Masifunde ngakumbi ngalo mthambo ubalulekileyo (iSuperior Mesenteric Vein) ongaphakathi esiswini sakho.

Molo! Unjani? Namhlanje siza kuthetha ngomthambo wegazi emzimbeni wethu, ingakumbi ngaphakathi esiswini sethu, esingathethi kakhulu ngawo kubomi bethu bemihla ngemihla, kodwa udlala indima ebaluleke kakhulu. Oku kubizwa ngokuba yi "Superior Mesenteric Vein". Ungakhathazeki ukuba igama livakala ngathi lelesayensi. Ndiza kukuchazela ngokulula, ngolwimi lwethu. Njengokuba ubuya kuchazela umhlobo.

Yintoni le vein iphambili ye-mesenteric (SMV)? Yintoni kanye kanye eyenzayo?

Ngamafutshane, umthambo wakho we-mesenteric ongcono kakhulu ngumthambo wegazi omkhulu othatha igazi emathunjini akho kwaye uncede ekulithwaleni uye esibindini sakho. Cinga ngawo njengendlela enkulu emzimbeni wakho. Kulapho izondlo esizifunxayo ekutyeni esikutyayo nesikuselayo ziya esibindini.

Lo mthambo yinxalenye ebaluleke kakhulu ye-"Hepatic Portal System" emzimbeni wethu, okanye inkqubo yemithambo ethwala igazi ukuya esibindini. Kuba, lo "Mthambo we-Mesenteric oPhezulu" uqokelela igazi elivela kwezinye imithambo emincinci. Kufana nemijelo emincinci ejoyina umlambo omkhulu. Ke ngoko, igazi elininzi elivela kwizitho ezisesiswini sakho liya esibindini ngalo mthambo. Oku kunceda ekuhambeni kwegazi emzimbeni wethu wonke, oko kukuthi, ukujikeleza kwegazi.

Ngoku usenokuba uzibuza ukuba, kwenzeka ntoni xa igazi liqhekeka kule vein, okanye ukuba kukho naluphi na uthintelo lokuhamba kwegazi? Ewe, ukuba oko kuyenzeka, kunokubakho iingxaki ezinkulu . Yiyo loo nto kubalulekile ukuqaphela oku (SMV) nokukugcina kusempilweni.

Ngoko ke, ngawaphi amasebe anika igazi kwi-SMV? Oko kukuthi, i-SMV iqokelela igazi kumalungu aphi?

Cinga ngale `(Superior Mesenteric Vein)` njengesebe elikhulu lomthi. Elo sebe linamasebe amancinci, abizwa ngokuba yi-branch veins, anamathele kulo. Le mithambo mincinci iqokelela igazi kwizitho ezingqongileyo ize ilizise kwi-`(SMV)` enkulu. Ngoko ke, le `(SMV)`, kunye nemithambo emincinci enamathele kuyo, iqokelela igazi kwizitho ezilandelayo:

• Amathumbu akho amancinci (indawo ephambili apho ukutya esikutyayo kugaywa khona kwaye izondlo zifunxwa emzimbeni)
• Amathumbu akho amakhulu (apho amanzi afunxwa khona kwintsalela yokutya okucoliweyo kwaye kwakheka indle)
• Isisu sakho (apho inkqubo yokugaya iqala khona)
• I-pancreas yakho (yile nto ivelisa iihomoni ezifana ne-insulin kunye nee-enzymes ezinceda ekugayeni ukutya)
• I-appendix yakho (le yinxalenye yamathumbu amancinci)

Igazi eliqokelelweyo kuzo zonke ezi zitho lithwalwa ngqo lisuka kwi-Superior Mesenteric Vein ukuya komnye umthambo omkhulu obizwa ngokuba yi-Portal Vein , umthambo oyintloko wesibindi sakho .

Khumbula umzekelo wesebe endithethe ngalo ngaphambili. Ukuba i-SMV lisebe lomthi, umthambo oyintloko wesibindi, i-Portal Vein, ufana nesiqu saloo mthi. Esi siqu, i-Portal Vein, singena esibindini ngendawo ebizwa ngokuba yiLiver Hilum. Emva koko, igazi elikwi-Portal Vein liya esibindini, apho isibindi sihluza igazi, silicoce, kwaye sisebenze izondlo ezifunekayo . Emva koko, igazi lithunyelwa kwimithambo ekhokelela entliziyweni. Ukusuka apho, liya entliziyweni, emiphungeni, kwaye lisasazwe kuwo wonke umzimba. Asiyondlela imangalisayo le?

