Indima yezinambuzane ezincane ekugayeni kubaluleke kakhulu futhi, kungashiwo, yisigaba sokugcina ekudleni kwamanzi okudla okunye okudingekayo emzimbeni wethu.
Ulwazi olujwayelekile mayelana nomathumbu omncane womuntu
Izigaba eziyinhloko zokugaya ziphethwe emathunjini amancane, okuyinto engxenyeni ende kunazo zonke, enezindawo ezingamamitha angaba ngu-200. Kule ngxenye yesigubhu sezinyosi ukuthi izakhi eziningi, kanye nezinhlayiya, ubuthi, izidakamizwa, kanye nama-xenobiotics ezigonywa umzila womlomo ziyangena. Ukwengeza kokugaya, ukumunwa nokuthutha kwazo zonke lezi zinto, imisebenzi yokuvimbela i-hormone kanye nokuvikeleka kwe-immune kwenziwa emathunjini amancane.
Umathumbu omncane uhlanganisa iminyango emithathu:
- i-duodenum;
- i jejunum;
- i-ileum.
Nokho, phakathi kweminyango emibili yokugcina ayikho umngcele ocacisiwe.
Zonke izingxenye zomathumbu amancane zikhahlekile futhi zinezikhumba ezine:
- izimbungulu ezinamaqanda;
- i-submucosal;
- i-muscular;
- serous.
Ukugaya kanjani emathumbu amancane?
Ukudla okuvela esiswini kungena esigabeni se-duodenal, lapho kuvezwa khona nge-bile, kanye nama-pancreatic nama-intestinal. Ukugaya emathunjini amancane omuntu kusebenza kakhulu ekuthandeni izakhi zomzimba, ngakho-ke kulapha ukuthi ukugaya kokugcina kokudla okudliwe kwenzeka ngosizo lwamanzi emathunjini, anamaqembu amathathu ama-enzyme. Kulesi simo, kunezinhlobo ezimbili zokugaya emathunjini amancane: isikhumba kanye nephariyali. Ngokungafani nokugaya kwe-parietal emigqabeni emabhere amancane amathumbu angama-80% wezinyathelo zokugcina ze-hydrolysis futhi ngesikhathi esifanayo ukuxuba izinto ezidliwe ekudleni.
Ama-enzyme akhiqizwa yizigulane zamathumbu amancane angakwazi ukuhlukanisa izibopho ezimfushane kuphela zama-peptide noshukela,
Noma kunjalo amangqamuzana e-epithelium emathunjini amancane enza i-mesh okuthiwa i-mesh, lapho kuzophela khona izinto ezihlanganisiwe kuphela, futhi ama-molecule angashintshi of isitashi noma amaprotheni, isibonelo, angeke angena futhi athuthwe ukuze aqhubeke "processing".