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[o]" accesskey="o" class=""><span>Logga in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Fler alternativ" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personliga verktyg" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personliga verktyg</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Användarmeny" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_sv.wikipedia.org&uselang=sv"><span>Stöd Wikipedia</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:Skapa_konto&returnto=Luftv%C3%A4g" title="Du uppmuntras att skapa ett konto och logga in, men det är inte obligatoriskt"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Skapa konto</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:Inloggning&returnto=Luftv%C3%A4g" title="Inloggning ger tillgång till fler funktioner för den som vill skriva och redigera artiklar. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Logga in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Sidor för utloggade redigerare <a href="/wiki/Hj%C3%A4lp:Introduktion" aria-label="Läs mer om redigering"><span>läs mer</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:Mina_bidrag" title="En lista över redigeringar från denna IP-adress [y]" accesskey="y"><span>Bidrag</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:Min_diskussion" title="Diskussion om redigeringar från det här IP-numret [n]" accesskey="n"><span>Diskussion</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div 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="Webbplats"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Innehåll" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Innehåll</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">dölj</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inledning</div> </a> </li> <li id="toc-Se_även" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Se_även"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Se även</span> </div> </a> <ul id="toc-Se_även-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innehåll" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Växla innehållsförteckningen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Växla innehållsförteckningen</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Luftväg</span></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="Gå till en artikel på ett annat språk. Tillgänglig på 28 språk" > <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-28" 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">28 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B3%D8%A8%D9%8A%D9%84_%D8%AA%D9%86%D9%81%D8%B3%D9%8A" title="سبيل تنفسي – arabiska" lang="ar" hreflang="ar" data-title="سبيل تنفسي" data-language-autonym="العربية" data-language-local-name="arabiska" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/T%C9%99n%C9%99ff%C3%BCs_aparat%C4%B1" title="Tənəffüs aparatı – azerbajdzjanska" lang="az" hreflang="az" data-title="Tənəffüs aparatı" data-language-autonym="Azərbaycanca" data-language-local-name="azerbajdzjanska" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/D%C3%BDchac%C3%AD_cesty" title="Dýchací cesty – tjeckiska" lang="cs" hreflang="cs" data-title="Dýchací cesty" data-language-autonym="Čeština" data-language-local-name="tjeckiska" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-se mw-list-item"><a href="https://se.wikipedia.org/wiki/Vuoi%C5%8B%C5%8Bahat" title="Vuoiŋŋahat – nordsamiska" lang="se" hreflang="se" data-title="Vuoiŋŋahat" data-language-autonym="Davvisámegiella" data-language-local-name="nordsamiska" class="interlanguage-link-target"><span>Davvisámegiella</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Hingamisteed" title="Hingamisteed – estniska" lang="et" hreflang="et" data-title="Hingamisteed" data-language-autonym="Eesti" data-language-local-name="estniska" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Respiratory_tract" title="Respiratory tract – engelska" lang="en" hreflang="en" data-title="Respiratory tract" data-language-autonym="English" data-language-local-name="engelska" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/V%C3%ADa_a%C3%A9rea_(anatom%C3%ADa)" title="Vía