Yilokho okukuvumela ukuthi uzwe futhi ulondoloze ibhalansi yakho: I-Vestibulocochlear Nerve ngamagama alula!

Namuhla sizokhuluma ngengxenye emangalisayo nebaluleke kakhulu yomzimba wethu. Wake wazibuza ukuthi uzwa kanjani umsindo, noma ukuthi ugcina kanjani ibhalansi yakho futhi uhlale uqonde ngaphandle kokuwa? Kukhona umuntu osiza ngakho konke lokhu, lowo othwala imiyalezo esuka ngaphakathi kwendlebe yethu eya ebuchosheni. Lokhu kubizwa ngokuthi i-vestibulocochlear nerve . Nakuba igama lingase libonakale lide kancane, umsebenzi eliwenzayo mkhulu kakhulu. Ake sifunde kabanzi ngalo ngendlela elula.

Iyini le nzwa ye-vestibulocochlear?

Kalula nje, i-vestibulocochlear nerve yakho iyisakhiwo esakhiwe izingxenye ezimbili. Umsebenzi wayo oyinhloko ukuthwala ulwazi lwezinzwa lusuka endlebeni yakho yangaphakathi luye ebuchosheni bakho. Izinzwa zifana nezintambo ezincane emakhaya ethu. Lezi zintambo zithwala ulwazi, njengemiyalezo kagesi, lusuka ezinzwa zomzimba ngamunye luye ebuchosheni. Ubuchopho bungasebenzisa lolo lwazi ukuze luhlele kahle imisebenzi yomzimba wethu.

I-vestibulocochlear nerve yakho ithwala ulwazi oluvela ezithweni ezimbili ezisendlebeni yakho yangaphakathi. Esinye isitho esikusiza ukuzwa imisindo , kanti esinye isitho esikusiza ukuthi ugcine "umuzwa wokulinganisela" womzimba wakho.

I-vestibulocochlear nerve ingenye yemizwa eyishumi nambili ye-cranial ekhanda lethu. Le mizwa ye-cranial isisiza ukuhogela, ukunambitha, ukuthinta, nokwenza ubuso bubonakale. I-vestibulocochlear nerve ingeyesishiyagalombili yale mizwa eyishumi nambili ye-cranial (cranial nerve VIII noma i-CN VIII) . Ihileleke kakhulu ekuzweni nasekulinganiseni. Ngezinye izikhathi ibizwa ngokuthi i-auditory vestibular nerve.

Ngakho-ke uyini umsebenzi oyinhloko walo mthambo?

Igama elithi "vestibulocochlear" ngokwalo linikeza inkomba yezingxenye ezimbili zale nerve kanye nemisebenzi yazo. Kulula kakhulu, bheka nje:

• I-Vestibular nerve: Lena yingxenye yegama elithi "vestibulo". Ithwala ulwazi oluvela ezithweni zesistimu yakho ye-vestibular luyise ebuchosheni bakho. Lezi zitho ze-vestibular yizo ezithola ulwazi mayelana nokuma kwekhanda lakho kanye nokunyakaza kwekhanda lakho. Ubuchopho bakho busebenzisa lolu lwazi ukukusiza ukuthi ugcine ibhalansi yakho. Cabanga ngakho, lolu hlelo lukusiza ukuthi ungawi lapho uhamba, ugijima, noma unikina ikhanda lakho.

• I-Cochlear nerve: Lena yingxenye yegama elithi "cochlear". Ithwala ulwazi lomsindo oluvela ku -cochlea yakho, ingxenye efana ne-snail yendlebe yakho yangaphakathi, iye ebuchosheni bakho. Ubuchopho bakho busebenzisa lolu lwazi ukukusiza ukuthi uqaphele futhi uzwe imisindo.

