Video: Yuav ua li cas urea raug tshem tawm ntawm cov ntshav?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Lub raum tshem tawm urea los ntawm ntshav los ntawm cov lim me me hu ua nephron. Txhua lub nephron muaj lub pob tsim los ntawm me me ntshav capillaries, hu ua glomerulus, thiab lub raj me me hu ua lub raum tubule.
Ib yam li ib tus yuav nug, ua li cas urea raug tshem tawm ntawm cov ntshav ib qib biology?
Urea yog ua los ntawm daim siab los ntawm cov amino acids ntau dhau thiab thauj los ntawm daim siab mus rau ob lub raum hauv ntshav , thiab lub raum tshem tawm urea thiab tso nws yaj hauv dej, zoo li cov zis. Urea yog lub ntsiab nitrogenous excretory khoom ntawm tib neeg.
Tom qab ntawd, lo lus nug yog, cov tshuaj twg raug tshem tawm ntawm cov ntshav thaum pom? Glomerulus lim cov ntshav thiab tshem tawm dej , piam thaj, ntsev thiab pov tseg urea los ntawm nws. Cov ntshav nyob hauv qhov siab thaum pib ntawm nephron, uas pab ua kom pom cov ntshav. Cov no pov tseg tshuaj txhua yam dhau los ntawm cov hlab ntsha hauv glomerulus mus rau hauv Bowman lub tsiav tshuaj. Qhov no ntxuav cov ntshav.
Hauv qhov no, yuav ua li cas yog tias urea tsis raug tso tawm?
Yog koj ob lub raum ua tsis tshem tawm cov pov tseg no, nws yuav tsim hauv cov ntshav thiab ua rau koj lub cev puas tsuaj. Qhov tseeb lim tshwm sim hauv cov chav me me hauv koj ob lub raum hu ua nephrons. Ntau dhau lawm urea ua , hauv cov ntshav hu ua uraemia.
Vim li cas urea tawm ntawm txoj kab sau?
Hauv khaws cov ciav hlau , urea ua yog reabsorbed ua ke nrog dej. Cov txheej txheem no pab kom tsim cov osmolar siab urea ua gradient nyob rau hauv lub raum medulla, uas yog qhov tseem ceeb rau lub raum tso zis ntau ntau. Nws zoo li cov lus teb luv yog qhov ntawd urea ua reabsorption yog koom nrog hauv kev nqus dej los ntawm cov zis.
Pom zoo:
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