aérea (anatomía) – spanska" lang="es" hreflang="es" data-title="Vía aérea (anatomía)" data-language-autonym="Español" data-language-local-name="spanska" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Arnasbide" title="Arnasbide – baskiska" lang="eu" hreflang="eu" data-title="Arnasbide" data-language-autonym="Euskara" data-language-local-name="baskiska" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B1%D8%A7%D9%87_%D9%87%D9%88%D8%A7%DB%8C%DB%8C" title="راه هوایی – persiska" lang="fa" hreflang="fa" data-title="راه هوایی" data-language-autonym="فارسی" data-language-local-name="persiska" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Voies_respiratoires" title="Voies respiratoires – franska" lang="fr" hreflang="fr" data-title="Voies respiratoires" data-language-autonym="Français" data-language-local-name="franska" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B8%B0%EB%8F%84_(%EC%9D%98%ED%95%99)" title="기도 (의학) – koreanska" lang="ko" hreflang="ko" data-title="기도 (의학)" data-language-autonym="한국어" data-language-local-name="koreanska" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B6%E0%A5%8D%E0%A4%B5%E0%A4%B8%E0%A4%A8_%E0%A4%AA%E0%A4%A5" title="श्वसन पथ – hindi" lang="hi" hreflang="hi" data-title="श्वसन पथ" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Saluran_napas" title="Saluran napas – indonesiska" lang="id" hreflang="id" data-title="Saluran napas" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiska" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%89%E0%B2%B8%E0%B2%BF%E0%B2%B0%E0%B2%BE%E0%B2%9F%E0%B2%A6_%E0%B2%AE%E0%B2%82%E0%B2%A1%E0%B2%B2%E0%B2%A6_%E0%B2%85%E0%B2%82%E0%B2%97%E0%B2%B0%E0%B2%9A%E0%B2%A8%E0%B3%86" title="ಉಸಿರಾಟದ ಮಂಡಲದ ಅಂಗರಚನೆ – kannada" lang="kn" hreflang="kn" data-title="ಉಸಿರಾಟದ ಮಂಡಲದ ಅಂಗರಚನೆ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Coga_henasey%C3%AA" title="Coga henaseyê – kurdiska" lang="ku" hreflang="ku" data-title="Coga henaseyê" data-language-autonym="Kurdî" data-language-local-name="kurdiska" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Apparatus_respiratorius" title="Apparatus respiratorius – latin" lang="la" hreflang="la" data-title="Apparatus respiratorius" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Kv%C4%97pavimo_takai" title="Kvėpavimo takai – litauiska" lang="lt" hreflang="lt" data-title="Kvėpavimo takai" data-language-autonym="Lietuvių" data-language-local-name="litauiska" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Luchtwegen" title="Luchtwegen – nederländska" lang="nl" hreflang="nl" data-title="Luchtwegen" data-language-autonym="Nederlands" data-language-local-name="nederländska" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E6%B0%97%E9%81%93" title="気道 – japanska" lang="ja" hreflang="ja" data-title="気道" data-language-autonym="日本語" data-language-local-name="japanska" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Drogi_oddechowe" title="Drogi oddechowe – polska" lang="pl" hreflang="pl" data-title="Drogi oddechowe" data-language-autonym="Polski" data-language-local-name="polska" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Via_respirat%C3%B3ria" title="Via respiratória – portugisiska" lang="pt" hreflang="pt" data-title="Via respiratória" data-language-autonym="Português" data-language-local-name="portugisiska" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Respiratory_tract" title="Respiratory tract – Simple English" lang="en-simple" hreflang="en-simple" data-title="Respiratory tract" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Dihalna_pot" title="Dihalna pot – slovenska" lang="sl" hreflang="sl" data-title="Dihalna pot" data-language-autonym="Slovenščina" data-language-local-name="slovenska" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Hengitystiet" title="Hengitystiet – finska" lang="fi" hreflang="fi" data-title="Hengitystiet" data-language-autonym="Suomi" data-language-local-name="finska" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%B6%E0%B1%8D%E0%B0%B5%E0%B0%BE%E0%B0%B8_%E0%B0%AE%E0%B0%BE%E0%B0%B0%E0%B1%8D%E0%B0%97%E0%B0%82" title="శ్వాస మార్గం – telugu" lang="te" hreflang="te" data-title="శ్వాస