Iphi kanye kanye le vein ye-mesenteric (SMV) ephezulu emizimbeni yethu?

I-"Superior Mesenteric Vein" yakho ikwindawo engaphakathi kwesisu sakho. Isisu sisithuba esikhulu esingaphantsi kwesifuba sakho nangaphezulu kweempundu zakho. Izitho ezibalulekileyo kunye nezicubu esiswini sethu zikwindawo engaphakathi kwesisu.

Le `(SMV)` iqala kufutshane nesisu sakho, ngaphakathi kwe-`(mesentery)` membrane edibanisa amathumbu akho amancinci. (Le `(mesentery)` yi-membrane enceda ukugcina amalungu akho esiswini kwindawo enye ngaphandle kokujikeleza.) Ukusuka apho, le `(SMV)` iyanda iye phezulu, ukuya kwi-`(L1 Vertebra)` vertebra (ithambo elisemgogodleni wakho) phezulu komqolo wakho. Apho, le vein idibana ne - `(splenic vein)` ukwenza i-`(portal vein)` ekhankanyiweyo ngaphambili.

Ingaba lunjani uhambo lwe-SMV? Ingaba luhamba lodwa?

Umthambo wakho we-Superior Mesenteric Vein ubaleka ngasekunene kwe -Superior Mesenteric Artery, ehamba ngaxeshanye nayo. Lo mthambo uthwala igazi elicocekileyo nelinomoya-mpilo omninzi ukuya emathunjini akho. Okwangoku, i-SMV ithwala igazi elingenawo umoya-mpilo (kodwa elinezondlo) elivela emathunjini akho ukuya esibindini sakho. Uninzi lwemithambo-luvo kunye nemithambo-luvo emizimbeni yethu isebenza ecaleni ngale ndlela. Cinga ngayo njengeemoto ezihamba kwicala elinye lendlela, ngelixa iimoto ezikwelinye icala lendlela zihamba kwelinye icala.

Nangona kunjalo, ngamanye amaxesha, kunqabile, i-SMV yomntu inokuya ngasekhohlo kwe-Superior Mesenteric Artery. Oku kudla ngokukwenzeka kwiintsana ezizelwe zinokukhubazeka kwamathumbu. Okanye, kusenokwenzeka xa ithumba lenzeka ngaphakathi esiswini lize licinezele imithambo ejikelezileyo.

Yenziwe ngantoni i-superior mesenteric vein (SMV)?

Njengeminye imithambo emzimbeni wethu, iindonga ze-SMV yakho zenziwe ngamaleya amathathu aphambili:

• Umaleko ongaphandle `(Tunica Adventitia)`: Yile nto inika umthambo imo yawo. Isebenza njengesigqubuthelo sokukhusela umthambo.
• Umaleko ophakathi (iTunica Media): Oku kuqulathe iiseli zemisipha ezigudileyo. Ezi seli zivumela imithambo ukuba ivuleke kwaye inciphe njengoko igazi lihamba, ngokungathi zilungelelanisa uxinzelelo lwegazi.
• Umaleko ongaphakathiI-Tunica Intima: Le ine-layer encinci eyenziwe ziiseli ezikhethekileyo ezibizwa ngokuba zii-Endothelial Cells. Yiyo le nto inceda igazi ukuba lihambe kakuhle kwaye lingabi nangxaki.

Cinga ngayo njengombhobho wamanzi. Loo mbhobho uneqokobhe ngaphandle, inxalenye eqinileyo embindini, kunye nomaleko ogudileyo ngaphakathi ukuze amanzi adlule ngokulula, akunjalo? Yile ndlela le mithambo injalo.

Zeziphi iimeko zonyango ezinokuchaphazela i-SMV? Ingaba kubalulekile ukuzazi ezi meko?

