Video: Cov hlab ntsha loj hauv plawv yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov aorta cov (cov ntshav tseem ceeb muab rau lub cev) ceg tawm mus rau hauv ob lub ntsiab coronary cov hlab ntsha (tseem hu ua cov hlab ntsha). Cov no coronary hlab ntsha ceg tawm mus rau hauv cov hlab ntsha me, uas muab cov ntshav muaj oxygen rau tag nrho lub plawv cov leeg. Txoj cai coronary hlab ntsha muab ntshav feem ntau rau sab xis ntawm lub plawv.
Hais txog qhov no, 4 lub ntsiab hlab ntsha ntawm lub plawv yog dab tsi?
Txoj hlab ntshav sab xis, sab laug lub plawv loj, sab laug sab xub ntiag nqis, thiab sab laug circumflex artery, yog plaub qhov loj coronary hlab ntsha . Kev thaiv cov hlab ntsha no yog ib qho ua rau mob angina, mob plawv, plawv nres thiab lub plawv tsis ua haujlwm.
Qhov thib ob, cov hlab ntsha tseem ceeb yog dab tsi? Lub aorta yog lub hauv paus systemic cov leeg (ie, cov hlab ntsha loj ). Hauv tib neeg, nws tau txais cov ntshav ncaj qha los ntawm sab laug ventricle ntawm lub plawv ntawm lub aortic valve. Raws li cov ceg aorta, thiab cov no cov hlab ntsha ceg nyob rau hauv lem, lawv ua successive me me nyob rau hauv txoj kab uas hla, mus rau arterioles.
Tsis tas li ntawd, muaj pes tsawg cov hlab ntsha ua rau lub plawv?
Cov plawv tau txais nws tus kheej cov ntshav los ntawm lub plawv cov hlab ntsha . Ob lub plawv loj cov hlab ntsha ceg tawm ntawm lub aorta ze ntawm qhov chaw uas lub aorta thiab sab laug ventricle sib ntsib. Cov no cov hlab ntsha thiab lawv cov ceg muab txhua feem ntawm plawv cov leeg ntshav.
Cov hlab plawv twg feem ntau raug thaiv?
LAD
Pom zoo:
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