I-vagus nererve iyona ndlela ende kakhulu ye-system ye-nervous system kwaye yenye yeethambo ezibalulekileyo emzimbeni. I-vagus nerve inceda ukulawula ezininzi iinkalo ezibalulekileyo ze-physiology yabantu, kuquka intlawulo yesimo senhliziyo, uxinzelelo lwegazi, ukuxuma, ukugaya kunye nokuthetha. Ngenxa yesi sizathu, inzululwazi yezokwelapha sele ifune iindlela zokuthotyelwa komsebenzi we-vagus nererve.
Yintoni iVagus nererve?
I-vagus nerve (eyaziwa njenge-nerve ye-cranial ye-10) yindoda ende kakhulu ephuma kwingqondo iqhuma ize iqhubeke phantsi entanyeni ize isifubeni nesisu. Inikeza ukugcinwa kwintliziyo kwintliziyo, imithwalo yegazi emikhulu, i-airways, imiphunga, isisu, isisu, namathumbu.
Nangona kukho ngokwenene iimbilini zomzimba (ikhohlo kunye nekunene), oogqirha badla ngokubambisana ndawonye ngokuthi "i-vagus nerve."
I-vagus nererve iyasiza ukulawula imizimba emininzi yomqala kunye nebhokisi yezwi. Idlala indima enkulu ekulawuleni izinga lentliziyo kunye nokugcina isicatshulwa esiswini ekusebenzeni. Amagulane angama-vagus aphethe ulwazi olunzulu oluvela kumalungu angaphakathi abuyele kwingqondo.
Kutheni Kuthiwa I-Vagus Merveous?
Mhlawumbi into ebaluleke kakhulu yentsholongwane yamagciwane kukuba iyinzwa enkulu yegciwane le-parasympathetic, ihambisa iifasasmpathetic fibers kuzo zonke iinjongo eziphambili zentloko, intamo, isifuba kunye nesisu.
I-vagus nererve ijongene ne-gag reflex (kunye ne-reflex reflex xa i-canal yomlomo ishukunyiswa), iyancipha inqanaba lentliziyo, ilawula ukujuluka, ilawula umxinzelelo wegazi, ivuselela i-peristalisis yendlela yokuxhamla isisu kunye nokulawula i-tones.
Ukuvuselela ngokukhawuleza kwentsholongwane yesisu kunokuvelisa into ebizwa ngokuba yi " reflex vlexvagal ", eququzelelwe ngokukhawuleza egazini legazi kunye nokunciphisa izinga lentliziyo.
Le ngcamango ingabangela ukugula kwesisu okanye ukuphendula intlungu, ukwesaba okanye ukuphazamiseka ngokukhawuleza. Abanye abantu baxhomekeke kwi-reflex ye-vasovagal, kwaye uxinzelelo lwegazi kunye nokutshintsha kwexabiso lentliziyo kungabangela ukulahlekelwa kwengqondo - imeko ebizwa ngokuthi " vasovagal syncope ."
Ukusebenza ngokugqithiseleyo kwentsholongwane ye-vagus kubonakala nakwiimeko ezithile zonyango, ngakumbi i- dysautonomias .
Ukukhuthaza i-vagus nerve ingaba nempembelelo yonyango (ezifana nokuyeka iziqwenga ze -tachycardia (SVT) okanye i-hiccups), kwaye unokunceda oogqirha baxilonge iintlobo ezithile zeentliziyo ezibubulayo. Ukukhuthazwa kweVagal kunokufezekiswa lula ngokusebenzisa uValsalva .
I-Vagus Nerve kunye nentliziyo
I-vagus ye-vagus efanelekileyo inika i-node yesusus, kwaye ukuvuselela kwayo kunokuvelisa i- sinus bradycardia . I-nerus vagus yekhohlo inika i-AV node, kwaye ukuvuselela kwayo kunokuvelisa uhlobo lwebhloko yenhliziyo . Kukuvelisa i-heart block yexesha elide ukuba umphathi weValsalva anqume iintlobo ezininzi ze-SVT.
I-Vagus Nerve kwiNyango yamayeza okanye i-VNS Therapy
Ngenxa yokuba i-vagus nerve inezinto ezininzi ezibalulekileyo, inzululwazi yezokwelapha iye yanomdla kwiminyaka emininzi kwingcamango yokuqhelisa i-vagus nerve stimulation, okanye i-vagus nerving block, kwiyeza lonyango.
Kwiminyaka emininzi, inkqubo ye-vagotomy (ukusika i-vagus nervous) yayiyindlela ephambili yokwelapha isifo sezilonda zesilonda , kuba le ndlela yayiyindlela yokunciphisa inani le-peptic acid eveliswa yisisu. Nangona kunjalo, i-vagotomy yayinempembelelo emininzi, kwaye kunye nokufumaneka kwonyango olusebenzayo ngoku sele lusetyenziswa kakhulu.
Namhlanje, kunomdla omkhulu ekusebenziseni abaqhubi bekhompyutha (ngokukodwa, i- pacemakers eguquguqukileyo) ukuvuselela i-nerus nervous inzame yokwenza unyango lweengxaki ezahlukeneyo zonyango. Izixhobo ezinje (ezibhekiswe kwiidivayisi ezivusa iimbilini ezivuselelayo, okanye i-VNS idivayisi) zisetyenziswe ngempumelelo ekuphatheni abantu abanesifo esiqhekezayo esinokuphikisa ukuchithwa kweziyobisi.
Ixesha elithile uphathwe ngonyango lokuxinezeleka.
Kungenxa yokuba xa unomnatha yonke ibonakala njengesikhonkwane, iinkampani ezenza ii-VNS zixhobo ziphanda ukusetyenziswa kwazo kwezinye iimeko ezibandakanya uxinzelelo , i- migraines , i- tinnitus , i- fibromyalgia kunye nokulahleka kwesisindo.
Kukho okunene ukuqinisekiswa kwezicelo zeVNS. Nangona kunjalo, amandla okwenene e-VNS aya kuvela emva kokuba i-hype ishintshwe yinkcazo eqinileyo yeklinikhi.
> Imithombo:
> Henry TR. Iinkqubo zokwelapha zeVagus Nerve Stimulation. Neurology 2002; 59: S3.
> Morris GL 3, Gloss D, Buchhalter J, et al. Uhlaziyo lweSikhokelo soBungqina: UVagus Nerve Stimulation for the Treatment of Epilepsy: Ingxelo yeKomidi eliLawulayo loPhuhliso lwe-American Academy of Neurology. Neurology 2013; 81: 1453.
> Shuchman M. Ukuvumela i-Vagus-Nerve stimulator for Depression. N Engl J Med 2007; 356: 1604.