Ngabe i-Vasodilation ilungile?

-Delile

• Yini ebangela i-vasodilation?
• Utshwala
• Ukuzivocavoca umzimba
• Ukuvuvukala
• Ithempelesha
• Izinto zeVasodilator ezikhiqizwa ngumzimba
• Imithi yeVasodilator
• Kuyini i-vasodilation?
• Yiziphi izimo ezibandakanya i-vasodilation?
• Izimo noma izifo ezibangela ukuvuvukala
• I-Erythromelalgia
• I-Vasodilation ne-hypotension
• Yini enye ethinta i-vasodilation?
• Ithempelesha
• Ukuphakama
• Ubudala
• Isisindo
• Izidakamizwa zeVasodilator
• Uyini umehluko phakathi kwe-vasodilation ne-vasoconstriction?
• Ukuthatha

Ukubuka konke

Impendulo emfushane, ikakhulukazi. I-Vasodilation, noma ukunwetshwa kwemithambo yegazi, kwenzeka ngokwemvelo emzimbeni wakho lapho kudingeka ukwanda kokugeleza kwegazi kuya ezicutshini emzimbeni wakho. Kuyinqubo ejwayelekile kepha futhi ingaba yingxenye yezinkinga zezempilo.

Okokuqala sizobheka izimbangela ze-vasodilation ongazibona.

Yini ebangela i-vasodilation?

Kunezimbangela eziningi ezingaba khona zokuphefumula nge-vasodilation. Ezinye zazo zifaka:

Utshwala

Omunye wemiphumela esheshayo yotshwala yi-vasodilation. Lesi ngesinye sezizathu ongazizwa ufudumele, ujuluke, noma unesikhumba esikhanyayo uma uphuzile.

Ukuzivocavoca umzimba

Njengoba uzivocavoca umzimba, amaseli akho emisipha asebenzisa amandla amaningi, okuholela ekwehleni kwezakhamzimba kanye nokwanda kwama-molecule anjenge-carbon dioxide.

Lokhu kungaholela ekuvuselweni kwe-vasodilation, njengoba imisipha oyisebenzisayo idinga izakhamzimba eziningi ne-oxygen.

Ukuvuvukala

Ukuvuvukala kungenzeka ngenxa yokulimala okuhlukahlukene, izifo, noma izimo. I-Vasodilation yenzeka ngesikhathi senqubo yokuvuvukala ukuze ivumele ukwanda kokugeleza kwegazi endaweni ethintekile.

Yilokhu okwenza ukushisa nobomvu okuhambisana nokuvuvukala.

Ithempelesha

Unama-receptors emzimbeni wakho abizwa ngokuthi ama-thermoreceptors, athola izinguquko ekushiseni kwemvelo yakho.

Lapho ama-thermoreceptors wakho ethatha inani eliphakeme lemfudumalo endaweni yakho maqondana nokubanda, i-vasodilation izokwenzeka.

Lokhu kuqondisa ukugeleza okuphezulu kwegazi kuya esikhunjeni sakho ngomzamo wokuqeda imfudumalo eyeqile oyizwayo.

Izinto zeVasodilator ezikhiqizwa ngumzimba

Kunezinto eziningi ezikhiqizwa ngumzimba wakho ezingaholela ekuphefumuleni.

Ezinye izibonelo zifaka izinto ezifana ne-nitric oxide ne-carbon dioxide kanye namahomoni afana ne-acetylcholine, i-prostaglandin, ne-histamine.

Imithi yeVasodilator

Izidakamizwa ezibizwa ngokuthi ama-vasodilator zingadala ukuthi imithambo yegazi yakho ikhule.

Bangasebenza ngqo kwimisipha ebushelelezi yemithambo yegazi noma kuhlelo lwakho lokuzimela oluzimele, okuyingxenye yohlelo lwakho lwezinzwa olulawula i-vasodilation ne-vasoconstriction.

Kuyini i-vasodilation?

I-Vasodilation ukunwetshwa kwemithambo yegazi yakho. Kwenzeka lapho izicubu ezibushelelezi ezitholakala ezindongeni zemithambo yegazi noma emithanjeni emikhulu ziphumule, okuvumela imithambo yegazi ukuthi ivuleke ngokwengeziwe.

Lokhu kuholela ekwandeni kokugeleza kwegazi ngemithambo yakho yegazi kanye nokwehla kwengcindezi yegazi.

Yiziphi izimo ezibandakanya i-vasodilation?

