I-sphincter engaphezulu ye-esophageal i-valve ye-muscular etholakala engxenyeni engenhla yesigcawu, ngokuvamile esingaba ngu-8 amasentimitha ubude.
Ngokungafani ne-sphincter esezansi engezansi (LES), evula futhi ivale ngaphandle komzamo wethu oqaphelayo, i-sphincter ephezulu yokugxila ingaphansi kokulawula kwethu okuziwayo. Singakwazi ukulawula uma ivula. Isibonelo, singakwazi ukuvula i-sphincter ephezulu yokugwinya ngokugwinya ukudla noma uketshezi.
I-UES emsebenzini
Ngenkathi yokugwinya, i-sphincter ephezulu ye-esophageal ivula ukuvumela ukudla neziphuzo ukuba zidlule endaweni. Kunganciphisa futhi ukubuya kwezinto zokudla kanye noketshezi oluvela emgodleni kuya ku-pharynx.
Ngaphezu kokudla, sisebenzisa le ngxenye yesikhukhula ngenkathi nje siphefumula. Kubuye kusebenze phakathi nemisebenzi emzimbeni engathandeki, njenge-burping noma ukuphonsa, okusiza ukuxosha igesi noma izinto ezilimazayo emzimbeni.
I-cluster of muscle eyenza i-sphincter ephezulu ye-esophageal ivimbela ukudla ekuhambeni phansi kwe- trachea , noma i-windpipe. Lokhu kwaziwa njengenxanxathela futhi kubhekisela ezintweni zangaphandle emoyeni. Ukuphefumula kungaholela ekwenzeni noma ngisho ne-pneumonia uma uhambo lokudla lungena emaphashini. Lapho ukudla kwehla "ipayipi engalungile," iseluleko esihle kakhulu ukukhwehlela, okusiza ukudla kungene phansi.
Futhi eyaziwa ngokuthi: I-sphincter ephezulu ye-esophageal isifinyeziwe njenge-UES.
Kuyaziwa nangokuthi i-sphincter engaphansi kwe-inferior kusukela ekupheleni kwesigaba esiphansi se-pharynx futhi ivikela ukuvulwa kwendawo .
Lapho i-UES Imisebenzi
Uma i-sphincter engaphezulu kakhulu engasebenzi kahle, i-asidi ebuyele emuva emgqeni ivunyelwe emphinjeni.
Lokhu kungaholela ezimweni ezibuhlungu zokwelapha, ezifana nokuphuza noma ukugula kwe-reflux ye-gastroesophageal (GERD), igama elisetshenziselwa ukuchaza amacala aphindaphindiwe wokuphuza.
Kungani i-UES iyingqayizivele
I-UES idlala indima ekhethekile ekulawuleni ukuhamba kokudla kanye noketshezi oluphansi emphinjeni, kepha yona kanye ne-LES akuzona kuphela izitshalo emzimbeni. Kukhona futhi i-sphincter eyisikhombisa, iqembu le-muscle eliseduze ne-anus elilawula ukuhamba kwesitembu ngaphandle komzimba. Khona-ke, kukhona i-sphincter ka-Oddi, elawula ukuhamba kwe-bile ne-pancreatic emangcwabeni amancane.
Ngesikhathi ama-sphincters evela ezindaweni ezahlukene zomzimba, wonke asebenza ukulawula ukugeleza kwezinto ngokusebenzisa izitho futhi ukuvula nokuvala izingxenye zomzimba ezahlukene. I-Sphincters idlala indima ebalulekile ekugcineni umzimba uzwakala futhi uphilile.
Ukufaka phezulu
Ngenkathi ukufunda ngezingxenye zomzimba ezidlala indima ebalulekile ekuthuthukiseni i-acid reflux ngeke kwenzeke ukukhathazeka kwakho kudlule, kungakusiza ube yisiguli esolwazi, ukwazi ngokwanele ukuphishekela izinketho ezahlukene ukuze uthole ukwelashwa okufanele.
Ukuguquka kwesifo esingapheli noma i-GERD kungathinta kakhulu izinga lomuntu lomuntu. Uma uneziqephu eziphindaphindiwe ze-acid reflux, xhumana nodokotela wakho mayelana nendlela yokulungisa inkinga.
Ama-antacids, ukuhlinzwa noma ngisho namakhambi asekhaya kanye nezinguquko zokuphila kunganciphisa izimpawu zakho.
> Umthombo:
UCarol Ann Rinzler, uKen DeVault, MD. Ukuguquka kwenhliziyo nokucubungula ama-Dummies. Wiley Publishing, Inc., 2004.