Gland wanda ya fara aiki shine a bakin - sallandary gland. Saliva da wadannan glanders ya samar yana dauke da wani enzyme wanda zai fara narke sitaci daga abinci zuwa kananan ƙwayoyi.
Sashin gaba na gland yana cike da ciki. Suna samar da ruwa mai ciki da kuma enzyme wanda ke neman gina jiki. Daya daga cikin ƙwayoyin da ba a warware ba daga tsarin kwayar halitta shine dalilin da yasa marfin ruwan acid na ciki bata narke nama na ciki ba.
A mafi yawancin mutane, mucosa ciki zai iya tsayayya da ruwan 'ya'yan itace, ko da yake abinci da sauran kayan jikin ba zai iya ba.
Bayan ciki ya ɓoye abinci da ruwan 'ya'yan itace a cikin ƙananan hanji, ruwan inabi na wasu kwayoyin halitta masu narkewa tare da abinci don ci gaba da aiwatar da narkewa. Daya daga cikin wadannan gabobin shine pancreas. Yana samar da ruwan 'ya'yan itace da ke dauke da nau'in enzymes masu yawa don karya carbohydrate, mai, da kuma gina jiki a cikin abinci. Wasu enzymes da suke aiki a cikin tsari sun fito daga gland a cikin bango na hanji ko ma wani ɓangare na wannan bango.
Hanta yana samar da wani ruwan 'ya'yan itace mai narkewa - bile. An adana bile tsakanin abinci a cikin gallbladder. A lokacin cin abinci, an fitar da shi daga cikin gallbladder a cikin bile ducts don isa intestine kuma haɗuwa tare da mai a cikin abincinmu. Ciwon bile din ya kawar da mai a cikin abin da ke ciki na ciki na ciki, da yawa kamar masu ƙwayar da ke kwance man shafawa daga gurasar frying.
Bayan da aka narkar da mai, ana yaduwa ta hanyar enzymes daga pancreas da rufin hanji.
Menene Yake Sarrafa Shirin Nishaɗi?
Masu Harkokin Hormone
Wani fasali mai mahimmanci na tsarin narkewa shine cewa yana dauke da masu mulki. Babban hawan kwayoyin da ke kula da ayyukan kwayar halitta suna samarwa kuma sun fito da su a jikin mucosa na ciki da ƙananan hanji.
Wadannan hormones an sake su cikin jini na fili na narkewa, suna tafiya zuwa zuciya da kuma ta hanyar jigilar jini, sannan su koma cikin tsarin narkewa, inda suke zuga da kayan juyayi da kuma sa motsi.
Hanyoyin da ke sarrafa sarrafawa shine gastrin, secretin, da cholecystokinin (CCK):
- Gastrin yana haifar da ciki don samar da wani acid don narkewa da kuma sarrafa wasu abinci. Har ila yau wajibi ne don ci gaban al'ada na ciki na ciki, ƙananan hanji, da kuma mallaka.
- Asirin yana haifar da pancreas don aikawa da ruwan 'ya'yan itace mai narkewa wanda yake da wadata a bicarbonate. Yana motsa cikin ciki don samar da pepsin, wani enzyme wanda yake digirin gina jiki, kuma hakan yana motsa hanta don samar da bile.
- CCK tana haifar da tsire-tsire don yayi girma da kuma samar da enzymes na ruwan 'ya'yan itace, kuma yana sa gallbladder ya zama komai.
Hanyoyin haɗari a cikin tsarin narkewa suna tsara ci abinci:
- Ghrelin ana samarwa a cikin ciki da kuma hanji na sama idan babu abinci a cikin tsarin narkewa kuma yana tasowa ci.
- Yayin da aka samar da peptide YY a fili na GI don mayar da abinci a cikin tsarin kuma ya hana ci.
Duk waɗannan kwayoyin suna aiki a kwakwalwa don taimakawa wajen tsara abinci ga makamashi.
Nerve Regulators
Nau'o'i biyu na jijiyoyi suna taimakawa wajen sarrafa tsarin tsarin narkewa.
Magunguna (waje) jijiyoyi suna zuwa gabobin kwayoyi daga ɓangaren kwakwalwa ko kwakwalwa. Sun saki sinadaran da ake kira acetylcholine kuma wani mai kira adrenaline. Acetylcholine yana haifar da tsoka daga cikin kwayoyin halitta don yaduwa tare da karfi da kuma ƙara "tura" abinci da ruwan 'ya'yan itace ta hanyar hanyar narkewa. Acetylcholine kuma yana haifar da ciwon ciki da pancreas don samar da ruwan 'ya'yan itace masu narkewa. Adrenaline ya danganta da tsoka na ciki da kuma hanji kuma yana rage gubar jini zuwa gabobin.
Har ma mafi mahimmanci, duk da haka, sune jijiyoyin ciki (ciki), wanda ya zama cibiyar sadarwa mai mahimmanci a cikin ganuwar esophagus, ciki, ƙananan hanji, da kuma mallaka.
Ana jijiyoyin jijiyar jiki don yin aiki lokacin da aka shimfiɗa ganuwar gaɓoɓuka marasa ƙarfi ta abinci. Sun saki abubuwa daban-daban da suke saurin ko jinkirta motsi da abinci da kuma samar da juices ta jikin kwayoyin halitta.
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