{"id":50488,"date":"2018-05-16T13:05:30","date_gmt":"2018-05-16T13:05:30","guid":{"rendered":"https:\/\/www.humanitas.net\/?post_type=wiki&#038;p=50488"},"modified":"2018-05-16T13:05:30","modified_gmt":"2018-05-16T13:05:30","slug":"nasul","status":"publish","type":"wiki","link":"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/nasul\/","title":{"rendered":"Nasul"},"content":{"rendered":"<p>Nasul este principalul organ legat de sim\u021bul mirosului, \u0219i \u00eendepline\u0219te un rol \u0219i \u00een respira\u021bie, \u00een cadrul sistemului respirator. Nasul se afl\u0103 \u00een centrul fe\u021bei, \u00een pozi\u021bia de mijloc \u0219i formeaz\u0103 prima parte a tractului respirator. Implicat \u00een respira\u021bie \u0219i \u00een sim\u021bul olfactiv, nasul este format din os \u0219i cartilagiu, care formeaz\u0103 structura exterioar\u0103, \u0219i care se iese \u00een afar\u0103 \u00een raport cu planul fe\u021bei. \u00cen interior, se afl\u0103 fronturile cavit\u0103\u021bii nazale, alc\u0103tuite din dou\u0103 canale lungi \u0219i \u0219erpuite, acoperite cu mucoas\u0103, care se deschid spre exteriorul corpului, \u00een n\u0103ri.<\/p>\n<p>&nbsp;<\/p>\n<h2><\/h2>\n<h2>Ce este nasul?<\/h2>\n<p>Structura nasului este format\u0103 din os \u0219i cartilaj: partea osoas\u0103 cuprinde osul nazal \u0219i maxila, \u00een timp ce partea cartilaginoas\u0103 este cea care determin\u0103 forma v\u00e2rfului nasului. Prezen\u021ba oaselor \u0219i a cartilajului \u00een structura extern\u0103 a nasului se distinge \u00een mod clar, prin examinarea p\u0103r\u021bii din spate a nasului. Plec\u00e2nd de la v\u00e2rf c\u0103tre baza nasului, de fapt, exist\u0103 o diferen\u021b\u0103 de duritate a \u021besutului imediat sub piele, de la mai moale la tare.<\/p>\n<p>&nbsp;<\/p>\n<p>Exist\u0103 dou\u0103 pasaje nazale: partea din fa\u021b\u0103 se deschide spre exteriorul corpului prin n\u0103ri, \u00een timp ce partea posterioar\u0103 comunic\u0103 cu nazofaringele (adic\u0103 partea superioar\u0103 a faringelui) prin dou\u0103 deschideri, cunoscute sub numele de &#8220;coanal&#8221;. Cavit\u0103\u021bile nazale sunt acoperite intern de mucoasa hipofiz\u0103 \u0219i sunt \u00eemp\u0103r\u021bite \u00een dou\u0103 por\u021biuni: o por\u021biune superioar\u0103 (numit\u0103 \u0219i olfactiv\u0103) \u0219i o por\u021biune de fund (numit\u0103 \u0219i respiratorie). Mucoasa respiratorie se caracterizeaz\u0103 prin prezen\u021ba unei re\u021bele vasculare, care permite \u00eenc\u0103lzirea aerului inhalat, precum \u0219i de prezen\u021ba mucusului \u0219i a cililor, care asigur\u0103 umidificarea \u0219i purificarea aceluia\u0219i aer inhalat. Pe de alt\u0103 parte, por\u021biunea mucoasei olfactive g\u0103zduie\u0219te celulele olfactive, bulbii olfactivi \u0219i nervii olfactivi.<\/p>\n<p>&nbsp;<\/p>\n<p>\u00cen exterior, fiecare dintre cele dou\u0103 cavit\u0103\u021bi are proeminen\u021be de os, acoperite cu mucus, sau cornetul inferior, mediu \u0219i superior. Cele dou\u0103 cavit\u0103\u021bi nazale sunt separate prin septul nazal, format din cartilaj \u0219i os. Acoperi\u0219ul celor dou\u0103 cavit\u0103\u021bi nazale const\u0103 \u00eentr-un os etmoid, care separ\u0103 cavit\u0103\u021bile nazale de creier \u0219i este unul dintre oasele care alc\u0103tuiesc orbita ochiului.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>Ce func\u021bie \u00eendepline\u0219te nasul?<\/h2>\n<p>Exist\u0103 dou\u0103 func\u021bii legate de nas: cea respiratorie \u0219i cea olfactiv\u0103. Nasul este o parte a tractului respirator superior: prin inhalare, aerul intr\u0103 prin n\u0103ri \u00een cavitatea nazal\u0103, unde este \u00eenc\u0103lzit, umidificat \u0219i purificat prin ac\u021biunea mucusului \u0219i a cililor prezen\u021bi \u00een cavit\u0103\u021bile nazale, pentru a continua pe calea sa c\u0103tre pl\u0103m\u00e2ni. \u00cen ceea ce prive\u0219te func\u021bia olfactiv\u0103, peretele superior care acoper\u0103 cele dou\u0103 cavit\u0103\u021bi nazale intercepteaz\u0103 semnale olfactive, care sunt transmise creierului prin bulbul \u0219i nervul olfactiv.