Video: Dab tsi tshwm sim thaum isovolumetric ventricular contraction?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hauv plawv physiology, isovolumetric contraction yog ib qho xwm txheej tshwm sim thaum ntxov systole thaum koj e lub ntsws daim ntawv cog lus nrog tsis muaj qhov hloov pauv hloov pauv (isovolumetrically). Qhov luv luv no feem ntawm lub voj voog ntawm lub plawv qhov chaw thaum tag nrho lub plawv li qub raug kaw.
Tib neeg kuj nug, lub hom phiaj ntawm isovolumetric contraction yog dab tsi?
Cov isovolumetric contraction ua rau sab laug ventricular siab nce siab dua atrial siab, uas kaw lub mitral valve thiab tsim thawj lub suab nrov. Lub aortic valve qhib thaum kawg ntawm isovolumetric contraction Thaum sab laug ventricular siab tshaj aortic siab.
Tsis tas li, dab tsi tshwm sim thaum lub ventricular diastole? Ventricular diastole yog lub sijhawm thaum qe ob lub ntsws yog so los ntawm contortions / wringing ntawm contraction, ces dilating thiab sau; atrial diastole yog lub sijhawm thaum uas ob lub atria zoo li no yog so nyob rau hauv suction, dilating, thiab filling.
Ib qho ntxiv, yuav muaj dab tsi tshwm sim rau lub siab lub ntsws thiab ntim thaum lub isovolumetric contraction?
Siab & Ntim : AV valves kaw thaum twg cov siab hauv cov lub ntsws (liab) tshaj qhov siab hauv lub atria (daj). Raws li cov lub ntsws daim ntawv cog lus isovolumetrically - lawv ntim tsis hloov (dawb) - tus siab sab hauv nce, nce lub siab hauv aorta thiab pulmonary hlab ntsha (ntsuab).
Isovolumetric ventricular so yog dab tsi?
Isovolum so kom txaus lub sijhawm (IVRT) yog lub sijhawm luv hauv lub plawv dhia, los ntawm aortic tivthaiv ntawm lub suab thib ob lub suab, uas yog, kaw lub aortic valve, kom pib ua kom puv los ntawm qhib lub mitral valve. Nws tuaj yeem siv los ua qhov ntsuas ntawm kev ua haujlwm diastolic.
Pom zoo:
Dab tsi tshwm sim thaum lub ventricular diastole?
Ventricular diastole yog lub sijhawm uas ob lub ventricles tau so los ntawm kev sib tw/wringing ntawm contraction, tom qab ntawd nthuav dav thiab txhaws; atrial diastole yog lub sijhawm uas ob lub atria zoo ib yam tau so hauv qab nqus, nthuav dav, thiab txhaws
Dab tsi tshwm sim thaum lub ventricular systole?
Thaum lub ventricular systole, siab nce nyob rau hauv lub ventricles, tso ntshav mus rau hauv lub ntsws ntsws los ntawm txoj cai ventricle thiab mus rau hauv aorta los ntawm sab laug ventricle
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Dab tsi tshwm sim thaum isovolumetric ventricular so?
Qhov isovolumetric contraction ua rau sab laug ventricular siab kom siab dua atrial siab, uas kaw lub mitral valve thiab tsim thawj lub suab nrov. Lub aortic valve qhib qhov kawg ntawm isovolumetric contraction thaum sab laug ventricular siab tshaj aortic siab
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