Lezi zinzwa ezimbili ziyahlangana ukuze zakhe inzwa eyodwa ebizwa ngokuthi `CN VIII`. Kodwa-ke, ngisho nangemva kokuhlangana, ngayinye yenza umsebenzi wayo ohlukile - okungukuthi, ukuthwala imiyalezo ehlobene nokulinganisela kanye nokuthwala imiyalezo ehlobene nokuzwa.

Ungachaza kancane ngendlela i-vestibular nerve esebenza ngayo?

Inzwa yakho ye-vestibular ithwala ulwazi oluvela ezithweni zesistimu ye-vestibular iye ebuchosheni bakho. Izitho zakho ze-vestibular ziyizitho ezimbili ze-otolith (ezibizwa nangokuthi ama-utricles nama-saccule) kanye nemisele emithathu ye-semicircular. Zonke lezi zitho ezinhlanu zigcwele uketshezi futhi ziqukethe amangqamuzana emizwa. Uma uhambisa ikhanda lakho, lolu ketshezi namaseli ayahamba.

Nansi indlela i-vestibular nerve esebenza ngayo:

1. Isignali iyaqala: Uma ushukumisa ikhanda lakho, uketshezi olungaphakathi kwezitho ze-vestibular luyanyakaza. Bese kuthi amangqamuzana ezinzwa angaphakathi kwawo anyakaze. Lokhu kunyakaza kudala isignali mayelana nendawo nokunyakaza komzimba wakho.

2. Amaseli ezinzwa (ama-neurons) athwala isignali: Lawa maseli ezinzwa athwala isignali eduze kwe-vestibular nerve. Lo mlayezo uya endaweni ebizwa ngokuthi i-vestibular nuclei complex esiqwini sobuchopho. Le complex inama-nuclei amane. Ngayinye yala ma-nuclei ebuchosheni ithumela izimpawu ezingxenyeni ezahlukene zomzimba, ukuze ukwazi ukugcina ibhalansi.

3. Ubuchopho busebenzisa ulwazi olulinganiselayo: Amanye ama-nuclei athumela izimpawu zokuzwa mayelana nendawo yomzimba ezingxenyeni zobuchopho njenge-cerebral cortex kanye ne-cerebellum. Amanye ama-nuclei athumela izimpawu zokuzwa entanyeni nasemilenzeni yakho, akusize ukulungisa ukuma kwakho. Amanye ama-nuclei athumela izimpawu zokuzwa emisipheni yamehlo akho, ezisiza amehlo akho ukuthi ahlale egxile endaweni eyodwa ngisho nalapho umzimba wakho uhamba. Lokhu kubizwa ngokuthi i-vestibulo-ocular reflex (VOR) . Cabanga nje, uma ugibele ibhasi, kungenxa yale VOR ukuthi ungabheka uphawu ngaphandle.

Manje ake sibone ukuthi i-cochlear nerve (i-hearing nerve) isebenza kanjani.

I-cochlear nerve yakho (ebizwa nangokuthi i-auditory nerve) ithwala ulwazi oluvela ku -cochlea yakho luye ebuchosheni bakho. Njengezitho zesistimu ye-vestibular, i-cochlea yakho igcwele uketshezi futhi iqukethe amangqamuzana ezinwele ezizwayo. Lapho kufika amaza omsindo, lawa manzi namaseli ayavevezela.

Nansi indlela i-cochlear nerve esebenza ngayo:

1. Isignali iqala: Lapho amaza omsindo efika ku-cochlea yakho, i-basilar membrane engaphakathi kwayoI-membrane ebizwa ngokuthi i-eardrum iyavevezela. Lokhu kuvevezela kubangela ukuthi amangqamuzana ezinwele azwelayo ku-membrane ahambe. Njengoba amangqamuzana ehamba, kukhiqizwa isignali mayelana nohlobo lomsindo. Lokhu kufaka phakathi izinto ezifana nokuvama kwamagagasi omsindo (okungukuthi, ukuthi umsindo uphakeme noma uphansi kangakanani - `iphimbo`) kanye nomsindo womsindo.

