Dab tsi yog lub luag haujlwm ntawm cov hlab ntshav?
Dab tsi yog lub luag haujlwm ntawm cov hlab ntshav?

Video: Dab tsi yog lub luag haujlwm ntawm cov hlab ntshav?

Video: Dab tsi yog lub luag haujlwm ntawm cov hlab ntshav?
Video: Koos loos 2024, Lub rau hli ntuj
Anonim

Cov circulatory system muaj peb tus neeg ywj pheej tshuab uas ua haujlwm ua ke: lub plawv (hlab plawv), lub ntsws (ntsws), thiab cov hlab ntsha, cov hlab ntshav, lub plawv thiab cov hlab ntsha portal (kev ua haujlwm). Cov lawv yog lub luag haujlwm rau cov ntshav ntws, 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.

Hauv qhov no, dab tsi yog lub luag haujlwm tseem ceeb ntawm cov hlab ntshav?

Cov cov hlab plawv muaj lub plawv, cov hlab ntsha, thiab cov ntshav. Qhov no lawv muaj peb lub luag haujlwm tseem ceeb : Thauj cov as -ham, oxygen, thiab cov tshuaj hormones mus rau cov cell thoob plaws lub cev thiab tshem tawm cov zom zaub mov pov tseg (carbon dioxide, nitrogenous pov tseg).

Ib yam li ntawd, tsib lub luag haujlwm tseem ceeb ntawm lub cev ncig yog dab tsi? Kev ua haujlwm ntawm cov hlab plawv

  • Tshaj tawm OXYGEN thiab tshem tawm cov pa roj carbon dioxide.
  • Muab cov cell nrog NUTRIENTS.
  • Tshem tawm cov khoom pov tseg ntawm cov metabolism hauv mus rau cov kabmob hauv lub cev rau kev pov tseg.
  • Tiv thaiv lub cev tiv thaiv kab mob thiab kis kab mob.
  • Los ntshav tsis ua ntshav tom qab raug mob.

Tsis tas li kom paub yog, dab tsi tswj hwm cov ntshav ncig?

Lub plawv yog lub cev tseem ceeb hauv circulatory system . Raws li lub hollow, cov leeg nqaij, nws lub luag haujlwm tseem ceeb yog ua kom cov ntshav thoob plaws lub cev. Feem ntau nws ntaus los ntawm 60 txog 100 zaug hauv ib feeb, tab sis tuaj yeem nrawm dua thaum tsim nyog.

Txoj kev ncig ntshav ua tau raws li peb cov kev xav tau yooj yim li cas?

Txhua lub cell hauv lub cev xav tau kom muaj oxygen thiab cov as -ham, thiab lawv xav tau lawv cov khib nyiab tshem tawm. Cov no yog cov lub ntsiab role of cov circulatory system . Siv lub network ntawm cov hlab ntsha, cov leeg thiab cov hlab ntsha, ntshav nqa cov pa roj carbon dioxide mus rau lub ntsws (rau kev ua pa) thiab khaws cov pa oxygen.

Pom zoo: