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Video: Lub plawv ua lus yooj yim yog dab tsi?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov plawv yog ib lub cev nqaij daim tawv nyob rau hauv feem ntau cov tsiaj, uas tso ntshav los ntawm cov hlab ntsha ntawm lub circulatory system. Ntshav muab lub cev nrog oxygen thiab cov as-ham, nrog rau kev pab tshem tawm cov khoom pov tseg hauv metabolic. Nyob rau hauv tib neeg, lub plawv yog nyob nruab nrab ntawm lub ntsws, nyob hauv nruab nrab ntawm lub hauv siab.
Tom qab ntawd, lub siab txhais li cas yog dab tsi?
npe. Cov txhais ntawm plawv yog lub cev uas tswj cov ntshav ntws hauv lub cev, lossis qhov chaw nruab nrab ntawm tib neeg txoj kev xav. Piv txwv ntawm plawv yog lub cev pom nyob hauv lub hauv siab ntawm tib neeg.
Tom qab ntawd, lo lus nug yog, lub plawv ua haujlwm yooj yim li cas? Sab xis ntawm koj plawv tau txais cov ntshav tsis zoo los ntawm koj cov leeg thiab tso nws mus rau koj lub ntsws, qhov uas nws khaws cov pa oxygen thiab tshem tawm cov pa roj carbon dioxide. Sab laug ntawm koj plawv tau txais cov ntshav oxygen ntau los ntawm koj lub ntsws thiab tso nws hla koj cov hlab ntsha mus rau tag nrho koj lub cev.
Ib yam li ntawd, lub siab thiab nws txoj haujlwm yog dab tsi?
Cov tib neeg plawv yog ib lub cev uas tso ntshav thoob plaws cov cev via cov circulatory system, muab cov pa thiab cov as -ham rau cov cov ntaub so ntswg thiab tshem cov pa roj carbon dioxide thiab lwm yam pov tseg. "Yog [ lub siab ] tsis muaj peev xwm muab ntshav rau cov lub cev thiab cov ntaub so ntswg, lawv yuav tuag."
Lub plawv ua haujlwm piav qhia li cas?
Lub twj tso kua mis ntawm plawv yog tswj los ntawm cov xov paj tshwj xeeb uas ua cov cim hluav taws xob mus rau ntau chav. Sab xis ntawm plawv tso cov ntshav mus rau lub ntsws, qhov twg nws tau txais oxygen. Ntshav nkag mus rau sab laug ntawm tus plawv los ntawm lub cev thiab plawv nqus cov ntshav uas muaj oxygen nyob ib ncig ntawm lub cev.
Pom zoo:
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Cov tsos mob: Tu siab; Mob; Kev chim siab