Gabar ji tana: Anatomy da kuma aiki daga cikin manyan sassan

A gabobin da ji damar gane iri-iri na sauti na waje duniya, don gane da yanayi da wuri. Tare da ikon ji wani mutum samu ikon yin magana. Gabar ji tana - wani hadadden, finely saurare tsarin na jerin-da alaka da juna uku sassan.

external kunne

Da farko sashi wakiltar auricle - hadaddun siffar cartilaginous farantin daga bangarorin biyu an rufe shi da fata da kuma na waje auditory meatus.

Babban aiki na pinna - tallafi na Ft Irfan vibrations na iska. Daga ramuka a cikin auricle fara waje auditory canal - a tube tsawon na 27 - 35 mm, da saitin zurfi a cikin boko kashi na ragargaje. A fata rufi da kunne canal, suna sulfur gland shine yake mugunya wanda ya hana a shigar azzakari cikin farji daga kamuwa da cuta a cikin sashen ji. Eardrum - wani bakin ciki amma da karfi membrane - raba cikin matsanancin kunne daga cikin biyu sashen na sashen ji, tsakiyar kunne.

tsakiyar kunne

A sako na boko kashi ne tympanic rami, wanda ya ƙunshi babban ɓangare na tsakiyar kunne. Auditory (Eustachian) tube - wata mahada tsakanin tsakiyar kunne da kuma nasopharynx. Lokacin da hadiya ƙungiyoyi Eustachian tube yana buɗewa kuma damar iska ya ratsa cikin tsakiyar kunne, cewa ma'aunan da matsa lamba a cikin tympanic rami da waje auditory canal.

A tsakiyar kunne ana movably juna ta dada ji kashi - wani hadadden inji for watsa Ft Irfan tãguwar ruwa na fita daga waje auditory canal to ji sel can cikin kunne. Na farko da dutse - guduma, dogon karshen a haɗe zuwa eardrum. Na biyu - wani maƙera, an haɗa da uku kankanin kashi, likkafa. Stapes ga m taga beyar, daga wanda can cikin kunne fara. Kasusuwa, wanda ya hada da sashin jiki na ji, su ne kadan. Alal misali, masu nauyi daga stapes ne kawai 2.5 MG.

A can cikin kunne

The uku ji sashin jiki sashen wakilta shirayin (kashi dada kyamara), da semicircular canals da kuma ilimi na musamman - kashi garu tube a swirling karkace.

Wannan bangare na Ft Irfan analyzer, kamã da katantanwa, da ake kira - da auditory cochlea.

Gabar ji tana da muhimmanci ilimin Halittar Jiki Tsarin, kyale su kula daidaituwa da kuma kimanta da matsayi na jiki a cikin sarari. Wannan Hauwa'u da semicircular canals cika da ruwa, kuma liyi tare da ciki sosai m Kwayoyin. Lokacin da wani mutum ya musanya matsayi na jiki, akwai wani motsi na ruwa a cikin tashoshi. Rabe gyarawa ruwa hijirar da kuma aika wata sigina game da taron a cikin kwakwalwa. Saboda haka ji da jiki balance damar da kwakwalwa su koyi game da jiki ƙungiyoyi.

Matattarar, located a cikin cochlea, kunshi game da 25 tysyach mafi kyau zaruruwa na daban-daban tsawo, kowanne daga abin da amsa ga wani takamaiman mita sauti, kuma ya jũya a kan ƙulli daga cikin auditory jijiya. Jitters farko canjawa wuri a cikin medulla oblongata, sa'an nan kai da cerebral bawo. A auditory cibiyoyin na kwakwalwa samuwar kasashe suna bincikar kuma systematized, tare da sakamakon cewa mun ji sauti cika duniya.