మార్గం" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%97%E0%B8%B2%E0%B8%87%E0%B9%80%E0%B8%94%E0%B8%B4%E0%B8%99%E0%B8%AD%E0%B8%B2%E0%B8%81%E0%B8%B2%E0%B8%A8%E0%B8%AB%E0%B8%B2%E0%B8%A2%E0%B9%83%E0%B8%88" title="ทางเดินอากาศหายใจ – thailändska" lang="th" hreflang="th" data-title="ทางเดินอากาศหายใจ" data-language-autonym="ไทย" data-language-local-name="thailändska" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%90%C6%B0%E1%BB%9Dng_h%C3%B4_h%E1%BA%A5p" title="Đường hô hấp – vietnamesiska" lang="vi" hreflang="vi" data-title="Đường hô hấp" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesiska" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%91%BC%E5%90%B8%E9%81%93" title="呼吸道 – kinesiska" lang="zh" hreflang="zh" data-title="呼吸道" data-language-autonym="中文" data-language-local-name="kinesiska" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q13400765#sitelinks-wikipedia" title="Redigera interwikilänkar" class="wbc-editpage">Redigera länkar</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namnrymder"> <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/Luftv%C3%A4g" title="Visa innehållssidan [c]" accesskey="c"><span>Artikel</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Diskussion:Luftv%C3%A4g&action=edit&redlink=1" rel="discussion" class="new" title="Diskussion om innehållssidan [inte skriven än] [t]" accesskey="t"><span>Diskussion</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="Ändra språkvariant" > <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 class="vector-dropdown-label-text">svenska</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visningar"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a 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<div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Utseende"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Utseende</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">dölj</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Från Wikipedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="sv" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fil:Illu_conducting_passages.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Illu_conducting_passages.svg/250px-Illu_conducting_passages.svg.png" decoding="async" width="250" height="322" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Illu_conducting_passages.svg/375px-Illu_conducting_passages.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Illu_conducting_passages.svg/500px-Illu_conducting_passages.svg.png 2x" data-file-width="255" data-file-height="328" /></a><figcaption>Uppdelningen i övre och nedre luftvägar. <i>Upper respiratory tract</i> = övre luftvägar och <i>Lower respiratory tract</i> = nedre luftvägar.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fil:Respiratory_system_complete_sv.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Respiratory_system_complete_sv.svg/250px-Respiratory_system_complete_sv.svg.png" decoding="async" width="250" height="282" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Respiratory_system_complete_sv.svg/375px-Respiratory_system_complete_sv.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Respiratory_system_complete_sv.svg/500px-Respiratory_system_complete_sv.svg.png 2x" data-file-width="812" data-file-height="915" /></a><figcaption>Anatomisk översikt över hela andningssystemet.</figcaption></figure> <p><b>Luftvägarna</b> är de delar av <a href="/wiki/Andningssystemet" class="mw-redirect" title="Andningssystemet">andningssystemet</a> genom vilket luften flödar för att komma från den yttre miljön (luften) till <a href="/wiki/Alveol_(luftr%C3%B6rsf%C3%B6rgrening)" title="Alveol (luftrörsförgrening)">alveolerna</a> i <a href="/wiki/Lunga" title="Lunga">lungorna</a>. </p><p>Luftvägen börjar i munnen eller näsan och får tillträde till <a href="/wiki/Luftstrupe" title="Luftstrupe">luftstrupe</a> (<i>trachea</i>) via <a href="/wiki/Svalget" class="mw-redirect" title="Svalget">svalget</a> (<i>pharynx</i>). Luftstrupen förgrenar sig till den vänstra och den högra huvud<a href="/wiki/Bronk" title="Bronk">bronken</a> (vid <a