2. Isignali ithwalwa amangqamuzana ezinzwa: `Ama-Neuron` (amangqamuzana ezinzwa) athwala lesi signali eduze kwenzwa yokuzwa, kuze kube yilapho ifika endaweni ebizwa ngokuthi `ama-nuclei e-cochlear` esiqwini sobuchopho. Kunezingxenye ezintathu zala ma-nuclei e-cochlear. Ingxenye ngayinye ithola izinhlobo ezahlukene zolwazi mayelana nomsindo. Isibonelo, ezinye izingxenye zithola ulwazi mayelana nemisindo enemvamisa ephansi, njengemisindo ye-bass. Ezinye izingxenye zithola ulwazi mayelana nemisindo enemvamisa ephezulu, njengemisindo ezwakalayo.

3. Ubuchopho bucubungula ulwazi lomsindo: I-cochlear nuclei ithumela izimpawu zokuzwa mayelana nomsindo ku-auditory cortex yobuchopho bakho. Lokhu kutholakala ku -temporal lobe yobuchopho. Yilapho ulwazi lomsindo oluzwayo lucutshungulwa futhi luqondwa khona.

Akumangalisi yini? Kungakanani okungenzeka ngalo mzwelo omncane! Kufana nobuchwepheshe obukhulu ngaphakathi emizimbeni yethu.

Ngakho-ke ikuphi le nzwa ye-vestibulocochlear?

I-vestibulocochlear nerve itholakala endleleni enamathambo ebizwa ngokuthi i-Internal Auditory Canal (IAC) , lapho indlebe yakho yangaphakathi ixhumana khona nengxenye engaphansi yogebhezi lwakho.

• I-vestibular nerve iqala enqwabeni yezinzwa ebizwa ngokuthi i-vestibular ganglion (`Vestibular (Scarpa's) ganglion`) eduze kwezitho ze-vestibular. Ihlanganisa i-cochlear nerve ngaphakathi kwe-`IAC` ukuze yakhe i-`CN VIII`. Kodwa-ke, iyahlukana ne-cochlear nerve futhi uma ifika ku-vestibular nuclei complex ku-brainstem.
• I-cochlear nerve iqala enqwabeni yezinzwa ebizwa ngokuthi i-spiral ganglion eduze ne-cochlea. Lokhu kuhlanganisa i-vestibular nerve ngaphakathi kwe-IAC ukuze kwakheke i-CN VIII. Bese ihlukana ne-vestibular nerve uma ifika kuma-nuclei ayo ahambisanayo esiqwini sobuchopho.

Kalula nje, kunjengokungathi lezi zinzwa ezimbili ziqala endlebeni engaphakathi, zihamba ndawonye ibanga elifushane, bese zihlukana futhi ukuze zenze imisebenzi yazo lapho zingena ebuchosheni.

Yenziwe ngani i-vestibulocochlear nerve?

I-vestibulocochlear nerve yakhiwe ngokuphelele ngama -sensory neurons (ama-afferent neurons) . Lokhu kusho ukuthi inhloso yayo kuphela ukuthwala izimpawu ezisiza ubuchopho ukucubungula ulwazi olusekelwe ezinzwa zakho (njengokuzwa kanye nesimo somzimba). Ayithwali imiyalezo ye-motor, okungukuthi, imiyalezo evela ebuchosheni eya emisipheni.

Yiziphi izimo ezivamile ezingathinta i-vestibulocochlear nerve?

