{"id":11423,"date":"2018-10-22T08:00:13","date_gmt":"2018-10-22T06:00:13","guid":{"rendered":"https:\/\/codexvirtualis.fr\/codex\/?p=11423"},"modified":"2018-10-18T18:44:48","modified_gmt":"2018-10-18T16:44:48","slug":"semaine-43-2018","status":"publish","type":"post","link":"https:\/\/codexvirtualis.fr\/codex\/semaine-43-2018","title":{"rendered":"Semaine 43-2018"},"content":{"rendered":"

Une citation<\/h2>\n

\u00ab\u00a0Le plus bel ach\u00e8vement d’un individu est celui de sa libert\u00e9 int\u00e9rieure.\u00a0\u00bb<\/p>\n

S. Zweig<\/p>\n

  <\/p>\n

Une image<\/h2>\n
\"Quel
Quel est cet organe ?<\/figcaption><\/figure>\n

  <\/p>\n

Voir l’image de plus grande taille<\/a><\/p>\n

  <\/p>\n

Voir l’image l\u00e9gend\u00e9e<\/a><\/p>\n

  <\/p>\n

L’image de la semaine 43-2018 r\u00e9sulte de l’observation d’une coupe histologique \u00e0 l’objectif x20 du microscope photonique.<\/p>\n

Elle est form\u00e9e de deux r\u00e9gions distinctes :<\/p>\n

• <\/span>la partie sup\u00e9rieure est repr\u00e9sent\u00e9e par des unit\u00e9s verticales parall\u00e8les les unes aux autres et constitu\u00e9es de deux rang\u00e9es accol\u00e9es ;<\/p>\n

• <\/span>la partie inf\u00e9rieure correspond \u00e0 un vaste espace semblant vide, bord\u00e9 par un fin liser\u00e9 clair.<\/p>\n

  <\/p>\n

Une telle organisation rappelle la paroi corporelle des Ann\u00e9lides, d\u00e9crite dans l’article de la <\/a>semaine 42-2018<\/a> de Codex virtualis dans le cas du Lombric, commun\u00e9ment appel\u00e9 Ver de terre.<\/p>\n

  <\/p>\n

La r\u00e9gion sup\u00e9rieure est constitu\u00e9e d’unit\u00e9s plates et horizontales, form\u00e9es d’une bande intens\u00e9ment color\u00e9e semblant repli\u00e9e sur elle-m\u00eame. Elles sont agenc\u00e9es en deux rang\u00e9es ins\u00e9r\u00e9es de part et d’autre d’une cloison fibreuse dans laquelle de volumineux espaces au contenu homog\u00e8ne sont visibles.<\/p>\n

Il s’agit de fibres musculaires lisses coup\u00e9es transversalement, dont le contenu est repr\u00e9sent\u00e9 par deux moiti\u00e9s accol\u00e9es. L’une de leur extr\u00e9mit\u00e9s est li\u00e9e \u00e0 du tissu conjonctif<\/a> fibreux dans lequel courent des vaisseaux sanguins tandis que l’autre, semblant libre, adh\u00e8re \u00e0 un tissu conjonctif fibreux l\u00e2che peu visible. <\/p>\n

  <\/p>\n

La r\u00e9gion inf\u00e9rieure est une vaste cavit\u00e9 remplie de liquide. Elle est bord\u00e9e par une couche continue de cellules plates, reposant sur un tissu fibreux en continuit\u00e9 avec les cloisons de la tunique musculaire.
\nIl s’agit d’une cavit\u00e9 c\u0153lomique<\/a>, bord\u00e9e d’un \u00e9pith\u00e9lium<\/a> simple et pavimenteux reposant sur du tissu conjonctif fibreux. Localis\u00e9 au contact de la paroi corporelle, cet ensemble \u00e9pith\u00e9lium-tissu conjonctif fibreux est appel\u00e9 somatopleure et d\u00e9rive d’un feuillet embryonnaire m\u00e9sodermique.<\/p>\n

  <\/p>\n

Pour en savoir plus, consulter :<\/p>\n

• <\/span>les pages Premiers pas histologiques<\/a> de Codex virtualis (adresse : http:\/\/codexvirtualis.fr\/codex\/de-lorganisation-interne\/premiers-pas-histologiques)<\/p>\n

• <\/span> Burkitt H.G., Young B., Heath J.W., 1993 \u2013 Histologie fonctionnelle Wheater. Arnette, 408p. Paris<\/p>\n

• <\/span>Hanson J., 1957 – The structure of the smooth muscle fibres in the body wall of the earthworm.<\/a> The journal of biophysical and biochemical cytology, 3, 1 : 111-127 (adresse : https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC2224021\/pdf\/111.pdf)<\/p>\n

• <\/span>Heusser S., Dupuy H.G., 2015 \u2013 Atlas biologie animale. Dunod, 220p. Paris<\/p>\n

• <\/span>Leake L. D., 1975 \u2013 Comparative histology, an introduction to the microscopic structure of animals. Academic press, 738p. London, New York, San Francisco<\/p>\n

  <\/p>\n

\n","protected":false},"excerpt":{"rendered":"

Une citation \u00ab\u00a0Le plus bel ach\u00e8vement d’un individu est celui de sa libert\u00e9 int\u00e9rieure.\u00a0\u00bb S. Zweig   Une image   Voir l’image de plus grande taille   Voir l’image l\u00e9gend\u00e9e   L’image de la semaine 43-2018 r\u00e9sulte de l’observation d’une coupe histologique \u00e0 l’objectif x20 du microscope photonique. Elle est form\u00e9e de deux r\u00e9gions distinctes […]<\/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":[47,14,23,22],"class_list":["post-11423","post","type-post","status-publish","format-standard","hentry","category-a-la-une","tag-annelide","tag-histologie","tag-observation","tag-physiologie"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/11423","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=11423"}],"version-history":[{"count":8,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/11423\/revisions"}],"predecessor-version":[{"id":11481,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/11423\/revisions\/11481"}],"wp:attachment":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/media?parent=11423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/categories?post=11423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/tags?post=11423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}