href="/w/index.php?title=Carina_(anatomi)&action=edit&redlink=1" class="new" title="Carina (anatomi) [inte skriven än]">carina</a> som är belägen vid den andra thoracala kotan). Bronkerna delar in sig i stora <a href="/wiki/Bronkiol" title="Bronkiol">bronkioler</a>, en för varje <a href="/w/index.php?title=Lunglob&action=edit&redlink=1" class="new" title="Lunglob [inte skriven än]">lunglob</a>. Inom loberna delar sig bronkerna ytterligare ungefär 20 gånger och slutar i <a href="/wiki/Alveol_(luftr%C3%B6rsf%C3%B6rgrening)" title="Alveol (luftrörsförgrening)">alveolkluster</a>. </p><p>Luftvägarna delas upp i den övre luftvägarna och de nedre luftvägarna. Till de <b>övre luftvägarna</b> hör <a href="/wiki/N%C3%A4sh%C3%A5la" title="Näshåla">näshålan</a> (<i>cavum nasi</i>), munhålan (cavum oris) <a href="/wiki/Bih%C3%A5lorna" class="mw-redirect" title="Bihålorna">bihålorna</a> (<i>sinus paranasalis</i>) och <a href="/wiki/Svalg" title="Svalg">svalget</a> (<i>pharynx</i>). Till de <b>nedre luftvägarna</b> hör <a href="/wiki/Struphuvud" title="Struphuvud">struphuvud</a> (<i>larynx</i>), <a href="/wiki/Luftstrupe" title="Luftstrupe">luftstrupe</a> (<i>trachea</i>) och <a href="/wiki/Luftr%C3%B6r" class="mw-redirect" title="Luftrör">luftrören</a> (<i>bronchus</i>). </p><p>De <a href="/wiki/Epitel" title="Epitel">epitelia</a> ytorna av luftvägarna innehåller <a href="/wiki/Cilie" class="mw-redirect" title="Cilie">cilier</a>. Inhalerade partiklar fastnar på det <a href="/wiki/Slem" title="Slem">slem</a> (<i>mucus</i>) som utsöndras av <a href="/wiki/B%C3%A4garcell" title="Bägarcell">bägarceller</a> och som kontinuerligt tas bort från luftvägarna av ciliernas vågrörelser. Luftvägsepitelet producerar även en vattenlik vätska som slemmet glider på, en produktion som förhindras av sjukdomen <a href="/wiki/Cystisk_fibros" title="Cystisk fibros">cystisk fibros</a> som ger upphov till ett mer trögflytande slem. Även <a href="/wiki/Makrofag" title="Makrofag">makrofager</a> finns i luftvägrarna och skyddar epitelet mot <a href="/wiki/Bakterie" class="mw-redirect" title="Bakterie">bakterier</a> och partiklar. Makrofagerna kan vandra upp och åka ner i magsäcken där de degraderas eller fastna i lungorna och bilda <a href="/wiki/Plack" title="Plack">plack</a> av olika partiklar, till exempel vid <a href="/wiki/Silikos" title="Silikos">silikos</a> (stendammslunga). </p><p>Vissa sjukdomstillstånd med försämrad andning kräver <a href="/wiki/Intubation" title="Intubation">intubation</a> av trachea för att säkra fria luftvägar. Om intubation ej går att göra, eller är olämpligt kan alternativet vara <a href="/wiki/Tracheotomi" class="mw-redirect" title="Tracheotomi">tracheotomi</a> vilket innebär en öppning i trachea. </p> <div class="mw-heading mw-heading2"><h2 id="Se_även"><span id="Se_.C3.A4ven"></span>Se även</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Luftv%C3%A4g&veaction=edit&section=1" title="Redigera avsnitt: Se även" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Luftv%C3%A4g&action=edit&section=1" title="Redigera avsnitts källkod: Se även"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Luftv%C3%A4gsinfektion" title="Luftvägsinfektion">Luftvägsinfektion</a></li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Hämtad från ”<a dir="ltr" href="https://sv.wikipedia.org/w/index.php?title=Luftväg&oldid=48992880">https://sv.wikipedia.org/w/index.php?title=Luftväg&oldid=48992880</a>”</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Wikipedia:Kategorier" title="Wikipedia:Kategorier">Kategorier</a>: <ul><li><a href="/wiki/Kategori:Respirationssystemet" title="Kategori:Respirationssystemet">Respirationssystemet</a></li><li><a href="/wiki/Kategori:Lungor" title="Kategori:Lungor">Lungor</a></li><li><a href="/wiki/Kategori:Talorgan" title="Kategori:Talorgan">Talorgan</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Sidan redigerades senast den 11 mars 2021 kl. 12.50.</li> <li id="footer-info-copyright">Wikipedias text är tillgänglig under licensen <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/deed.sv">Creative Commons Erkännande-dela-lika 4.0 Unported</a>. 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