![Dab tsi tshwm sim thaum isovolumetric ventricular so? Dab tsi tshwm sim thaum isovolumetric ventricular so?](https://i.answers-medical.com/preview/medical-health/13960367-what-happens-during-isovolumetric-ventricular-relaxation-j.webp)
Video: Dab tsi tshwm sim thaum isovolumetric ventricular so?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov isovolumetric kev cog lus ua rau sab laug lub ntsws siab kom 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 lub ntsws siab tshaj siab aortic.
Ib yam li ntawd, nws raug nug, dab tsi tshwm sim thaum lub sijhawm so isovolumetric?
Hauv plawv physiology, isovolumetric kev cog lus yog ib qho xwm txheej tshwm sim thaum ntxov systole thaum uas lub ventricles cog lus nrog tsis muaj qhov hloov pauv ntim (isovolumetrically). Qhov no luv luv-ntev feem ntawm lub plawv voj voog qhov chaw thaum tag nrho lub plawv kaw.
Ib sab saum toj no, puas yog txhua lub pob kaw thaum lub sijhawm isovolumetric so? Txhua Li Qub Kaw Thaum lub zog intraventricular poob txaus thaum kawg ntawm theem 4, aortic thiab pulmonic li qub sai li sai tau kaw (aortic precedes pulmonic) ua rau lub plawv thib ob (S2) thiab qhov pib ntawm isovolumetric so kom txaus.
Ib yam nkaus, isovolumetric ventricular so yog dab tsi?
Isovolum so kom txaus Lub sij hawm (IVRT) yog ib lub sij hawm nyob rau hauv lub plawv voj voog, los ntawm lub aortic tivthaiv ntawm lub plawv thib ob lub suab, uas yog, kaw lub aortic valve, mus rau qhov pib ntawm txhaws los ntawm qhib lub mitral valve. Nws tuaj yeem siv los ua ib qho kev qhia ntawm diastolic tsis ua haujlwm.
Dab tsi tshwm sim thaum lub ventricular diastole?
Ventricular diastole yog lub sijhawm thaum qe ob ventricles yog so los ntawm qhov contortions/wringing ntawm contraction, tom qab ntawd dilating thiab txhaws; atrial siab diastole yog lub sijhawm thaum uas ob lub atria zoo li no yog so nyob rau hauv suction, dilating, thiab filling.
Pom zoo:
Dab tsi tshwm sim thaum lub ventricular diastole?
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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?
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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
Dab tsi yog qhov tshwm sim tshwm sim ntawm tus neeg sawv cev tiv thaiv anginal?
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Mob taub hau yog qhov tshwm sim feem ntau ntawm nitrates; feem ntau cuam tshuam nrog koob tshuaj thiab tshaj tawm txog li 82% ntawm cov neeg mob hauv kev sim tshuaj tswj cov placebo. Ze li 10% ntawm cov neeg mob tsis tuaj yeem tiv taus nitrates vim ua rau mob taub hau lossis kiv taub hau
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Cov tshuaj bronchodilators tuaj yeem muaj cov kev mob tshwm sim zoo li no: Ntshai lossis tshee tshee. Nce lub plawv dhia los yog palpitations. Chim plab. Teeb meem pw tsaug zog. Cov leeg mob los yog cramps
Dab tsi tshwm sim thaum isovolumetric ventricular contraction?
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Nyob rau hauv lub plawv physiology, isovolumetric contraction yog ib qho kev tshwm sim tshwm sim nyob rau hauv thaum ntxov systole thaum lub sij hawm lub ventricles daim ntawv cog lus nrog tsis sib thooj ntim hloov (isovolumetrically). Qhov luv luv ntawm lub voj voog ntawm lub plawv no tshwm sim thaum txhua lub plawv li qub raug kaw