Qhov sib txawv tseem ceeb ntawm kev zom zaub mov hauv plab thiab plab hnyuv hauv plab yog hom kev zom zaub mov uas tshwm sim. Hauv plab, ob qho tib si tshuaj lom neeg thiab kev zom zaub mov yuav siv qhov chaw thaum, hauv plab hnyuv, tsuas yog tshuaj lom neeg zom zaub mov xwb.
Kev zom zaub mov yog cov txheej txheem uas cov tsiaj nqus cov as-ham tom qab noj cov zaub mov. Kev zom zaub mov suav nrog cov txheej txheem tshuaj thiab cov txheej txheem. Lub plab zom mov ntawm cov kab mob siab dua xws li tib neeg muaj ntau yam kabmob. Txhua yam ntawm cov kabmob no muaj lub luag haujlwm tseem ceeb hauv kev zom zaub mov. Digestion nyob rau hauv lub plab yog hais txog ob qho tib si tshuaj thiab mechanical digestion ntawm cov zaub mov uas tshwm sim nyob rau hauv lub plab mog los yog lub plab. Digestion nyob rau hauv txoj hnyuv yog hais txog cov tshuaj digestion txheej txheem uas tshwm sim nyob rau hauv cov hnyuv. Tom qab kev zom zaub mov, cov khoom tawg tau nqus mus rau hauv cov hlab ntsha ntawm cov hnyuv me thiab.
Kev zom zaub mov hauv plab yog dab tsi?
Kev zom zaub mov hauv plab yuav siv tshuaj thiab siv tshuab. Cov kua txiv hmab txiv ntoo uas zais los ntawm lub plab pib ua cov txheej txheem digestion. Cov txheej txheem tshuaj digestion hauv plab feem ntau yog kho los ntawm cov kua txiv hmab txiv ntoo thiab lwm yam enzymes. Raws li, cov kua txiv hmab txiv ntoo muaj hydrochloric acid ua nws cov khoom tseem ceeb. Yog li ntawd, qhov no tsim ib tug acidic ib puag ncig uas pab nyob rau hauv digestion. Ntxiv rau cov kua txiv hmab txiv ntoo, lwm cov enzyme hu ua pepsin koom nrog hauv cov txheej txheem plab zom mov los ntawm degrading cov proteins rau hauv cov amino acids. Tsis tas li ntawd, lub plab secretes gastric lipase, uas zom cov rog rau hauv glycerol thiab fatty acids. Tsis tas li ntawd, kev zom cov mis nyuj protein, casein kuj tshwm sim hauv plab nrog kev ua ntawm renin.
Daim duab 01: Kev zom hauv plab
Cov txheej txheem kev zom zaub mov hauv lub plab yog tus cwj pwm los ntawm kev ua kom tsis tu ncua perist altic uas tshwm sim hauv plab. Lub plab phab ntsa pab txhawb cov kev txav mus los perist altic. Raws li, cov leeg nqaij tsis tu ncua uas tshwm sim hauv plab ua cov zaub mov rau hauv lub plab uas khaws cia hauv plab rau 2 - 3 teev.
Dab tsi yog digestion hauv plab?
Kev zom zaub mov hauv cov hnyuv tau txwv rau kev zom zaub mov. Yog li, kev zom zaub mov yog ua tiav los ntawm kev ua haujlwm enzymatic. Nyob rau hauv sib piv rau lub plab, cov hnyuv me muaj alkaline pH. Qhov no yog ua los ntawm kev tso tawm ntawm bicarbonates mus rau txoj hnyuv me. Muaj ntau cov enzymes ua haujlwm ntawm cov hnyuv nrog rau cov zymogen enzymes xws li trypsinogen thiab chymotrypsinogen. Cov no ua rau cov proteins kom zom cov proteins kom yooj yim amino acids. Ntxiv rau qhov ntawd, lipases rhuav tshem cov lipids rau hauv cov roj fatty acids yooj yim, thiab glycerols thiab nucleases rhuav tshem cov nucleic acids rau nws cov monomers. Yog li ntawd, kev ua tiav ntawm kev zom zaub mov yuav tshwm sim hauv cov hnyuv me.
