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Video: Dab tsi tshwm sim rau cov hlab ntsha thaum ua haujlwm?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Qoj ib ce cov leeg xav tau ntshav ntxiv. Thiab nyob rau hauv kev teb rau li niaj zaus qoj ib ce , lawv tau loj hlob ntau cov hlab ntsha los ntawm nthuav cov network ntawm capillaries. Nyob rau hauv lem, cov leeg nqaij txhawb qib qib ntawm cov enzymes uas tso cai rau lawv siv oxygen los tsim lub zog. Tseeb, qoj ib ce pab khaws cov hlab ntsha hluas.
Xav txog qhov no, cov hlab ntsha puas ntsoog thaum qoj ib ce?
Nws saib lub luag haujlwm ntawm adenosine triphosphate, lossis ATP, cov tshuaj uas tuaj yeem tso tawm los ntawm cov qe ntshav liab thiab ntseeg tias ua rau cov hlab ntshav nthuav dav. thaum qoj ib ce , thaum cov leeg xav tau oxygen ntau.
Kuj Paub, muaj dab tsi tshwm sim rau cov hlab plawv thaum lub sijhawm ua si? Nyob rau hauv ib txwm muaj mob lub cev, kab mob plawv cov ntshav ntws tau zoo sib xws nrog tus nqi ntawm myocardial oxygen siv. Yog li, thaum myocardial oxygen siv tau nce ntxiv, zoo li thaum qoj ib ce , kab mob plawv vasodilation thiab nce oxygen xa tawm yog qhov tseem ceeb los tiv thaiv myocardial underperfusion thiab ischemia.
Ib sab ntawm qhov no, ua li cas rau lub plawv thaum tawm dag zog?
Hloov mus rau plawv tus nqi thaum qoj ib ce Thaum qoj ib ce cov plawv tus nqi nce ntxiv kom cov ntshav txaus raug coj mus rau cov leeg ua haujlwm kom muab lawv nrog cov as -ham txaus thiab oxygen. Kev nce hauv plawv tus nqi kuj tseem tso cai rau cov khoom pov tseg raug tshem tawm.
Dab tsi tshwm sim rau cov hlab ntshav thaum lub sijhawm ua si?
Qoj ib ce ua rau lub plawv tso ntshav mus rau hauv kev ua kom muaj txiaj ntsig ntau dua los ntawm kev ua kom muaj zog ntau dua thiab muaj txiaj ntsig myocardial contractions, nce ntxiv cov nqaij thiab cov nruab nrog cev nrog ntshav, thiab nce kev xa oxygen.
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