Ewe, ngokuqinisekileyo kubalulekile. Kuba, ezinye zeemeko ezichaphazela `(SMV)` zinokuba yingozi kancinci. Masiqaphele ikakhulu ngezi meko zimbini:

1. I-SMV Thrombosis : Oku kwenzeka xa igazi liqhekeka ngaphakathi kwimithambo yakho ye-mesenteric ephezulu. Ukuba kwenzeka ngequbuliso, ebizwa ngokuba yi-acute thrombosis, uphawu oluphambili yintlungu yesisu ekhawulezileyo neqatha . Nangona kunjalo, kwabanye abantu, inokukhula kangangeentsuku okanye iiveki. Kubantu abanjalo, intlungu isenokufika iphele, okanye basenokungabi nazimpawu kwaphela. Okukhona ufumana unyango lwale meko ngokukhawuleza, kokukhona amathuba akho okuphila eba maninzi. Ke ngoko, ukuba ufumana intlungu yesisu ekhawulezileyo neqatha, ngokuqinisekileyo kufuneka ufune ingcebiso kagqirha.

2. I-Portal Hypertension : Oku kukunyuka koxinzelelo lwegazi kwinkqubo yemithambo yegazi ethwala igazi liye esibindini. Izizathu eziphambili zoku zinokuba zizifo ezifana ne-cirrhosis yesibindi kunye nokuqhekeka kwegazi. I-Portal Hypertension inokubangela iingxaki ezisongela ubomi, ezifana nokopha ngaphakathi. Unyango lwale meko lujolise ekulawuleni iingxaki, kwaye kwezinye iimeko, ngokujika ukuhamba kwegazi ukuze kuncitshiswe uxinzelelo kwimithambo yegazi.

Nangona ukufunda ngesakhiwo somzimba wethu, okanye `(Anatomy)`, kuyinto enomdla kakhulu, ngamanye amaxesha unokufumana kunzima ukuqonda la magama kunye neengcinga. Yinto eqhelekileyo leyo. Musa ukuziva ngathi kufuneka ufunde yonke into ngaxeshanye. Ingakumbi ukuba ujonga ezi zinto ngenxa yemeko yempilo, khumbula ukuba ugqirha wakho ukhona ukukunceda. Buza kwakhona ukuba awuqondi nto, kwaye ubhale phantsi amanqaku abalulekileyo. Okukhona usazi ngakumbi ngento eyenzekayo emzimbeni wakho, kokukhona kuya kuba lula kuwe ukuthetha nogqirha wakho ngemeko yakho kunye nento onokuyilindela kwixesha elizayo.

Ngoko ke, zeziphi izinto ezibalulekileyo ekufuneka sizikhumbule kwizinto esithethe ngazo namhlanje?

Kulungile, ndiyathemba ukuba ngoku uyiqonda kakuhle i-"Superior Mesenteric Vein" esithethe ngayo. Nazi ezinye izinto ekufuneka uzikhumbule ngokufutshane:

• I-SMV ngumthambo obaluleke kakhulu: ithwala igazi elinezakha-mzimba ezininzi ukusuka emathunjini ukuya esibindini. Ibalulekile ekusebenzeni kakuhle kwenkqubo yethu yokugaya ukutya nesibindi.
• Iingxaki nge-SMV zinokuba nkulu:Iingxaki ezinkulu zinokwenzeka ngenxa yeemeko ezifana nokuqhekeka kwegazi (i-SMV Thrombosis) okanye uxinzelelo oluphezulu kwinkqubo yemithambo yegazi olukhokelela kwisibindi (i-Portal Hypertension).
• Lumka ngeempawu: Ukuba unentlungu yesisu engalindelekanga okanye isisu esibuhlungu esingapheliyo, ngokuqinisekileyo kufuneka ufune ingcebiso kagqirha. Unyango olukhawulezileyo lunokuvelisa iziphumo ezilungileyo kakhulu.
• Thetha nogqirha wakho: Ukuba unemibuzo okanye izinto ezikuxhalabisayo, ungoyiki ukubuza ugqirha wakho. Bakho ukuze bakuncede.

Ndiyathemba ukuba olu lwazi luluncedo kuwe. Hlala usempilweni!

Umthambo we - mesenteric ophezulu, i-SMV, imithambo yegazi yamathumbu, ukunikezelwa kwegazi kwisibindi, inkqubo yesango, i-SMV thrombosis, uxinzelelo lwegazi lwesango