Tsarin narkewa

Samfurin girman halitta yana nuna cikakken narkewar abinci daga ramin bakin zuwa dawowa. An rarraba ramin bakin, da pharynx da kuma farkon hancin esophagus tare da jirgin saman tsaka-tsakin tsakiya. Ana nuna hanta tare da mafitsara kuma ana rarraba maƙura don bayyana sassan ciki. ciki yana buɗe tare da jirgin sama na gaba, duodenum, cecum, ɓangaren hanjin samll da dubura suna buɗe don fallasa tsarin ciki. Gefen kan gado mai cirewa ne

Tsarin narkewa ya ƙunshi sassa biyu: narkar da abinci da gland na narkewa. Yankin narkewa: ciki har da kogon baka, pharynx, esophagus, ciki, karamin hanji (duodenum, jejunum, ileum) da babban hanji (cecum, appendix, colon, dubura, dubura) da sauran sassan. A likitance, ana kiran sashin daga bakin kofa zuwa duodenum babin sashin jiki na ciki, kuma ana kiran ɓangaren da ke ƙasa da jejunum ƙananan ɓangaren hanji. Akwai gland din narkewa iri biyu: kananan gland din narkewa da manyan gland. Landsananan gland din narkewa sun warwatse a bangon kowane ɓangare na yankin narkewa. Babban gland na narkewa yana da nau'i uku na gland na salivary (parotid, submandibular, and sublingual), hanta da pancreas. Tsarin narkarda abinci yana daya daga cikin manyan tsarin mutum takwas.