Ngaba wakha wazibuza ukuba, emva kokuba sifunxa amandla ekutyeni esikutyayo, igazi elinezakhamzimba liyahlanjululwa njani ngaphambi kokuba lisasazeke emzimbeni wonke? Namhlanje siza kuthetha ngomthambo wegazi obaluleke kakhulu ofihliweyo esiswini sethu onceda kulo msebenzi. Ngumthambo we-Superior Mesenteric, okwaziwa ngokuba yi-SMV ngamafutshane. Le yinxalenye ebalulekileyo yokusebenza kakuhle kwenkqubo yethu yokugaya ukutya.
Ngamafutshane, yintoni umsebenzi we-Superior Mesenteric Vein?
Khawucinge ukuba inkqubo yemithambo yegazi esiswini sakho ifana nomthi. Le SMV ifana nesebe elikhulu kuloo mthi. Eli sebe likhulu lifumana igazi elivela kumasebe amancinci (oko kukuthi, imithambo yegazi emincinci).
Umsebenzi oyintloko wale vein kukuqokelela igazi elinokutya okuninzi kodwa elingenaoksijini kwi-organs ezikwinkqubo yethu yokugaya ukutya size silithwale siliyise esibindini.
Le nkqubo yenzeka ngenkqubo ekhethekileyo emzimbeni wethu. Siyibiza ngokuba yinkqubo yesango lesibindi. Omnye wemithambo ephambili kule nkqubo yi-SMV. Oku kuthetha ukuba izondlo ezifunxwa emathunjini ethu zithuthwa ziye esibindini ukuze zihlanjululwe ngaphambi kokuba zisasazwe emzimbeni wonke.
I-SMV iqokelela igazi ikakhulu kwezi zitho:
- Ndibonise uthando
- Amathumbu amakhulu
- Isisu
- I-Pancreas
- Isihlomelo
I-SMV iqokelela igazi kuzo zonke ezi ndawo ize ilinike umthambo omkhulu ngakumbi obizwa ngokuba yi-portal vein. Ukuba sithatha umzekelo womthi esiwukhankanyileyo ngaphambili, ukuba i-SMV lisebe elikhulu, umthambo we-portal ufana nesiqu saloo mthi. Esi siqu siqhagamshelwe ngqo kwisibindi sethu.
Emva kokuba eli gazi lifike esibindini, isibindi siyasihluza, sisicoce, size sisilungiselele iimfuno zomzimba. Emva koko, igazi lithunyelwa entliziyweni. Ukusuka entliziyweni, igazi liya emiphungeni ukuze lithathe ioksijini, lize libuyele entliziyweni ukuze lisasazwe kuwo wonke umzimba. Uyaqonda ukuba le nkqubo ibaluleke kangakanani?
Ziziphi iintlambo ezizisa igazi kwi-SMV?
Sithe i-SMV ifumana igazi kwingqokelela encinci yemithambo. Makhe sijonge nje loo mithambo kunye namalungu omzimba eqokelela igazi kuwo.
| Igama lomthambo omncinci (iTributary Vein) | Amalungu Ahluthwe Amanzi |
|---|---|
| Imithambo yeJejunal kunye neileal | I-jejunum kunye ne-ileum, iindawo zamathumbu amancinci |
| Umthambo we-Ileocolic | I-Ileum, i-cecum, kunye ne-caecum |
| Umthambo we-colic wasekunene | Ikholoni enyukayo |
| Umthambo we-colic ophakathi | Ikholoni eguqukayo |
| Umthambo wasekunene wesisu kunye ne-omental | Isisu |
| Imithambo ye-pancreaticoduodenal engaphantsi | I-Pancreas kunye ne-Duodenum |
Iphi le SMV esiswini?
Lo mthambo we-SMV ungaphakathi kwisisu sethu. Ngamafutshane, ungaphakathi kwindawo enkulu esiswini sethu engaphantsi kwesifuba nangaphezulu kwe-pelvis, apho kukho amalungu abalulekileyo.
Iqala kufutshane nembambo zethu. Ukusuka apho, le mthambo iyahamba iye phezulu ize ihlangane nomthambo we-splenic kufutshane ne-vertebra yokuqala ye-lumbar (L1) yomqolo wethu ukuze yenze umthambo we-portal okhankanywe ngaphambili.
Indlela le ndlela ihamba ngayo ikhethekile kakhulu!