Daim duab 02: Kev zom hauv cov hnyuv me
Nyob rau tom qab anatomical qhov chaw ntawm cov hnyuv me, qhov nqus ntawm cov zaub mov digested tshwm sim. Qhov no tshwm sim los ntawm cov qauv villi uas muaj nyob rau hauv txoj hnyuv me. Kev nqus ntawm cov khoom tawg zaum kawg ntawm kev zom rau cov hlab ntsha tseem yog lwm txoj haujlwm ntawm cov hnyuv me. Tsis tas li ntawd, cov fatty acids tau ntim rau hauv chylomicrons thiab absorbed rau hauv cov hlab ntsha. Nyob rau hauv kev sib piv rau cov hnyuv me, cov hnyuv loj tsis dhau ib qho txheej txheem digestion. Nws yog lub cev tseem ceeb uas nqus dej.
Dab tsi zoo sib xws ntawm kev zom plab hauv plab thiab plab hnyuv hauv plab?
- Kev zom zaub mov hauv plab thiab plab hnyuv hauv plab yog kho los ntawm cov tshuaj xws li enzymes.
- Cov txheej txheem digestion no tshwm sim hauv cov kab mob uas muaj cov kab mob plab zom mov tiav.
- Tsis tas li, pH tswj hwm ob txoj kev zom zaub mov.
- Tsis tas li ntawd, kev ua haujlwm hormonal cuam tshuam nrog ob txoj kev zom zaub mov.
- Ob lub plab thiab cov hnyuv me secrete zymogens.
Qhov txawv ntawm kev zom plab hauv plab thiab plab hnyuv hauv plab yog dab tsi?
Kev zom zaub mov tshwm sim hauv cov kab mob sib txawv ntawm lub plab zom mov. Lub plab thiab cov hnyuv me yog ob qhov chaw uas zom zaub mov tshwm sim. Kev zom zaub mov hauv plab tshwm sim hauv acidic pH thaum zom zaub mov hauv cov hnyuv me tshwm sim hauv alkaline pH. Qhov no yog qhov sib txawv loj ntawm kev zom zaub mov hauv plab thiab plab hnyuv hauv plab. Tsis tas li ntawd, qhov sib txawv tseem ceeb ntawm kev zom zaub mov hauv plab thiab plab hnyuv hauv plab yog tias kev zom zaub mov hauv plab yog cov txheej txheem tshuaj thiab tshuaj lom neeg thaum zom zaub mov hauv plab hnyuv tag nrho cov txheej txheem tshuaj.
Cov lus qhia hauv qab no ntawm qhov sib txawv ntawm kev zom zaub mov hauv plab thiab plab hnyuv hauv plab qhia ntau qhov sib piv ntawm ob qho tib si.
Summary – digestion in plab vs digestion intestine
Kev zom zaub mov yog txheej txheem tseem ceeb hauv cov tsiaj muaj sia. Cov kab mob siab dua muaj lub plab zom mov tiav. Yog li ntawd, digestion tshwm sim nyob rau hauv ntau lub cev ntawm lub digestive ib ntsuj av. Digestion nyob rau hauv lub plab muaj ob qho tib si mechanical thiab tshuaj digestions txheej txheem. Nyob rau hauv sib piv, digestion nyob rau hauv txoj hnyuv yog txwv rau cov tshuaj digestion. Kev zom hauv ob qhov chaw yog tswj hwm los ntawm pH. Lub acidic pH ntawm lub plab ua rau lub plab zom mov. Hauv qhov sib piv, alkaline pH ntawm txoj hnyuv ua rau kev zom zaub mov hauv cov hnyuv. Li no, qhov no qhia txog qhov sib txawv ntawm kev zom zaub mov hauv plab thiab plab hnyuv hauv plab.
