Izitho zokugaya zibandakanya umzila wesisu, apho kukuthi zonke izenzo zenzeke kunye nezinye izitho zokufikelela. Yilinye ibhubhe elide kakhulu eliqala emlonyeni kwaye liphela nge-anus. Izitho zokufikelela zifaka izinto ezihlukahlukeneyo kwisigxina somzimba esenza inkqubo yonke ibe lula. Nanku ukujonga okufutshane kwiimpawu zokugaya:
Amalungu eSigxathu seNtlungu
Umlomo womlomo. Lo ngumlomo wakho, kwaye ngelixa kungengowomzimba, kubalulekile kuba utywala luqala emlonyeni wakho xa uluma kwaye uhlafuna ukutya kwakho, ngaloo ndlela udibanisa ngemali. I-saliva (okanye i-spit) idla ukutya ukuze kube lula ukugwinya. Iqulethe i-amylase encinci ye-salivary, i-enzyme yokugaya ephula i-carbohydrate.
Pharynx. I-pharynx isabelo somqala wakho apho inxalenye yomlomo wakho idibene ne-esophagus kunye ne-trachea (i-windpipe yakho). Njengomlomo, akusiyo yinkampani, kodwa kubalulekile. Xa usuqedile ukutya, ulwimi lwakho ludlulisa ukutya emva kwe-pharynx. I-flap of tissue ebizwa ngokuthi i-epiglottis igxotha i-windpipe xa uginya ukuze ukutya kungabikho kwi-tube engalunganga.
Isophagus. Emva kokuba uginye i-bolus yokutya, uhamba phantsi kwesisu ukuya kwisisu.
Yinto nje ityhubhu kwaye ayiyiyo inzima.
Isisu. Isisu sakho sisigxina somzimba. Iiselingi esiswini esisongela i- juices esiswini esithintela amaprotheni, kunye namafutha omncinane, kunye nezinye izinto ezimbalwa. Inkontileka yemisipha kwaye idibanise isisu esiswini ukuze udibanise nejusi.
Oku kutshintsha izilwanyana zokutya ozigwinyile kwizinto ezikhoyo ezibizwa ngokuba yi-chyme.
Ndibonise uthando. Amathumbu amancinci apho kugcinwa khona ukugaya kunye nokuxutywa kwezondlo. Ii-enzymes ze-digestive zidiliza izitya zokugqibela zokutya zibe zizezondlo zomntu ngamnye ukuze zihanjiswe kwiindonga ezincinci zamathumbu kunye negazi. Kukho iinxalenye ezintathu kumathumbu amancinci okuthiwa i-duodenum, i-jejunum kunye ne-ileum.
Amathumbu amakhulu. Ngethuba le-chyme lifikelela emathunjini amakhulu, izondlo ziye zafakwa, ngoko ke umsebenzi omkhulu apha ukufumanisa ezinye zamanzi kwaye ulungiselele ukusalalisa ukugqithiswa njengezinto eziphathekayo. Iphela nge-rectum kunye ne-anus.
Amagumbi okufikelela kwiSigxina
Iingqungquthela zentambo. Yonke loo matha ivela kwindawo ethile, kwaye yileyiphi i-stlands efanelekileyo. Unemibhobho emithathu yeengqungquthela, i-parotidi, iincwadana kunye ne-submandibular, eziqukumbele emlonyeni wakho.
Ibindi. Eli lilungu elixakeke kakhulu kunye nemisebenzi emininzi, kodwa ngokugqithiseleyo, kuvelisa i- bile , efihliweyo emathunjini amancinci ukukunceda ukuphula amafutha kunye namafutha.
Gallbladder. Iqumrhu elincinci lebhugi eligcina i-bile kuze kudingeke.
Kuyinto enhle ukuba ube ne-gallbladder, kodwa ungaphila ngaphandle komnye xa kuyimfuneko.
Pancreas. Eli qumrhu lenza i-enzyme yokugaya i-carbohydrates, amafutha kunye nama-protein emathunjini amancinci. Kwakhona ifihla i-bicarbonates ibe emathunjini amancinci, engenzi nto i-pH achic ye-chyme.
Ubunjani neempumlo? Unokuphikisa ingqondo yimbutho yokufikelela ekubeni ukucinga nje kokutya kunokuqalisa ukuhamba kwemali. Ngale ndlela, impumlo yakho ibalulekile kakhulu, kuba ukutya okumnandi oyithandayo kuya kufumana umlomo wakho ukuthambisa. Ukuba uqala ukuxhoma kwe-saliva kukunceda ukugaya ngenxa yokuba yenza kube lula ukuhlafuna nokugwinya ukutya.
Imithombo:
Gropper SS, Smith JL, Groff JL. "Isondlo esiphezulu kunye neMetabolism yabantu." I sixhenxe. EBelmont, CA. I-Wadsworth Publishing Inkampani, ngo-2013. 8, 2016.
Smolin LA, Grosvenor, MB. "Isondlo: iNzululwazi kunye nezicelo." Uluhlu lwesithathu. Inkampani yakwaWiley Publishing, ngo-2013.
I-United States Isebe Lempilo Neenkonzo Zoluntu, iNational Digestive Diseases Information Clearinghouse (NDDIC). "Inkqubo yakho yokuGaya kunye nendlela eSebenza ngayo."