Cov txheej txheem:
Video: Cov ntaub so ntswg ua dab tsi hauv cov hlab ntshav?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Lub circulatory system
- Cov kab mob sib kis yog lub network muaj cov ntshav, cov hlab ntshav, thiab lub plawv.
- Lub plawv yog ua los ntawm cov leeg nqaij tshwj xeeb hauv lub plawv uas tso cai rau nws ua lub twj tso kua mis hauv cov hlab ntshav.
- Cov tib neeg lub siab tau muab faib ua plaub chav.
- Tib neeg txoj hlab ntshav muaj ntau yam kev sib tw:
Ib qho ntxiv, cov ntaub so ntswg thiab lub cev ua dab tsi ua rau cov hlab ntshav khiav?
Kev ncig ua haujlwm muaj peb yam kev ywj pheej uas ua haujlwm ua ke: lub plawv (hlab plawv), lub ntsws (ntsws), thiab cov hlab ntsha, cov hlab ntsha, cov hlab plawv thiab cov hlab ntsha (cov kab ke). Lub kaw lus yog lub luag haujlwm rau cov ntshav, cov khoom noj khoom haus, cov pa oxygen thiab lwm yam roj cua, thiab ntxiv rau cov tshuaj hormones rau thiab los ntawm cov cell.
Kuj Paub, dab tsi yog 5 ntu ntawm cov hlab ntsha? Cov no yog lub luag haujlwm tseem ceeb ntawm circulatory system . Lub plawv, ntshav thiab cov hlab ntshav ua haujlwm ua ke los pab cov hlwb ntawm lub cev.
Ntawm nplooj ntawv no:
- Ntshav.
- Plawv.
- Sab xis ntawm lub plawv.
- Sab laug ntawm lub plawv.
- Cov hlab ntsha.
- Cov hlab ntsha.
- Capillaries.
- Cov leeg.
Qhov thib ob, cov ntaub so ntswg zoo li cas hauv cov hlab ntshav?
Cov kab ke hauv lub cev muaj cov hlab ntsha thiab cov leeg ntshav, microvessels, cov hlab ntshav, thiab plawv . Txhua yam yog kab los ntawm qhov yooj yim squamous epithelium, endothelium.
Dab tsi yog hom sib txawv ntawm cov cell hauv cov hlab ntshav?
Ntshav tau ua los ntawm cov ntshav feem ntau, tab sis 3 hom tseem ceeb ntawm cov ntshav xa mus nrog cov ntshav:
- Platelets pab cov ntshav kom khov. Kev txhaws ua kom cov ntshav tsis ntws tawm ntawm lub cev thaum cov hlab ntsha lossis cov hlab ntsha tawg.
- Cov qe ntshav liab nqa cov pa.
- Cov qe ntshav dawb tiv thaiv kab mob.
Pom zoo:
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