Human gabobin da narkewa

Narkewa kamar gabobin mutum ya yi da daya daga cikin mafi muhimmanci physiological ayyuka - ci abinci, maida shi zuwa makamashi, saki gina jiki da kuma nuna jiki tõzarta. Lura cewa duk wadannan ayyuka suna lauye da aiki na sauran sashin jiki da tsarin da cewa aiki smoothly. Alal misali, a kan aiwatar da narkewa gabobin na taka muhimmiyar rawa na jijiyoyi na mutum - su ne a yalwace sanye take da duk na narkewa kamar tsarin. Bayan duk jini samun abinci abubuwa da daukawa su a ko'ina cikin jiki.

mutum narkewa kamar tsarin za a iya raba iri biyu - na farko da na biyu. Ainihin suna masu tsaye hade da liyafar, kuma digesting abinci karbo daga jiki. Karin ne gland shine yake (salivary kuma pancreas), hanta, gall mafitsara. Wadannan mutum narkewa kamar gabobin asirce wadannan enzymes, ba tare da abin da narkewa aiwatar dã ya kasance ba zai yiwu ba.

A tsarin da mutum narkewa kamar gabobin ne musamman wuya, saboda su ayyuka. An fara narkewa kamar tsarin da baka rami - a nan ya auku farko machining hakora da kuma abinci precipitated yau. Parotid yau saki, sublingual da submandibular salivary gland. By ta amfani da enzymes, wanda aka dauke a yau, narkewar abinci farawa riga a cikin bakinka - abin da ake kira na farko hydrolysis aiwatar da digesting carbohydrates. Next da abinci shiga cikin makogwaro, sa'an nan a cikin esophagus. A esophagus ne mai dogon tube cewa haɗu da mashiga ruwa da ciki-tsaron tsoka, ya hana abinci zura baya cikin esophagus. Yawanci wannan yanki ne har yanzu talauci ci gaba a yara wanda AMAI akai-akai marmaro a reflux.

Da zarar a ciki, abinci ya wuce ta kusa da mataki na narkewa. Akwai auku hydrolysis sunadaran da kuma fats partially. Don narkewa tsari da aka qualitatively da cikakken ciki bango asirce takamaiman lazimta a kansu enzymes kamar hydrochloric acid, da dai sauransu Bugu da kari a ciki, enzymes ne secreted da kuma karin gland shine yake - pancreas. Bayan da abinci ya wuce da zama dole aiki a ciki, shi ya wuce a cikin hanji.

Kananan hanji - wani jiki dabam wanda digests abinci. A duodenum sami abinci kai tsaye daga ciki, kuma wannan shi ne inda girma na sake yin fa'ida fats, narkewa kamar enzymes daga cikin gallbladder, da nassi wanda ya buɗe a cikin duodenum.

Kananan hanji abinci kayayyaki da kara, duk yayin da zalunta ta chyme - musamman abu. A karshe tsakiyan nonon mataki na faruwa narkewa kamar abubuwa a kan membranes na kananan hanji Kwayoyin - enterocytes. Ga shi yana tunawa a cikin jini na oligosaccharides, amino acid, monosaccharides, m acid. Abinci sharan cewa ba su iya nike, fasalin cikin manyan hanji. Amma da narkewa da sha a cikin manyan hanji ba faru, amma abinci da aka fi mayar da warware daga ruwa. Sannu a hankali narkewar abinci jũya a cikin tumbi. A lokacin tsarin kula da zhomu - m madauwari tsoka buoyancy tumbi fita ta cikin sphincter - nauyi yana sanya matsa lamba a kan hanji bango, kuma Yanã jin defecation.

Human gabobin da narkewa - mai ban mamaki tsarin, amma a lokaci guda kuma mafi m. Hažaka Binaries dogara a kan wanda abinci ne narkewar. Abin baƙin ciki, birane mazauna saboda su da aikin yi sau da yawa je azumi abinci, m (a kudi na dadin dandano), amma cikakken mara amfani da kuma wani lokacin cutarwa abinci. Ko da tsoho Helenawa - da gane sages - ya ce: "Mun - abin da muka ci", jaddada muhimmancin abinci a rayuwar mutum. Wannan shi ne wani abu daraja tunanin ...