Ukuqonda umsebenzi weJejunum
Ijjunum yindawo ephakathi kwesisu esincinci, ukuxhuma i- duodenum kunye ne-ileum. Amathumbu amancinci aphakathi kwama-22 kunye nama-25 ubude ubude, kwaye aphinda amaxesha amaninzi; i jejunum ibingama-8 ubude kumda omdala.
Umsebenzi weJejunum
Ijejunamu, kunye nezinye iindawo zentlungu encinci, inoxanduva lokuxhamla izondlo ezivela ekutya okugayiweyo ukuya kwigazi.
Ijuniyam iyakwazi ukufumana ezi zondlo ngenxa yokuba ihlanganiswe nemibonakalo yeminwe ebizwa ngokuba yi-villi. I-villi ithabatha izondlo ngendlela yemigodi, i-electrolytes, ne-carbohydrate, iiprotheni kunye namafutha aphethwe ngendlela yokutya. Izondlo zifakwe kwigazi apho zingasetyenziselwa amandla kuwo wonke umzimba.
Ijjunum, kunye nayo yonke intlungu encinci, yenza kube lula ukutshintsha ukutya kumandla, ukunika umzimba umzimba amandla. Ngaphandle kwamathumbu amancinci, ukutya kwakuza kudlula emzimbeni kodwa asizukufumana izondlo, kwaye ngokukhawuleza siza kulamba.
Malunga neJejunum
Ijjunum iqala kwi-muscular suspension ye duodenum. Esi sihlunu sibonisa ukuphela kwesigaba sokuqala samathumbu amancinci kunye nokuqala kweJejunum. Akukho nqondiso ecacileyo apho i-duodenum iphelela kunye nenxalenye yokugqibela yamathumbu amancinci, i-ileum iqala.
Njengawo onke amathumbu amancinci, ijejunum ihlanganiswe ngumlenze omncinci obizwa ngokuba yi-mesentery. Ukongezelela ekusekeleni iJejunum, i-mesentery iyanqanda iJejunum, ikunceda ukugcina imfudumala. Isisipha kwi-jejunum sinceda ukuhambisa ukutya ngokusebenzisa inkqubo yokutya.
Iingxaki zeJejunum
Njengengxenye yesisu esincinci, ijejunum iyaxhomekeka kwiintlobo zezifo.
Eminye yale mihla, ngokwe-Library yase-US yaseMedical, iquka:
- Ukuhlamba
- Isifo seCeliac
- Izifo
- I-cancer yomthambo
- Isithintelo esiswini
- I-irritable bowel syndrome
- Ulcers, ezifana nesilonda sesilonda
Isifo sikaCrohn, esibandakanya ukuvuvukala kwamathumbu, sinokuthatha iindidi ezininzi kuquka iJjunoileitis. Ngejjunoileitis, i jejunum ivukile; iimpawu ezibangelwa zibandakanya iintlanzi, intlungu, kunye nesifo sohudo.
Indima yeJejunum kwi-Gastric Bypass Surgery
Ugqirha lwe-gastric surpass utyando lusetyenziselwa ukuphatha izifo ezininzi kodwa luyaziwa njengesixhobo sokunciphisa ubunzima kubantu abakhulu kakhulu. Inkqubo eqhelekileyo yokutyelela i-Roux-en-Y ibandakanya iqala ngokuthi "ukunyanyiswa kwesisu" apho ubukhulu besisu buchithwa kakhulu. Emva koko, isisu esincinane, esincinci sinqanyulwa ukusuka kwingxenyana yokuqala yamathumbu amancinci (i-duodenum) kwaye ixhunyiwe kwiJajunum.
Kukho iziphumo ezibalulekileyo ezivela kulolu hlobo lotyando. Okokuqala, isikhwama esincinci sesisu singabamba ngaphantsi, ngoko ukunciphisa inani leekhalori ezifakiwe. Okwesibini, xa ukugaya kugqitha i-duodenum, iikhalori ezincinci kunye nezondlo zingathathwa. "I-Malabsorptive" yokugaya igalelo inceda kwakhona ukulahleka kwesisindo - nangona kunjalo, kuncinci, kunciphisa inani lezondlo ezitholakalayo emzimbeni.
> Imithombo:
> Medline Plus. Izifo ezincinci zamathumbu. ILayibrari yeSizwe ka-US yamayeza. KwiWebhu. 2017.
> Ezempilo zePubmed. Jejunum. ILayibrari yeSizwe ka-US yamayeza. KwiWebhu. 2017.