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Video: Vim li cas arterioles txo ntshav siab?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Kev txwv ntawm cov hlab ntsha nce kev tiv thaiv uas ua rau a txo nyob rau hauv ntshav ntws mus rau hauv cov hlab ntsha hauv qab thiab loj dua txo nyob rau hauv ntshav siab . Dilation ntawm cov hlab ntsha ua a txo nyob rau hauv tsis kam uas nce ntshav ntws mus rau hauv cov hlab ntsha hauv qab thiab me dua txo nyob rau hauv ntshav siab.
Yooj yim li ntawd, vim li cas ntshav siab hauv cov hlab ntshav qis?
Ntshav Flow Zoo li txhua yam kua, ntshav ntws los ntawm qhov siab siab cheeb tsam mus rau cheeb tsam nrog siab dua . Ntshav flow yog slowest nyob rau hauv lub cov hlab ntsha , uas tso cai rau lub sij hawm rau kev pauv cov pa roj thiab cov as-ham. Kev tawm tsam yog lub zog uas tawm tsam qhov ntws ntawm cov kua dej. Hauv ntshav cov hlab ntsha, feem ntau ntawm cov tsis kam yog vim lub nkoj txoj kab uas hla.
ntshav siab cuam tshuam li cas cov ntshav ntws? Siab ntshav siab tuaj yeem ua tau ua rau koj cov hlab ntsha puas los ntawm kev ua kom lawv tsis ywj pheej, uas ua rau txo qis ntws ntawm ntshav thiab oxygen rau koj lub plawv thiab ua rau mob plawv. Tsis tas li ntawd, txo qis ntshav ntws mus rau lub plawv tuaj yeem ua rau : Qhov ntev dua ntshav ntws yog thaiv, ntau dua puas rau lub plawv.
Tsuas yog li ntawd, yuav ua li cas thiaj tswj tau cov ntshav siab?
Txoj kev sab nrauv pib thaum lub plawv dhia ntshav hla lub aorta thiab txuas ntxiv mus raws li qhov ntshav ua nws txoj kev mus rau qhov tsawg tshaj plaws ntawm ntshav cov hlab ntsha hu ua capillaries. Kev ua haujlwm ntawm cov hlab ntsha yog li ntawd, yog tswj hwm ntshav siab kom nws nyob ruaj khov thiab tsis tshua muaj kev hloov pauv.
Puas Kuj nce lossis txo ntshav siab?
Hauv cov hlab ntsha system, uas tsis kam nce , ntshav siab nce thiab ntws txo . Nyob rau hauv lub venous system, constriction nce ntshav siab zoo li nws ua hauv cov hlab ntsha; cov nce siab pab kom rov qab los ntshav mus rau lub plawv.
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