Ngeshwa, kunezimo ezithile ezingalimaza le nzwa ebalulekile. Ezinye zazo yilezi:

• Ukulimala: Ukulimala ezingxenyeni zekhanda lakho, ikakhulukazi lapho indlebe yakho yangaphakathi ikhona. Cabanga ngakho njengokushaya ikhanda lakho.
• Izimo zokuzalwa (izinkinga ezikhona lapho kuzalwa): Ngezinye izikhathi, izinkinga zingavela kusukela ekuzalweni ngoba i-CN VIII ayikhuli kahle.
• Izimila: Izimila ezingezona ezomdlavuza (ezingenobungozi), njenge -acoustic neuromas, zingavela. Nakuba lezi zingezona ezomdlavuza, zingabangela izinkinga ngokucindezela inzwa.
• Ukutheleleka: Ukutheleleka okufana ne -vestibular neuritis noma i-labyrinthitis kungalimaza le nzwa.

Ngingazi kanjani ukuthi nginenkinga nge-vestibulocochlear nerve yami? (Izimpawu)

Uma i-vestibulocochlear nerve yakho yonakele, ungase ube nezimpawu ezithinta ukuzwa kwakho kanye nekhono lakho lokugcina ibhalansi. Hlola ukuze ubone ukuthi unayo yini yalezi:

• Ukulahlekelwa ukuzwa yizinzwa: Lokhu ukulahlekelwa ukuzwa okubangelwa inkinga endlebeni engaphakathi.
• I-Tinnitus: Umsindo wokukhala, ukubhonga, noma ukubhonga ezindlebeni. Kwabanye, lokhu kungase kuzwakale njengomsindo wokushaya ikhwela noma wokubhonga.
• Ukuzungeza: Umuzwa wokujikeleza, ikhanda elibuthakathaka, noma ukulahlekelwa ibhalansi.
• I-Vertigo: Umuzwa wokuthi izinto ezikuzungezile ziyajikeleza, noma ukuthi uyajikeleza, ngisho noma umile. Lokhu kungazwakala sengathi uyehla uyenyuka esibhakabhakeni.
• I-Nystagmus: Ukunyakaza kwamehlo okusheshayo nokungalawuleki.

Uma unesinye noma ngaphezulu salezi zimpawu, kungcono ukubona udokotela ngokushesha . Kubalulekile ukuthola imbangela bese uqala ukwelashwa ngokushesha.

Odokotela bayihlola kanjani impilo yale `CN VIII`?

Kunezivivinyo eziningana odokotela abazisebenzisayo ukuhlola impilo ye-vestibulocochlear nerve yakho:

• Ukuhlolwa kokuzwa: Lokhu kuhlolwa kwenziwa ukuze kubonakale ukuthi kukhona yini ukulahlekelwa ukuzwa endlebeni yakho yangaphakathi. Izibonelo zifaka phakathi ukuhlolwa kukaRinne kanye nokuhlolwa kukaWeber . Kulokhu kuhlolwa, udokotela ubeka ifoloko lokuthungela elidlidlizayo (uhlobo lwefoloko lokuthungela) ekhanda lakho naseduze kwendlebe yakho bese ehlola ukuthi uyayizwa yini imisindo.
• Ukuhlolwa kwe-Vestibular:Lezi zivivinyo zenziwa ukuhlola impilo yesistimu yakho ye-vestibular. Izivivinyo ezifuna i-nystagmus (ukunyakaza kwamehlo okusheshayo) ziwusizo kakhulu ekutholeni izinkinga nge-cranial nerve VIII.
• Ukuhlolwa kwezithombe: Ukuskena kwe-CT (i-computed tomography scans) noma i-MRI (magnetic resonance imaging) kungenziwa ukuze kubhekwe izinkinga ngaphakathi kwendlebe yakho, njengezigaxa . I-MRI ingabonisa umonakalo emthanjeni we-vestibulocochlear, njengokuphuma kwegazi endlebeni yangaphakathi.

Ziphathwa kanjani lezi zifo zemizwa ye-vestibulocochlear?

