![Venous capacitance txhais li cas? Venous capacitance txhais li cas?](https://i.answers-medical.com/preview/medical-health/14112222-what-does-venous-capacitance-mean-j.webp)
Video: Venous capacitance txhais li cas?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Vascular capacitance hais txog qib ntawm kev ruaj khov ntawm cov hlab ntsha (feem ntau yog cov leeg) uas cuam tshuam rov qab los ntawm cov ntshav mus rau lub plawv thiab yog li tso tawm lub plawv.
Tsis tas li ntawd, qhov systemic venous capacitance yog dab tsi?
Dilation ntawm arterial (kuj) cov hlab ntsha ua rau txo qis hauv zoo vascular tsis kam, uas ua rau poob ntawm cov ntshav siab. Dilation ntawm venous ( muaj peev xwm ) cov hlab ntsha txo qis venous ntshav siab.
Tom qab ntawd, lo lus nug yog, vim li cas cov hlab ntsha hu ua capacitance hlab ntsha? Cov leeg kuj yog hu ua cov hlab ntsha muaj peev xwm vim lawv muaj 60% ntawm lub cev cov ntshav. Hauv kev ua haujlwm ib puag ncig, cov ntshav oxygenated tau tso los ntawm sab laug lub ventricle los ntawm cov hlab ntsha mus rau cov leeg thiab cov kabmob ntawm lub cev, qhov twg nws cov as -ham thiab roj cua tau sib pauv ntawm cov hlab ntshav.
Hauv kev hwm rau qhov no, dab tsi yog qhov ua kom muaj ntshav txaus?
Qhov ntsuas ntawm BLOOD VESSEL lub peev xwm nce qhov ntim ntshav nws tuav tsis muaj qhov loj nce hauv ntshav siab. Lub cev muaj peev xwm yog sib npaug rau qhov kev hloov pauv hauv ntim faib los ntawm kev hloov pauv hauv siab.
Dab tsi ua rau venous rov qab?
Ib tug loj mechanism txhawb rov qab venous thaum lub sijhawm ua haujlwm hauv lub cev (piv txwv li, taug kev, khiav) yog cov leeg nqaij. Venous li qub tiv thaiv cov ntshav tsis txhob ntws rov qab, yog li tso cai kev khiav tsis zoo uas ua kom zoo dua qub rov qab venous.
Pom zoo:
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Los ntawm Wikipedia, phau ntawv txhais lus pub dawb. Cov lus kho mob yog cov lus siv los piav qhia meej txog tib neeg lub cev suav nrog nws cov khoom, txheej txheem, cov xwm txheej cuam tshuam rau nws, thiab cov txheej txheem ua rau nws. Cov lus siv kho mob tau siv hauv thaj chaw tshuaj
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Kev hnov pob ntseg, tseem hu ua kev hnov lus tsis zoo, yog ib feem lossis tag nrho tsis muaj peev xwm hnov tau. Ib tug neeg lag ntseg tsis hnov me ntsis. Kev hnov pob ntseg raug kuaj pom thaum kuaj lub suab pom tias ib tus neeg tsis tuaj yeem hnov 25 decibels tsawg kawg ib pob ntseg
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Lub venous kua ntawm lub hlwb tsis ua raws li cov hlab ntsha ntawm lub hlwb. Hloov chaw, lawv ntws mus rau qhov quav qhov quav, uas tom qab ntws mus rau sab hauv cov hlab ntshav. Feem ntau, cov phab ntsa ntawm cov txheej txheem kev lim dej no tau tsim los ntawm visceral periosteum thiab kev xav txog ntawm dural, ob txoj kab nrog endothelium
Nws txhais li cas yog tias ntshav siab sib txawv hauv txhua txhais caj npab?
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Lawv kuj muaj kev pheej hmoo ntau ntxiv ntawm kev txhim kho kab mob plawv thiab cuam tshuam txog teeb meem nyob rau 13 xyoos tom ntej. Qhov sib txawv loj hauv kev ntsuas ntshav siab ntawm koj txhais caj npab tuaj yeem yog ib qho cim ntawm teeb meem kev noj qab haus huv, xws li: Cov hlab ntshav txhaws hauv koj txhais caj npab (kab mob hlab ntsha hauv nruab nrog cev) Kab mob hauv lub raum
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Lub ntsiab lus & piav qhia rau Hairy Feet phau ntawv txhais lus! Yog tias muaj dab tsi tshwm sim rau ib txhais taw hauv kev npau suav, nws yuav cuam tshuam txog nws cov nyiaj txiag sawv, ua haujlwm, ua haujlwm hnyav, nws tus thawj coj lossis nws cov neeg sawv cev. Yog tias ib tus pom nws txhais taw taw rau saum ntuj hauv npau suav, nws tuaj yeem qhia txog kev tuag ntawm nws tus menyuam