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Video: Dab tsi yog coronary ncig quizlet?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov kab ke ntawm cov hlab ntshav uas ua haujlwm rau phab ntsa ntawm lub plawv, suav tias yog qhov hloov pauv feem ntau hauv Plawv Anatomy. cov coronary Cov hlab ntsha muab cov myocardium w / txog 250mL ntawm bpm uas yog 5% ntawm cov ntshav ncig mus rau cov kev xav tau ntawm lub plawv.
Ib yam li ntawd, txoj hauv kev ntawm txoj hlab plawv yog dab tsi?
Coronary ncig yog kev ncig cov ntshav nyob rau hauv cov hlab ntsha uas muab lub plawv cov leeg (myocardium). Coronary cov hlab ntsha muab cov ntshav oxygenated rau lub plawv cov leeg, thiab plawv cov hlab ntshav ntws tawm cov ntshav thaum nws tau deoxygenated.
Ib qho ntxiv, yuav ua li cas myocardium tau txais cov ntshav? Lub siab tau txais nws tus kheej muab ntawm ntshav los ntawm cov hlab ntsha coronary. Ob txoj hlab ntshav loj loj tawm los ntawm aorta ze ntawm qhov chaw uas lub aorta thiab sab laug ventricle ntsib. Cov hlab ntsha no thiab lawv cov ceg muab txhua feem ntawm qhov leeg nqaij nrog ntshav.
Ib tug kuj yuav nug, dab tsi yog lub luag haujlwm ntawm coronary ncig quizlet?
Lub coronary ncig muab cov pa ntshav mus rau lub plawv los ntawm coronary hlab ntsha. Coronary leeg rov qab los deoxygenated los ntawm lub plawv mus rau coronary sinus nyob tom qab ntawm lub plawv.
Cov hlab ntsha twg nrog rau posterior interventricular coronary artery?
nruab nrab plawv leeg
Pom zoo:
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Ib puag ncig lub cev hais txog sab nraud, ib puag ncig ib puag ncig uas lub cev muaj nyob thiab uas tuaj yeem cuam tshuam nws tus cwj pwm thiab kev txhim kho. Cov zej zog ib puag ncig muaj kev hloov pauv thiab hloov pauv nyob rau lub sijhawm vim yog kev ua haujlwm sab hauv thiab sab nraud
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Coronary hlab ntsha muab cov ntshav mus rau myocardium thiab lwm yam ntawm lub plawv. Ob lub hlab ntsha hlab ntshav pib los ntawm sab laug ntawm lub plawv thaum pib (hauv paus) ntawm lub aorta, tsuas yog tom qab lub aorta tawm ntawm lub ventricle sab laug
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Kab mob plawv mob plawv, tseem hu ua kab mob plawv mob plawv lossis kab mob plawv ischemic, kab mob tshwj xeeb los ntawm kev tsis txaus cov pa oxygen txaus rau cov leeg nqaij (myocardium) vim qhov nqaim lossis thaiv ntawm cov hlab ntshav txhaws los ntawm cov rog rog (saib atherosclerosis)
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Txoj Cai Coronary Artery (RCA) Hauv 50-60% thawj ceg ntawm RCA yog cov ceg me me, uas muab cov hlab ntsha sab xis. Hauv 20-30% cov ceg conus tshwm sim ncaj qha los ntawm aorta
OM coronary artery yog dab tsi?
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Cov hlab ntsha circumflex nkhaus mus rau sab laug nyob ib ncig ntawm lub plawv nyob rau hauv lub coronary sulcus, muab nce mus rau ib los yog ntau tshaj sab laug marginal hlab ntsha (tseem hu ua obtuse marginal ceg (OM)) raws li nws nkhaus mus rau lub posterior nto ntawm lub plawv. Nws pab tsim cov ceg ntoo sab laug tom qab lossis cov hlab ntshav posterolateral