dans un tissu conjonctif fibreux abondant ;<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span>une adventice externe, \u00e9paisse et de nature conjonctive, fusionn\u00e9e avec le tissu conjonctif de l&rsquo;organe irrigu\u00e9.<\/p>\n<p> &nbsp; <\/p>\n<p>En relation avec la structure de leur paroi, les veines ont la capacit\u00e9 de se dilater et de contenir une importante quantit\u00e9 de sang.<\/p>\n<p> &nbsp; <\/p>\n<p>Pour en savoir plus, consulter :<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span>les pages <a href=\"\/codex\/de-lorganisation-interne\/premiers-pas-histologiques\">Premiers pas histologiques<\/a> de Codex virtualis (adresse : http:\/\/codexvirtualis.fr\/codex\/de-lorganisation-interne\/premiers-pas-histologiques)<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span>Burkitt H.G., Young B., Heath J.W., 1993 \u2013 Histologie fonctionnelle Wheater. Arnette, 408p. Paris<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span>Heusser S., Dupuy H.G., 2015 \u2013 Atlas biologie animale. Dunod, 220p. Paris<\/p>\n<p> &nbsp; <\/p>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>Une citation \u00ab\u00a0Nous voyons les choses non pas telles qu&rsquo;elles sont mais telles que nous sommes.\u00a0\u00bb E. Kant &nbsp; Une image &nbsp; Voir l&rsquo;image de plus grande taille &nbsp; Voir l&rsquo;image l\u00e9gend\u00e9e &nbsp; L&rsquo;image propos\u00e9e repr\u00e9sente une section d&rsquo;organe observ\u00e9e au microscope photonique au grossissement x400. De forme ovale ou circulaire en coupe transversale, l&rsquo;organe [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[54,14,29,23],"class_list":["post-9505","post","type-post","status-publish","format-standard","hentry","category-a-la-une","tag-circulation","tag-histologie","tag-mammifere","tag-observation"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/9505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/comments?post=9505"}],"version-history":[{"count":15,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/9505\/revisions"}],"predecessor-version":[{"id":9762,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/9505\/revisions\/9762"}],"wp:attachment":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/media?parent=9505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/categories?post=9505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/tags?post=9505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}