Kunezimo ezahlukahlukene ezingaholela ekuvuselweni kwe-vasodilation. Ngezansi, sizohlola ezinye izibonelo bese sixoxa ngokuthi kungani i-vasodilation iyinto ebalulekile.

Izimo noma izifo ezibangela ukuvuvukala

I-Vasodilation yinto ebalulekile yokuvuvukala. Kwandisa ukugeleza kwegazi kuya endaweni futhi kukhuphula ukungena, noma ukuvuza, kwezindonga zemithambo yegazi. Zombili lezi zinto zisiza amaseli omzimba ukuthi afinyelele ngempumelelo endaweni ethintekile.

Ukuvuvukala kuyinqubo ehloselwe ukusiza ukususa imizimba yethu yabahlaseli bakwamanye amazwe, kepha kwezinye izimo kungalimaza, njengokuphendula okunzima kokungezwani komzimba nezifo ezingapheli zokuvuvukala.

I-Vasodilation ehlobene nokuvuvukala ingabonakala kulezi zimo ezilandelayo:

• Ukulimala, njengokuthola i-splinter noma ukusika noma ukusonta iqakala
• Izifo, njengalapho ikhala lakho liba bomvu futhi ligcwale lapho kubanda noma lapho isilonda esinegciwane siba bomvu futhi sishise lapho sithintwa
• Ukusabela okweqile, okwenzeka lapho amasosha akho omzimba ephendula into engeyona ingozi yangaphandle. I-Histamine ibamba iqhaza elikhulu ekukhuthazeni i-vasodilation kuleli cala.
• Izifo ezingalapheki noma izimo, ikakhulukazi lezo amasosha omzimba ahlasela kuzo amaseli omzimba aphilile. Ezinye izibonelo zifaka phakathi isifo samathambo, i-lupus, nesifo samathumbu esivuthayo (IBS). Abantu abanezi zimo bangabonisa izingqinamba ngokusebenza kwegazi, kufaka phakathi ukungasebenzi kahle kwe-vasodilation. Lokhu kungaholela ezinkingeni zenhliziyo nemithambo yegazi.

I-Erythromelalgia

I-Erythromelalgia yisimo esingajwayelekile esingathinta izandla nezinyawo zakho. Izimpawu zingabandakanya ubuhlungu obukhulu bokushisa, ukufudumala, nokubomvu endaweni ethintekile.

Kubantu abaningi abanalesi simo, izimpawu azishintshi kepha kunalokho zenzeka ngezikhathi ezithile.

Yize kungaziwa ukuthi yini ebangela i-erythromelalgia, obunye ubufakazi bukhombisa ukuthi izimpawu zingabangelwa ukungajwayelekile kwe-vasodilation ne-vasoconstriction.

I-Vasodilation ne-hypotension

Inqubo ye-vasodilation ngokwemvelo iholela ekwehleni komfutho wegazi. Lokhu kungenxa yokwanda kwemithambo yegazi, okuholela ekugelezeni kwegazi okukhulu futhi ngenxa yalokho kunciphe ukucindezela ezindongeni zemithambo yegazi.

Umfutho wegazi ophansi ngokungajwayelekile ubizwa ngokuthi yi-hypotension. I-Hypotension ingadala izinkinga kwabanye abantu, kepha kwabanye ingaholela ezimpawu ezifana nesiyezi, ukuquleka, kanye nesicanucanu. Izinga eliphakeme le-hypotension lingasongela impilo.

Izimo eziningi zingadala i-hypotension, kufaka phakathi ukusabela okweqile komzimba (i-anaphylaxis), ukulahleka kwegazi, ukomisa amanzi emzimbeni kanye nokutheleleka okunzima. Imithi ethile, ikakhulukazi leyo esetshenziselwa ukwelapha umfutho wegazi ophakeme nayo ingaholela ku-hypotension.

Yini enye ethinta i-vasodilation?

Izici ezahlukahlukene zemvelo nezomuntu siqu nazo zingaba nomthelela ku-vasodilation, kufaka phakathi:

Ithempelesha

I-Vasodilation yenzeka lapho uvezwa amazinga okushisa afudumele. Kuyasiza ukuhambisa ukugeleza okuphezulu kwegazi esikhunjeni sakho ukuze ugcine izinga lokushisa lomzimba wakho lisezingeni elijwayelekile.

Ukuvezwa isikhathi eside emazingeni okushisa aphezulu kungathinta amandla omzimba wakho wokulawula ukushisa kwawo, okuholele ezimeni ezinjengokukhathala kokushisa nokushiswa ukushisa.