Ngokwesiqhelo, umthambo kunye nomthambo emzimbeni wethu zihamba ecaleni, njengeemoto ezihamba macala omabini endleleni. I-SMV isebenza kwicala lasekunene lomthambo ohambelana nayo, umthambo we-mesenteric ongcono. Ngelixa umthambo uthwala igazi elineoksijini emathunjini, umthambo uthwala igazi elinezondlo ezisuka emathunjini ukuya esibindini.
Nangona kunjalo, ngamanye amaxesha, ngenxa yemeko eyenzeka ekuzalweni (i-malrotation) okanye into efana nethumba esiswini, ecinezela amalungu angqongileyo, lo mthambo ungadlula nakwicala lasekhohlo lomthambo.
Ziziphi iimeko zonyango ezichaphazela i-SMV?
Njengalo naliphi na elinye ilungu lomzimba, kukho iimeko ezinokuchaphazela umthambo we-SMV. Kubalulekile ukuzazi ezi meko, njengoko ezinye iimeko zinokuba yingozi kwaye zifune unyango olungxamisekileyo.
Eyona nto ibalulekileyo kukuba, ukuba ufumana iintlungu zesisu ezingachazekiyo nezinzima, ungaze uzityeshele. Yiya kugqirha ngokukhawuleza.
Kukho iimeko ezimbini eziphambili ezichaphazelayo:
1. I-SMV thrombosis
Oku kwenzeka xa igazi liqhekeka ngaphakathi kwimithambo ye-SMV. Oku kungaba yimeko embi kakhulu.
- Uphawu oluphambili: Intlungu yesisu eqatha ngequbuliso yeyona nto ixhaphakileyo.
- Ezinye iintlobo: Nangona kunjalo, kwabanye abantu, le ntlungu isenokufika ize idlule kangangeentsuku okanye iiveki. Ngamanye amaxesha, le meko isenokuba khona ngaphandle kweempawu.
Ukufumana unyango lwale meko ngokukhawuleza kunokuba luncedo kakhulu. Ngoko ke, ukuba uva iintlungu eziqatha esiswini, kufuneka uye kwiSebe lezeMpilo eziNgxamisekileyo (ETU) esibhedlele ngoko nangoko.
2. Uxinzelelo lwegazi oluphezulu lwesango
Oku kuthetha ukuba uxinzelelo lwegazi kwinkqubo yemithambo yegazi ye-portal ebesithethe ngayo ngaphambili luyanda.
- Izizathu: I-Cirrhosis yesibindi kunye nokuqhekeka kwegazi zezona zizathu ziphambili.
- Ubunzima: Oku kunokubangela iingxaki ezisongela ubomi, ezifana nokopha ngaphakathi emzimbeni.
Unyango lubandakanya ukulawula iingxaki, kwaye kwezinye iimeko, ukuhambisa igazi liye kwehlisa uxinzelelo lwegazi. Konke oku kumiselwa ngugqirha wakho.
Ukufunda ngezinto ezinzima ngomzimba kunokuvakala kunzima kancinci. Kulungile. Ukuba ugqirha wakho ukuxelela ukuba unesifo esinxulumene noku, ungoyiki. Buza ugqirha wakho rhoqo nangantoni na ongayiqondiyo. Uza kukuchazela yonke into ngokulula. Okukhona sisazi ngakumbi ngemizimba yethu, kokukhona kuya kuba lula kuthi ukwenza izigqibo ezifanelekileyo malunga nempilo yethu.
Umyalezo Wokuya Ekhaya
- I-Superior Mesenteric Vein (SMV) ngumthambo wegazi omkhulu othwala igazi elinezondlo ezininzi ukusuka emathunjini ethu nakwezinye izitho zenkqubo yokugaya ukutya ukuya esibindini.
- Le yinxalenye ebaluleke kakhulu yenkqubo yemithambo yegazi ye-portal enika igazi esibindini.
- Ihlwili legazi kule vein (SMV thrombosis) yimeko embi kakhulu. Intlungu yesisu eqatha ngequbulisoOlu luphawu olukhulu, kwaye yimeko efuna unyango olungxamisekileyo.
- I-portal hypertension kukunyuka koxinzelelo kule nkqubo yemithambo yegazi. Inokubangelwa zizifo ezifana nesifo sesibindi.
- Ukuba unentlungu yesisu engalindelekanga neqatha ngaphandle kwesizathu esicacileyo, musa ukuyityeshela kwaye ubone ugqirha ngoko nangoko okanye uye kwiSebe lezeMpilo eziNgxamisekileyo (ETU) lesibhedlele.
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