Izindlela zokwelapha zingahluka kuye ngesimo. Nazi ezinye zezindlela zokwelapha ezisetshenziswa kakhulu:

• Imithi: Izifo eziningi ezithinta i-vestibulocochlear nerve zibangelwa amagciwane. Zivame ukuphela zodwa. Kodwa-ke, kwezinye izimo, udokotela wakho angase akunike imithi yokulwa namagciwane ukuze akusize ululame ngokushesha. Angase akunike ne-corticosteroids ukunciphisa ukuvuvukala ku-CN VIII.
• Ukuhlinzwa: Ungadinga ukuhlinzwa ukuze kususwe izimila, njenge-acoustic neuromas, ezibangela izinkinga ngokuzwa kwakho noma ibhalansi. Uma ungeyena umuntu ofanele ukuhlinzwa, udokotela wakho angasebenzisa ukwelashwa okubizwa ngokuthi i-stereotactic radiotherapy ukuze anciphise izimila.
• Ukwelashwa kokuvuselelwa kwe-Vestibular: Uma unezinkinga zesikhathi eside ngohlelo lwakho lwe-vestibular, lokhu kwelashwa kungakusiza ukuthi ufunde izivivinyo ezingathuthukisa ibhalansi yakho. Uhlobo lokwelashwa oludingayo luzoncika ohlotsheni lwesimo esibangela izinkinga zakho ze-vestibulacochlear nerve.

Ngingayigcina kanjani i-vestibulocochlear nerve yami iphilile?

Yiqiniso, asikwazi ukuvimbela zonke izimo ezingalimaza i-vestibulocochlear nerve, njengokulimala noma izimila. Kodwa-ke, kunezinto ongazenza ukuze uvikele indlebe yakho yangaphakathi.

Ngokwesibonelo:

• Vikela izindlebe zakho uma usezindaweni ezinomsindo. Umsindo omkhulu ungalimaza amangqamuzana ezinwele azwelayo endlebeni yakho yangaphakathi, okungaholela ekulahlekelweni ukuzwa.
• Bonana nodokotela lapho kuvela izimpawu zokuqala zenkinga efana nokutheleleka kwendlebe. Ukuthola ukwelashwa kusenesikhathi kungavimbela umonakalo omkhulu.
• Qaphela ukulimala ekhanda. Ukugqoka isigqoko sokuzivikela nokudlala imidlalo ephephile kubalulekile.

Ukunakekela kahle indlebe yakho yangaphakathi kuhle ekulinganiseni kwakho kanye nohlelo lokuzwa ngokujwayelekile. Kuvumela i-vestibulocochlear nerve ukuthi ithole imiyalezo ecacile nehambisanayo ebuchosheni.

Umyalezo Wokuhamba Nawo Ekhaya ovela kulesi sihloko

Ngakho-ke, i-vestibulocochlear nerve yakho ifana nebhuloho elibaluleke kakhulu elixhumanisa uhlelo lwakho lwe-vestibular (ibhalansi) kanye nohlelo lokuzwa (ukuzwa) nobuchopho bakho. Ngaphandle kwalokhu kuxhumana okubalulekile, indlebe yakho yangaphakathi ingacubungula imiyalezo mayelana nomsindo kanye nokulinganisela, kodwa leyo miyalezo ayikwazi ukuya ebuchosheni bakho ukuze iqondwe.

Ngakho-ke, ukuba ne-'CN VIII' esebenza kahle kubaluleke kakhulu ukuze uhlale uxhumene nokuhlangenwe nakho kwezinzwa ezweni elikuzungezile. Lokho kusho ukuthi, ungalalela ingoma emnandi, ukhulume nomngane, uhambe ungawi, ugijime, futhi ugxume, zonke lezi zinto zisizwa kakhulu yilo mzwelo omncane. Ngakho-ke, kungumthwalo wethu ukucabanga ngakho kancane futhi sikunakekele.

Uma uneminye imibuzo mayelana nalokhu, ungesabi ukukhuluma nodokotela. Bakulungele ukukusiza.

` I-Vestibulocochlear nerve, ukuzwa, ibhalansi, i-ear nerve, i-CN VIII, indlebe yangaphakathi, uhlelo lokuzwa