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Video: Koj yuav qhia tau li cas ntawm cov leeg ntshav?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Thawj qhov sib txawv ntawm cov hlab ntsha thiab leeg yog txoj haujlwm uas lawv ua. Cov hlab ntsha nqa cov pa oxygen tawm ntawm lub plawv mus rau lub cev, thiab leeg nqa cov ntshav tsis zoo rov qab los ntawm lub cev mus rau lub plawv. Koj lub cev kuj muaj lwm yam, cov hlab ntshav me dua.
Raws li, koj tuaj yeem qhia qhov sib txawv ntawm cov leeg thiab cov leeg?
Cov hlab ntsha yog cov hlab ntshav lub luag haujlwm nqa cov ntshav uas muaj oxygen nyob deb ntawm lub plawv mus rau lub cev. Cov leeg yog cov hlab ntshav uas nqa cov ntshav qis hauv oxygen los ntawm lub cev rov mus rau lub plawv rau reoxygenation.
Ib yam li ntawd, cov hlab ntsha hloov mus rau cov hlab ntsha? Hloov pauv cov leeg rau cov hlab ntsha Zoo li txhua lub cev hauv lub cev, leeg muaj lub hauv paus txheej txheem hu ua extracellular matrix. Cov 'scaffolds' no tso cai rau cov cell sib cuam tshuam thiab tsim cov nqaij ua haujlwm. Lub raj muaj a cov leeg 'scaffold' tom qab cov hlab ntshav tawm.
Yooj yim, yuav ua li cas kuv thiaj li nco tau kuv cov hlab ntsha thiab cov leeg?
Cov hlab ntsha nqa cov ntshav oxygenated los ntawm lub plawv, thaum leeg nqa cov ntshav uas tsis muaj oxygen rov mus rau lub plawv. Ib qho yooj yim mnemonic yog "A rau" cov leeg 'thiab' deb '(los ntawm lub siab). "(Cov kev zam rau txoj cai dav dav no yog cov hlab ntsws.
Cov hlab ntsha thiab cov leeg ua haujlwm li cas?
Cov cov hlab ntsha nqa ntshav tawm ntawm lub plawv; cov leeg nqa nws rov mus rau lub plawv. Cov ntshav mus los ntawm lub ntsiab cov leeg kom loj dua thiab me dua cov hlab ntsha thiab nkag mus rau hauv capillary network. Muaj cov ntshav tso tawm cov pa oxygen, cov khoom noj thiab lwm yam khoom tseem ceeb thiab khaws cov pa roj carbon dioxide thiab cov khoom pov tseg.
Pom zoo:
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Lub cerebellum (nraub qaum ntawm lub hlwb) nyob tom qab ntawm lub taub hau. Nws txoj haujlwm yog txhawm rau tswj kev txav mus los ntawm cov leeg nqaij thiab tswj lub cev, sib npaug, thiab sib npaug
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Tshwj xeeb, thaum zaws cov leeg leeg koj yuav tsum tau paub txog: Mob leeg nruj - zaws yuav tsum tsis siv rau cov leeg nqaij tsis ntev los no. Nyob rau thawj 24 mus rau 72 teev tom qab ib tug calf strain appying massage yuav ua rau koj raug mob hnyav, ua kom los ntshav thiab tiv thaiv kom zoo
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Striated leeg nqaij yog cov nqaij leeg uas ua haujlwm rov ua haujlwm hu ua sarcomeres. Lub xub ntiag ntawm sarcomeres tshwm sim raws li cov kab uas pom pom ntawm cov leeg nqaij, uas yog lub luag haujlwm rau qhov tshwm sim zoo li pom hauv cov duab me me ntawm cov ntaub so ntswg
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Cov ntshav yog cov kua ntshav tom qab cov qe ntshav thiab cov protein sib xyaw tau raug tshem tawm. cov pa roj ntshav suav nrog oxygen, carbon dioxide, thiab nitrogen