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class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Sito"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading">Visualizza wikitesto di Organo (anatomia)</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Questa voce esiste solo in questa lingua. Aggiungi la voce per altre lingue" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-0" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">Aggiungi lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> <div class="after-portlet after-portlet-lang"><span class="uls-after-portlet-link"></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespace"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Organo_(anatomia)" title="Vedi la voce [c]" accesskey="c"><span>Voce</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Discussione:Organo_(anatomia)" rel="discussion" title="Vedi le discussioni relative a questa pagina [t]" accesskey="t"><span>Discussione</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Cambia versione linguistica" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span 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Puoi anche inviare un'e-mail alla coda <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/Stewards" class="extiw" title="m:Special:MyLanguage/Stewards">stewards</a> <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/VRT" class="extiw" title="m:Special:MyLanguage/VRT">VRT</a> all'indirizzo <kbd>stewards@wikimedia.org</kbd> includendo tutti i dettagli di cui sopra.</div></div><hr /> <p>È possibile visualizzare e copiare il codice sorgente di questa pagina. </p><textarea readonly="" accesskey="," id="wpTextbox1" cols="80" rows="25" style="" class="mw-editfont-monospace" lang="it" dir="ltr" name="wpTextbox1">=== Organi pieni === Gli organi pieni presentano una struttura più complessa più difficile da descrivere. Le componenti di un organo solido sono in genere tre: ''dispositivo capsulare,'' ''stroma'' e ''parenchima:'' '''Dispositivo capsulare''' Formato dalla capsula, un connettivo di rivestimento, oppure, là dove l'organo sia rivestito dal [[peritoneo]], da una lamina sierosa; è sostanzialmente la delimitazione spaziale dell'organo. ==== Stroma ==== Lo stroma è la componente di supporto di un organo definita da setti, che vengono inviati dalla capsula all'interno dell'organo, di connettivo denso e fibroso, che si dividono in rami e lamine via via più sottili che si anastomizzano fra loro creando un reticolo tridimensionale formante l'impalcatura dell'organo. Questo reticolo forma delle regioni denominate ''lobi'' e ''lobuli''. Attraverso le strutture che costituiscono lo stroma passano anche vasi sanguigni, linfatici e nervi facendo dello stroma stesso non solo un supporto, ma anche una guida per vascolarizzazione, drenaggio e innervazione di lobi e lobuli che diventano dei territori quasi indipendenti. Il connettivo stromale è costituito da numerose fibre, tra cui anche elastiche e muscolari lisce (specialmente nella [[prostata]]). Nelle regioni più sottili arriva anche ad essere formato da soli fasci di fibre di [[collagene]] che si organizzano nello ''stroma reticolare''. Non sempre lo stroma nasce dalla totalità della superficie capsulare. In tal caso i setti nascono da una regione limitata denominata ''ilo'' dalla quale si dipartono a raggiera in corrispondenza di vasi e nervi. Dal punto di vista funzionale, lo stroma partecipa grazie al rapporto fra [[parenchima]], vasi e innervazione che permette, senza il quale l'organo non avrebbe ragione d'essere<ref name=balboni6>{{cita|Anastasi et al.|p. 6}}.</ref>. ==== Parenchima ==== {{Vedi anche|Parenchima}} Il parenchima è tutta quella parte di organo che contribuisce alla funzione dell'organo stesso e occupa gli spazi creati dallo stroma. La maggior parte delle volte è [[tessuto epiteliale]] che può disporsi sotto la forma di tubuli, acini, alveoli, follicoli in base alla funzione che deve svolgere. In genere si usa dare al parenchima il ruolo funzionale dell'organo, sebbene lo stroma partecipi grazie alla presenza di vasi in esso<ref name=balboni6 />. </textarea><div class="templatesUsed"></div><p id="mw-returnto">Torna a <a href="/wiki/Organo_(anatomia)" title="Organo (anatomia)">Organo (anatomia)</a>.</p> <noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Estratto da "<a dir="ltr" href="https://it.wikipedia.org/wiki/Organo_(anatomia)">https://it.wikipedia.org/wiki/Organo_(anatomia)</a>"</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy/it">Informativa sulla privacy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:Sala_stampa/Wikipedia">Informazioni su Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:Avvertenze_generali">Avvertenze</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Codice di condotta</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Sviluppatori</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/it.wikipedia.org">Statistiche</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Dichiarazione sui cookie</a></li> <li id="footer-places-mobileview"><a href="//it.m.wikipedia.org/w/index.php?title=Organo_(anatomia)&action=edit&section=9&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Versione mobile</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-kgm48","wgBackendResponseTime":187,"wgPageParseReport":{"limitreport":{"cputime":"0.005","walltime":"0.007","ppvisitednodes":{"value":17,"limit":1000000},"postexpandincludesize":{"value":803,"limit":2097152},"templateargumentsize":{"value":0,"limit":2097152},"expansiondepth":{"value":2,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":0,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 0.000 1 -total"]},"cachereport":{"origin":"mw-web.codfw.main-f69cdc8f6-kgm48","timestamp":"20241125051731","ttl":2592000,"transientcontent":false}}});});</script> </body> </html>