Emathunjini amancane ... Likuphi mncane - kukhona kwamangqamuzana?

Eqinisweni, naphezu kwegama layo, lokhu sitho wokugaya ukudla anele. Ngakho igama elithi "izinyembezi" lingasho, kunalokho, umonakalo kwepulani - hhayi ngokomzimba, futhi zisebenza kahle. Kodwa emathunjini zabo ezincane echayeke okungenani kwezinye izitho, futhi iyiphi enye indlela, uma siqhubeka abasindwayo umsebenzi wakhe, ngokuvamile ngokwezinga elikhulu ke ohlushwa.

By the way, emathunjini amancane akuyona ezicashile ngakho - kusuka 3,75 kuya 5 cm ububanzi, nje ngoba wayebizwa ngokuthi "Ngokuphambene" ne emathunjini ezinkulu. Umelela ngamapayipi amamitha mayelana 7.5 ubude, okuyinto izihibe eziningi "eligoqiwe" phakathi komgodi ongaphakathi kwamathumbu. Kodwa isakhiwo emathunjini amancane abutholakali tube eyodwa nje - kukhona izingxenye ezintathu: duodenum, emathunjini amancane futhi ileum. Ngalinye - enjongweni yawo.

Ngakho, ngemva ukucutshungulwa chyme isisu ngendlela reflex ingena emathunjini amancane. Futhi lokhu kwenziwa kancane kancane ngaphakathi esibhedlela babekhipha. Enamandla wave peristaltic kwembula ukukhiya elamandla - uhlobo ichopho kwayo kuleyo ndawo yokuhweba isisu. Le nqubo kuqinisekisa ukugeleza iyunifomu. Ngakho ingxenye incumbe "aphonswe" ekuqaleni emathunjini amancane - the duodenum. Nakuba ingxenye emfushane kunazo - cm 25-30 kuphela - kodwa lokhu lapho kanzulu ezibaluleke kakhulu izinqubo wokugaya ukudla. Ukudla agcinwe kule ukucutshungulwa esiswini, ngobuningi exutshwe juice esiswini, okuyinto acid ngokucophelela neutralized yi enzyme ekhiqizwa odongeni duodenal, kanye nalabo ezidla lapha kwamanyikwe. I ngomnikelo omncane ukwethula nokuphetha esinyeni inyongo esesikhundleni yokungena ayo lapha - liqhubeke umkhiqizo isibindi - Bile kusiza inhlabamkhosi amafutha. Ingxube juice emathunjini ne Bile futhi uhlaba pancreatic izingcezu ukudla okunjalo ngomzuzu izinhlayiya, okuyinto ke kuyodingeka akunankinga amuncwa wumzimba ogangeni emathunjini.

Ngo le jejunum, ogama obuphelele imayelana 3.5 amamitha, inqubo wabe umthelela enzyme. Izindonga lo mnyango, kanye lo ileum, ifakwe izigidi villi ezincane, lapho angena izakhi igazi. Ileum them zuza kakade ngaphansi - leli khadi "bakhonza" kuya-calcium umzimba, abanye amaminerali namavithamini amaningi, izingxenye Bile, namanzi. Futhi at the ophumayo, edabula esifundeni ileocecal yesiteshi, ukudla undigested lidlule emathunjini ezinkulu.

Emathunjini amancane ngezinhlobo ezimbili iminyakazo ngokuqhubekayo kwenzeka - peristaltic pendular futhi - beyikhipha ukudla ngesilinganiso esingaba ka 2 cm ngomzuzu. Lo msebenzi umsindo othize esiwabiza ngokuthi "isisu ukuduma." Motor ukwehluleka, kanye ezihlukahlukene dyspepsia (kahle umsebenzi evamile) kukhona nje izifo ezivame kakhulu ezibhekene emathunjini amancane. Ngokuvamile kanye esiswini noma emathunjini ezinkulu kuthintwa, yena gastoenteritami, enterocolitis futhi gastroehnterokolitah. izinqubo okuvuthayo kule ngxenye wokugaya ukudla ipheshana iziyaluyalu kuholele secretory kanye motor umsebenzi "umzali" iminyango, umzimba kanye kwegazi, nokungezwani komzimba nezinto nemiphumela ngisho engavamile zezulu.

Izimpawu ze-isifo samathumbu - kungcono ikakhulukazi esikubiza ubuhlungu besisu (ngokuvamile, lokhu oyisiphukuphuku inkaba ubuhlungu), umuzwa wobukhulu, noma nishaye-kwentaba. Ingabe futhi libhekene ikhanda kanye ubuthakathaka jikelele, ukungakuthandi ukudla bese kwesisindo, ngezinye izikhathi zenzeka iziyaluyalu uvalo.

Khumbula ukuthi ngokuvamile iningi kuholele anobuthi isifo wamathumbu imiphumela amakhemikhali, izidakamizwa kanye nemikhiqizo eliphansi, kanye ukuphazamiseka kwemikhuba yokudla. Ngakho-ke, ukuvimbela kungcono kakhulu onomqondo yokusondela yokudla, ukuqedwa nogwayi notshwala, futhi zinsiza ka Izithako zokudla kanye amavithamini.