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Video: Lub raum ua haujlwm li cas thiaj ua rau cov ntshav siab?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Ib tshuab cov raum siv rau tsa cov ntshav siab yog to. nce secretion ntawm renin los ntawm juxtaglomerular complex. Cov tuab tuab nce ntawm cov nephron lub voj (lub voj ntawm Henle) yuav luag tsis muaj dej, tab sis reabsorbs sodium, potassium, thiab chloride ions los ntawm cov lim.
Tsuas yog li ntawd, lub raum siv cov txheej txheem dab tsi los tsa cov ntshav siab?
Angiotensin II nce systemic ntshav siab thiab txhawb kev tso tawm ntawm aldosterone, uas txhawb nqa sodium retention/potassium secretion thiab nce ntxiv hauv ntshav siab , hauv ob qho xwm txheej khaws cia lub raum perfusion thiab tswj GFR. Qhov thib peb tshuab yog tubuloglomerular tawm tswv yim.
Kuj Paub, yuav ua li cas tus afferent Arteriole tswj ntshav siab? Cov afferent hlab ntsha yog ib pab pawg ntawm ntshav cov hlab ntsha uas muab cov nephrons hauv ntau cov kab ke tso tawm. Lawv ua lub luag haujlwm tseem ceeb hauv kev tswj hwm ntawm ntshav siab raws li ib feem ntawm tubuloglomerular tawm tswv yim mechanism. Cov cov hlab ntsha loj ceg los ntawm cov hlab ntsha hauv lub raum, uas yog khoom siv ntshav mus rau lub raum.
Tom qab ntawd, ib tug kuj yuav nug, ua li cas lub raum ua rau cov ntshav siab?
Thaum lub ntim ntawm ntshav yog tsawg, cov hlab ntsha hauv lub cev ob lub raum zais cov renin ncaj qha rau hauv kev ncig. Qhov no ua rau cov kua dej ntau ntxiv hauv lub cev, uas kuj nce ntxiv ntshav siab . Yog tias renin-angiotensin-aldosterone lawv active heev, ntshav siab yuav siab dhau.
Yam twg ntawm nephron tswj ntshav siab?
Lub raum yog qhov tseem ceeb rau tswj ntshav siab . Angiotensin thiab aldosterone ua lub luag haujlwm tseem ceeb.
Pom zoo:
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