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Video: Dab tsi yog ventricular musculature?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Plawv nqaij (tseem hu ua plawv nqaij los yog myocardium) yog ib ntawm peb hom kab mob vertebrate nqaij , nrog rau ob qho ntxiv yog pob txha thiab du nqaij . Nws yog ib qho tsis pub leej twg paub, tawm tsam nqaij uas yog cov ntaub so ntswg tseem ceeb ntawm phab ntsa hauv plawv.
Xav txog qhov no, yuav muaj dab tsi tshwm sim thaum lub plab hlaub qis?
Cov lub ntsws pib cog lus ( lub ntsws systole), nce siab hauv lub ntsws . Thaum twg lub ntsws siab nce siab tshaj qhov siab hauv atria, ntshav ntws mus rau atria, ua thawj lub suab nrov, S.1 lub lub.
Ib sab saum toj no, lub ventricle ua dab tsi? A lub plawv yog ib ntawm ob chav loj mus rau hauv qab ntawm lub plawv uas sau thiab tshem tawm cov ntshav tau txais los ntawm lub atrium mus rau lub txaj nyob ib sab hauv lub cev thiab lub ntsws. Lub atrium (chav nyob ib sab/sab saud lub plawv uas me dua li a lub plawv ) primes lub twj tso kua mis.
Hais txog qhov no, txoj haujlwm ntawm sab laug ventricle yog dab tsi?
Los ntawm qhov ntawd, cov ntshav raug tso tawm los ntawm aortic valve mus rau hauv aortic koov thiab txuas mus rau qhov seem ntawm lub cev . Lub ventricle sab laug yog tuab tshaj ntawm lub plawv chav thiab yog lub luag haujlwm rau kev tso dej cov pa ntshav rau cov ntaub so ntswg thoob plaws lub cev . Ntawm qhov tsis sib xws, txoj hlab ntshav sab xis tso cov ntshav mus rau lub ntsws.
Vim li cas sab laug ventricle tuab dua li lub ventricle sab xis?
Cov lub ntsws ntawm lub plawv muaj tuab nqaij leeg tshaj cov atria. Cov sab laug ventricle kuj muaj a tuab nqaij leeg tshaj cov txoj cai ventricle , raws li pom hauv daim duab uas nyob ib sab. Qhov no yog vim muaj zog ntau dua uas xav tau los tso ntshav los ntawm cov kab ke hauv lub cev (ib puag ncig lub cev) piv rau cov kab mob ntsws.
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