Li-canal e entsoeng ka likopi ke litho tsa karolo ea seaparo sa liaparo tse ka hare. Lenaneo la vestibular le ikarabella bakeng sa kutloisiso ea hau ea tekano le tekano. Bobeli ba li-cochlea (karolo ea kutlo ea hau ea kutlo) le tsamaiso ea majoe a koahetsoeng ka har'a bony labyrinth, e leng sebopeho se nang le li-bony ho boloka mekhabiso ea tsebe ea ka hare.
Ka har'a tsamaiso ea liaparo, ho na le likharaana tse 3 tsa melara le li-otoliths (lejoe la majoe) tse tsejoang e le mongobo le likhetho. Mefuta e meraro ea li-canal e tsejoa ka mokhoa oa tsona: li-anterior, posterior (e telele ka ho fetisisa), le li-canal semicircular canals.
Li-canal e nang le lik'hemik'hale li na le lithapo tse tharo tse hlophisitsoeng ka lifofane tse tharo tse tsamaeang ka ho fetisisa, 'me mokoloko o mong le o mong o kheloha ka mahlakoreng a fapaneng. Matango a lutse ka lehlakoreng le letona; e tšoanang le tsela eo mahlakoreng a mararo a lebokoseng a bokellanang ka 'ona.
Li-canalic li-canal li tlatsoa ke mokelikeli o bitsoang endolymph. Ha re sisinyeha 'mele ea rona, metsi a ka hare ho methapo ea lik'hemik'hale a tsamaea hantle. E 'ngoe le e' ngoe ea li-canal e na le ampulla (ho eketsoa ha kanallo) e kopanyang ho sesebelisoa. Tsamaiso ea mokelikeli e fumanoa ka mekhahlelo e kang ea moriri e bitsoang cilia, e qalang pontšo ea motlakase e romelletsoeng ke methapo ea kutlo, moo e sebetsanoang ke boko.
Li-canalic molecular li ikarabella bakeng sa kutloisiso ea rona ea ho potoloha. Mantsoe a Aeronautic a ka sebelisoa ho hlalosa hantle mekhoa ena:
- Sebaka se hlalosa mokhahlelo o hodimo le o theoha ha o sisinya hlooho ea hau "e"
- Leqheka le hlalosa ho sotha ha hlooho ea hau ho le letšehali kapa ho le letona
- Yaw e hlalosa ho sisinyeha ha hlooho ea hao ka letsohong le letšehali kapa ka ho le letona ha u sisinya hlooho "che"
Ho palamisoa ha motlakase ho tla u fa maikutlo a feletseng le mekhoa e tsamaeang le methapo ea hau ea liaparo le lihlooho tsa otolith. Li-canal semicircular lia kopanngoa le litho tsa otolith, leha ho le joalo, li sebetsana ka thoko. Boitsebiso bo bong bo tsoang likarolong tse peli tsa tsamaiso ea vestibular bo u lumella ho tsamaea le ho sisinya hlooho ha u ntse u shebeletse ntho e le 'ngoe. Ke tšobotsi ena e re lumellang hore re tsamaee nako eohle ntle le ho utloa liphello tsa vertigo ... e leng ha e ntse e sebetsa feela joalokaha e entsoe.
Ntlafatso
Tlhahiso ea tekano ea rona le tekano e nka nako. Ngoana ea tloaelehileng ha a na tsamaiso e feletseng ea liaparo ho fihlela a le lilemo li ka bang 6. Ho sithabela ho nts'etsopele ena ho ka etsa hore ho be thata ho lula lits'ebeletso tse sa tšehetsoeng kapa tse ling tse hlokang ho leka-lekana joaloka ho emisa kapa ho tsamaea. Ke kahoo o ka bonang hore bana ba nang le nako ea ho ba le nako ea tsoelo-pele ba ka 'na ba e-ba le mathata mesebetsing ena. Ho fokotseha tsamaisong ea liaparo ho ka boela ha etsa hore ho se sebetse ha motsoako oa majoe le mahlo a tsejoang e le reflex-ocular-reflex (VOR) e akarelletsang mathata a latelang:
- Ho se be le pono e hlakileng ha mokhatlo o potlakileng oa hlooho
- Ho bala
- Ho ngola
- Mochini o motle oa taolo
- Ho laola motlakase o moholo
Ho lekoa
Ha u hlahloba ts'ebetso ea likharaana tsa mokokotlo, ENT ea hao, setsebi sa litsebi tsa litsebi, kapa lingaka tse ling le tsona li tla hlahloba tsamaiso eohle ea vestibular le kutlo ea hau. MRI le litšoantšo tsa CT li ka etsoa ho batla lits'ebeletso tsa moralo ho kenyelletsa le kankere. Liteko tse ling tse ka sebelisetsoang ho khetholla ho se sebetse ha mesifa li akarelletsa:
- Electronystagmography kapa Videonystagmography (ENG / VNG)
- Tlhahlobo ea ho potoloha
- Testing Impulse Testing (VHIT) ea Video
- Mokhoa oa ho laola Myogenic o thibetsoeng ka marang-rang
- Computerized Dynamic Posturography (CDP)
Mathata a amanang le li-Canal tse nang le likaroloana
- CHARGE Syndrome
- Labyrinthitis le Vestibular Neuritis
- Maloetse a Meniere
- Boloetse ba Motion
- Matšoao a Phahameng a Mangata a Dehiscence ea Canal
- Vertigo
Mohloli:
Mokhatlo oa Amerika oa Puo-Puo. (nd). Kamoo Mokhoa oa Rōna oa Tekanyo o Sebetsang Kateng. http://www.asha.org/public/hearing/How-Our-Balance-System-Works/
Lee, SC, Abdel Razek, OA, Dorfman, BE, Talavera, F., Roland, PS & Meyere, AD (2013). Symmetry System ea Anatomy. http://emedicine.medscape.com/article/883956-overview
Mosby. (2012). Mosby's Dictionary ea Medicine, Nursing & Health Professions. http://www.credoreference.com (Ho hlokahala hore ho ngolisoe)
National Administration ea Aeronautics le Space. (2004). Sesebelisoa sa Batho ba Motlakase Sebakeng. http://www.nasa.gov/audience/forstudents/9-12/features/F_Human_Vestibular_System_in_Space.html
Senotlolo sa ka hare. http://hyperphysics.phy-astr.gsu.edu/hbasees/Sound/eari.html
Mokhatlo oa Vestibular Disorders Association. (nd). Matšoao a li-vestibula a fumanoa joang? http://vestibular.org/understanding-vestibular-disorder/diagnosis