Video: Dab tsi yog koom nrog hauv active thiab passive tubular reabsorption?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Feem ntau ntawm cov reabsorption ntawm cov kua uas tsim nyog rau lub cev ua haujlwm ib txwm muaj, xws li cov amino acids, qabzib, thiab ntsev, yuav siv qhov chaw nyob ze ntawm qhov chaw. cev . Qhov no reabsorption tej zaum yuav nquag , zoo li ntawm cov piam thaj, cov amino acids, thiab peptides, hos dej, tshuaj chloride, thiab lwm yam ions tsis ua haujlwm reabsorbed.
Tom qab ntawd, ib tus tseem yuav nug, puas yog tubular reabsorption ua haujlwm lossis passive?
Tubular secretion yog kev hloov cov ntaub ntawv los ntawm peritubular capillaries mus rau lub raum tubular lumen; nws yog tus txheej txheem opposite ntawm reabsorption . Qhov no zais zis yog tshwm sim los ntawm nquag thauj thiab passive nthuav tawm.
Ib tug kuj yuav nug, dab tsi yog active tubular reabsorption? Hauv lub cev lub cev, reabsorption los yog tubular reabsorption yog cov txheej txheem uas cov nephron tshem tawm cov dej thiab cov kuab tshuaj los ntawm cov tubular kua (ua ntej tso zis) thiab xa lawv mus rau cov ntshav ncig. Cov tshuaj yog reabsorbed los ntawm cev nyob rau hauv lub peritubular capillaries.
Tsis tas li lo lus nug yog, dab tsi yog active thiab passive reabsorption?
Passive Kev thauj mus los tshwm sim hauv lub raum vim cov ntshav me me hu ua glomerulus muaj lawv cov khoom pov tseg tawm ntawm cov ntshav. Active thauj tuaj yeem pom hauv ob lub raum, ntawm reabsorption theem hauv nephrons. Nrog rau cov nephron, lub network loj ntawm cov hlab ntshav puag ncig cov tubules uas nqa cov pov tseg.
Cov tshuaj dab tsi yog reabsorbed los ntawm passive thauj?
Glucose, amino acids thiab lwm yam tshuaj diffuse tawm ntawm lub epithelial cell cia lawv concentration gradients rau passive transporters thiab yog ces reabsorbed los ntawm cov ntshav capillaries.
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