Ukuphakama

Njengoba uthuthela ezindaweni eziphakeme, kunomoya-mpilo omncane otholakala emoyeni ophefumulayo.

Umzimba wakho ekuqaleni uphendula kulokhu kushoda komoya-mpilo ngokusebenzisa i-vasodilation, uvumela ukugeleza kwegazi okwengeziwe ezicutshini zakho. Kodwa-ke, lokhu kulandelwa yi-vasoconstriction.

I-vasoconstriction ehambisana nayo ingaholela ekwandeni komfutho wegazi kanye nokwanda koketshezi kwezicubu ezifana namaphaphu. Lesi simo sibizwa ngokuthi yi-high-altitude pulmonary edema futhi singasongela impilo. Isimo singalashwa ngemithi ye-vasodilator noma i-oxygen eyengeziwe.

Ubudala

Ukukhula kweminyaka kuhlotshaniswa nokwehla kokusebenza kwemithambo yegazi, kufaka phakathi i-vasodilation. Lokhu kungaba nomthelela engozini yemicimbi yenhliziyo nemithambo yegazi efana nesifo senhliziyo nesifo sohlangothi.

Isisindo

Abantu abakhuluphele babonakele ukuthi banokungasebenzi kahle kwe-vasodilation.

Kumuntu okhuluphele ngokweqile, imithambo yegazi iyamelana kakhulu ne-vasodilation, engaholela ezinkingeni zenhliziyo. Ukwehla kwesisindo kungasiza ekunciphiseni ukungasebenzi kahle kwe-vasodilation.

Izidakamizwa zeVasodilator

Izidakamizwa zeVasodilator yimithi engadala i-vasodilation. Abaningi bangenza ngokuqondile emisipheni ebushelelezi etholakala ezindongeni zemithambo yegazi. Abanye bangenza ingxenye yohlelo lwezinzwa olulawula i-vasodilation ne-vasoconstriction.

Ngenxa yokuthi i-vasodilation yehlisa umfutho wegazi, odokotela bavame ukunquma ama-vasodilator ezimweni ezifana nomfutho wegazi ophakeme noma ukwehluleka kwenhliziyo. Amanye ama-vasodilator yimithi eqinile futhi ingadala imiphumela emibi njengokushaya kwenhliziyo okusheshayo, ukugcinwa koketshezi, nokuhlanza.

I-Viagra iyisibonelo somuthi owenza i-vasodilation futhi ayisetshenziswanga ngokuyinhloko ekwelapheni umfutho wegazi ophezulu. Kuyasiza ekwelapheni ukungasebenzi kahle kwe-erectile ngokuthinta izindlela zebhayoloji eziholela ekuvuseleleni imisipha ebushelelezi.

Lokhu kuholela ekwandeni kokugeleza kwegazi ukuya endondeni. Ukusetshenziswa kwesibili kweViagra ukwelapha ezinye izinhlobo zomfutho wegazi ophezulu.

Uyini umehluko phakathi kwe-vasodilation ne-vasoconstriction?

IVasoconstriction iphikisana ne-vasodilation. Ngenkathi i-vasodilation ikhulisa imithambo yegazi, i-vasoconstriction ukunciphisa imithambo yegazi. Kungenxa yokuncipha kwemisipha emithanjeni yegazi.

Lapho i-vasoconstriction ivela, ukugeleza kwegazi kuya kwezinye izicubu zomzimba wakho kuyavinjelwa. Umfutho wegazi lakho nawo uyakhuphuka.

Ukuthatha

I-Vasodilation ivela ngokwemvelo emzimbeni wakho ekuphenduleni izimbangela ezinjengamazinga aphansi womoya-mpilo, ukwehla kwezakhamzimba ezitholakalayo, nokwanda kwezinga lokushisa.

Kubangela ukunwetshwa kwemithambo yegazi lakho, okuthi nalo likhuphule ukugeleza kwegazi futhi lehlise umfutho wegazi.

Yize i-vasodilation iyinqubo engokwemvelo, kunezimo lapho zingaba yingozi khona, njenge-hypotension enamandla, ukusabela okweqile, nezimpendulo ezinamandla zokuvuvukala.

Ngokwengeziwe, izinto ezinjengobudala nesisindo zingathinta kabi i-vasodilation.

Yize kunjalo, ukunciphisa i-vasodilation kungaba yithuluzi elibalulekile lokwelapha izimo ezifana nomfutho wegazi ophakeme kanye nokugula okuhlobene nokuphakama okuphezulu.