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"author":11,"featured_media":0,"template":"","wiki-categories":[1691],"wiki-types":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.7.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Nasul - Humanitas.net<\/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:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/nasul\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nasul - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Nasul este principalul organ legat de sim\u021bul mirosului, \u0219i \u00eendepline\u0219te un rol \u0219i \u00een respira\u021bie, \u00een cadrul sistemului respirator. Nasul se afl\u0103 \u00een centrul fe\u021bei, \u00een pozi\u021bia de mijloc \u0219i formeaz\u0103 prima parte a tractului respirator. Implicat \u00een respira\u021bie \u0219i \u00een sim\u021bul olfactiv, nasul este format din os \u0219i cartilagiu, care formeaz\u0103 structura exterioar\u0103, \u0219i [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/nasul\/\" \/>\n<meta property=\"og:site_name\" content=\"Humanitas.net\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/HumanitasInternational\/\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:site\" content=\"@humanitasmilano\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/nasul\/\",\"url\":\"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/nasul\/\",\"name\":\"Nasul - Humanitas.net\",\"isPartOf\":{\"@id\":\"https:\/\/www.humanitas.net\/sr\/#website\"},\"datePublished\":\"2018-05-16T13:05:30+00:00\",\"dateModified\":\"2018-05-16T13:05:30+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/nasul\/#breadcrumb\"},\"inLanguage\":\"ro\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/nasul\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/nasul\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.humanitas.net\/ro\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Wikis\",\"item\":\"https:\/\/www.humanitas.net\/sr\/wiki\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Nasul\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.humanitas.net\/sr\/#website\",\"url\":\"https:\/\/www.humanitas.net\/sr\/\",\"name\":\"Humanitas.net\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.humanitas.net\/sr\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.humanitas.net\/sr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"ro\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.humanitas.net\/sr\/#organization\",\"name\":\"Humanitas\",\"url\":\"https:\/\/www.humanitas.net\/sr\/\",\"sameAs\":[\"https:\/\/www.facebook.com\/HumanitasInternational\/\",\"https:\/\/twitter.com\/humanitasmilano\"],\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ro\",\"@id\":\"https:\/\/www.humanitas.net\/sr\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.humanitas.net\/content\/uploads\/2017\/05\/logo-news-.png\",\"contentUrl\":\"https:\/\/www.humanitas.net\/content\/uploads\/2017\/05\/logo-news-.png\",\"width\":314,\"height\":61,\"caption\":\"Humanitas\"},\"image\":{\"@id\":\"https:\/\/www.humanitas.net\/sr\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Nasul - Humanitas.net","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/nasul\/","og_locale":"ro_RO","og_type":"article","og_title":"Nasul - Humanitas.net","og_description":"Nasul este principalul organ legat de sim\u021bul mirosului, \u0219i \u00eendepline\u0219te un rol \u0219i \u00een respira\u021bie, \u00een cadrul sistemului respirator. 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