Cov txheej txheem:
![Peb hom kev hla kev thauj mus los ntawm tes uas tshwm sim hauv GI txoj kab ke yog dab tsi? Peb hom kev hla kev thauj mus los ntawm tes uas tshwm sim hauv GI txoj kab ke yog dab tsi?](https://i.answers-medical.com/preview/medical-health/14095566-what-are-the-three-types-of-across-cell-transportation-that-occur-in-the-gi-tract-j.webp)
Video: Peb hom kev hla kev thauj mus los ntawm tes uas tshwm sim hauv GI txoj kab ke yog dab tsi?
![Video: Peb hom kev hla kev thauj mus los ntawm tes uas tshwm sim hauv GI txoj kab ke yog dab tsi? Video: Peb hom kev hla kev thauj mus los ntawm tes uas tshwm sim hauv GI txoj kab ke yog dab tsi?](https://i.ytimg.com/vi/kAY06rJEJTA/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Kev nqus yog txheej txheem nyuaj, uas cov as -ham los ntawm cov zaub mov zom zom tau sau. Absorption tuaj yeem tshwm sim los ntawm tsib mechanisms: (1) nquag thauj , (2) passive diffusion, ( 3 ) pab txhawb kev sib kis, (4) thauj (lossis theem nrab ua haujlwm thauj ), thiab (5) endocytosis.
Kuj paub yog, kev thauj mus los li cas tshwm sim hauv txoj hnyuv me?
Hauv nquag thauj , particles txav tawm tsam cov concentration gradient thiab yog li ntawd yuav tsum tau ib tug input ntawm lub zog ntawm lub cell. Thaum lub sijhawm zom zaub mov, cov villi nyob hauv hnyuv me nqus tau cov as -ham uas nqus tau. Thaum lub sij hawm, lub concentration ntawm cov as-ham nyob rau hauv lub villi ncav cuag ib tug equilibrium nrog lub concentration nyob rau hauv lub plab.
Ib qho ntxiv, kev thauj Paracellular txhais li cas? Paracellular thauj hais txog cov hloov ntawm cov tshuaj hla tus epithelium los ntawm kev hla qhov chaw nruab nrab ntawm cov cell. Nws yog nyob rau hauv sib piv rau transcellular thauj , qhov twg cov tshuaj hla mus los ntawm lub xovtooj, hla los ntawm ob qho tib si apical membrane thiab basolateral membrane.
Kuj Paub, qhov feem ntau nqus tau tshwm sim hauv GI txoj hnyuv?
Kev nqus ntawm feem ntau ntawm cov as-ham tshwm sim hauv jejunum, nrog rau cov hauv qab no tshwj xeeb:
- Hlau yog nqus hauv duodenum.
- Vitamin B12 thiab ntsev ntsev tau nqus rau hauv lub dav hlau ileum.
- Dej thiab lipids yog absorbed los ntawm passive diffusion thoob plaws hauv cov hnyuv.
Dab tsi yog cov txheej txheem rau kev thauj cov piam thaj hla cov hnyuv epithelium?
Txawm hais tias lub xovtooj siv tau yooj yim diffusion lossis nquag thauj nyob ntawm cov kev xav tau tshwj xeeb ntawm cov cell. Piv txwv li, qab zib qabzib yog thauj los nquag thauj los ntawm lub cev plab hnyuv epithelial cell, tab sis los ntawm kev yooj yim diffusion hla daim nyias nyias ntawm cov ntshav liab.
Pom zoo:
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Dab tsi yog ob txoj hauv kev uas cov qe ntshav dawb tawm tsam cov kab mob uas nkag mus rau hauv lub cev?
![Dab tsi yog ob txoj hauv kev uas cov qe ntshav dawb tawm tsam cov kab mob uas nkag mus rau hauv lub cev? Dab tsi yog ob txoj hauv kev uas cov qe ntshav dawb tawm tsam cov kab mob uas nkag mus rau hauv lub cev?](https://i.answers-medical.com/preview/medical-health/14027525-what-are-two-ways-in-which-white-blood-cells-fight-pathogens-that-have-entered-the-body-j.webp)
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Dab tsi yog qhov tshwm sim ntawm lub cev uas tshwm sim los ntawm kev ntxhov siab?
![Dab tsi yog qhov tshwm sim ntawm lub cev uas tshwm sim los ntawm kev ntxhov siab? Dab tsi yog qhov tshwm sim ntawm lub cev uas tshwm sim los ntawm kev ntxhov siab?](https://i.answers-medical.com/preview/medical-health/14041235-what-is-a-physical-reaction-that-results-from-stress-j.webp)
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