I-Vague Nerve: iyini, i-anatomy nemisebenzi esemqoka

-Delile

• I-anatomy ye-vagus nerve
• Imisebenzi eyinhloko
• Ukuguqulwa kwe-vagus nerve

Inzwa ye-vagus, eyaziwa nangokuthi i-pneumogastric nerve, iyinzwa egijima isuka ebuchosheni iye esiswini, futhi endleleni yayo, inika amagatsha amaningi angabonakali izitho ezahlukahlukene zomlomo wesibeletho, i-thoracic kanye nesisu, ezinemisebenzi yezinzwa nezemoto, kubaluleke ekugcinweni kwemisebenzi ebalulekile, njengokushaya kwenhliziyo kanye nomthethonqubo we-arterial, ngokwesibonelo.

Lezi zinhlayiya ze-vagus, ezitholakala ohlangothini ngalunye lomzimba, zingamabhangqa ayi-10 esewonke angama-12 cranial pair axhuma ubuchopho emzimbeni. Njengoba izinzwa ze-cranial zibizwa ngokuthi izinombolo zamaRoma, inzwa ye-vagus ibizwa nangokuthi i-X pair, futhi ithathwa njengeyona mithambo emide kakhulu ye-cranial.

Isikhuthazi esithile emgudwini we-vagus, obangelwa ukukhathazeka, ukwesaba, ubuhlungu, ukushintsha kwezinga lokushisa noma ukumela nje isikhathi eside, kungadala lokho okubizwa ngokuthi yi-vasovagal syncope, lapho umuntu angahlangabezana khona nesiyezi noma aquleke, njengoba le nzwa kungadala ukwehla kwenhliziyo nomfutho wegazi. Qonda ukuthi yini i-vasovagal syncope nokuthi uyiphatha kanjani.

I-anatomy ye-vagus nerve

Amabili ama-Cranial

Umsuka we-vagus nerve

Inzwa ye-vagus iyisibindi esikhulu kunazo zonke futhi isuka ngemuva kwesibani somgogodla, isakhiwo sobuchopho esixhuma ubuchopho nentambo yomgogodla, bese ishiya ugebhezi ngembobo ebizwa nge-jugular foramen, yehle iye entanyeni nasesifubeni ize kugcina esiswini.

Ngesikhathi sokusebenza kwethambo le-vagus, libamba i-pharynx, i-larynx, inhliziyo nezinye izitho, futhi kungaleso sizathu lapho ubuchopho buqonda khona ukuthi lezi zitho zinjani futhi zilawula imisebenzi yazo eminingana.

Imisebenzi eyinhloko

Eminye yemisebenzi esemqoka ye-vagus nerve ihlanganisa:

• I-Reflexes yokukhwehlela, ukugwinya nokuhlanza;
• Ukuncipha kwezintambo zezwi ekukhiqizeni izwi;
• Ukulawulwa kokuncipha kwenhliziyo;
• Ukwehla kwenhliziyo;
• Ukunyakaza kokuphefumula kanye nokucinana kwemithambo;
• Ukudidiyela ukunyakaza kokuqina kokuguliswa kwamathumbu nokuqina kwamathumbu, kanye nokwanda kwesisu;
• Ukukhiqizwa kwezithukuthuku.

Ngaphezu kwalokho, i-vagus nerve yabelana ngeminye yemisebenzi yayo ne-glossopharyngeal nerve (pair ye-IX), ikakhulukazi esifundeni sentamo, ebhekele ukuzwa okukhazimulayo, lapho i-vagus nerve ihlobene kakhulu nomuncu ne-glossopharyngeal enambitheka ebabayo.

Ukuguqulwa kwe-vagus nerve

I-vagus nerve palsy ingadala ubunzima ekugwinyeni, ekuhoshozeleni, ebunzimeni ekukhulumeni, ekucindezelweni kwemisipha yepharynx ne-larynx, kanye nezinguquko ekucindezelekeni kwegazi nasekushayeni kwenhliziyo. Lokhu kukhubazeka kungenzeka ngenxa yokuhlukumezeka, ukulimala ekuhlinzweni, ukucindezelwa ngamathumba noma ama-syndromes athile wezinzwa.

Ngaphezu kwalokho, kunezimo ezibanga ukukhuthazeka ngokweqile kwe-vagus nerve, okudala isimo esibizwa nge-vagal syncope noma ukuquleka. Imvamisa kwenzeka kubantu abasha futhi kungenxa yokwehla kwenhliziyo nomfutho wegazi, ngenxa yokushoda komoya-mpilo ebuchosheni, obangela ukuquleka. Bona ukuthi wenzeni uma udlula.

I-Vagal syncope ingadalwa yi:

• Ukuvezwa kokushisa;
• Imizwelo enamandla, efana nentukuthelo;
• Ukuphikelela ukuma isikhathi eside;
• Izinguquko zokushisa;
• Ukugwinya ukudla okukhulu kakhulu;
• Ukuba endaweni ephakeme kakhulu;
• Yizwa indlala, ubuhlungu, noma okunye okuhlangenwe nakho okungathandeki.

Ukukhuthaza imizwa ye-vagus kungenziwa futhi ngokubhucungwa ohlangothini lwentamo. Kwesinye isikhathi i-vagal maneuver yenziwa odokotela esimweni esiphuthumayo ukulawula i-arrhythmia yenhliziyo.