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Video: Dab tsi yog phab ntsa nqes nruab nrab ntawm lub plawv?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Ob chav nyob hauv qab yog hu ua lub ventricles (hais tias: VEN-trih-kulz). Cov plawv muaj sab laug ventricle thiab sab xis ventricle. Khiav nqes nruab nrab ntawm lub siab yog tuab phab ntsa ntawm cov leeg hu ua lub septum (hais: SEP-tum). Lub septum txoj haujlwm yog cais sab laug thiab sab xis ntawm lub plawv.
Ua li no, lub hauv paus ntawm lub plawv hu li cas?
Phab ntsa no yog hu ua lub septum. Chambers ntawm plawv . Koj plawv muaj plaub chav. Ob chav sab saud, hu ua sab laug thiab sab xis atria, thiab ob chav qis, hu ua sab laug thiab sab xis ventricles, sib cog lus nyob rau hauv ib qho tsis tu ncua hu ua koj lub plawv dhia.
Ib tus kuj yuav nug, lub plawv yog dab tsi nws txoj haujlwm thiab tus qauv? Lub siab yog ib lub cev nqaij daim tawv roughly cov qhov loj ntawm lub nrig nrig. Nws zaum hauv cov hauv siab, me ntsis rau cov sab laug ntawm qhov chaw. Raws li lub siab ntawv cog lus, nws tso ntshav ib ncig cov lub cev. Nws nqa cov ntshav deoxygenated rau cov Lub ntsws uas nws thauj khoom nrog oxygen thiab tshem tawm cov pa roj carbon dioxide, cov khoom pov tseg ntawm cov metabolism.
Ib sab saum toj, phab ntsa hauv plawv yog dab tsi?
Lub plawv phab ntsa yog ua los ntawm peb txheej: sab hauv endocardium , nruab nrab myocardium thiab sab nraud epicardium qhov chaw . Cov no tau nyob ib puag ncig los ntawm ob lub hnab ntim khoom hu ua pericardium. Cov txheej sab hauv plawv tshaj plaws yog hu ua endocardium.
Lub plawv zoo li cas?
Sab hauv, tus plawv yog plaub-chambered, hollow lub cev. Sab xis thiab sab laug ntawm lub plawv tau muab faib ua ob chav sab saum toj hu ua atria, uas tau txais cov ntshav los ntawm cov hlab ntsha, thiab ob chav hauv qab hu ua ventricles, uas tso ntshav rau hauv cov hlab ntsha.
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