Cov hlwb tsim nyob rau hauv cov pob txha pob txha thiab ncig li 100-120 hnub hauv lub cev ua ntej lawv cov khoom siv los ntawm macrophages. Txhua lub voj voog yuav siv li 60 vib nas this (ib feeb). Kwv yees li 84% ntawm cov hlwb hauv tib neeg lub cev yog 20 –30 trillion cov qe ntshav liab.
cov qe ntshav liab ncig qhov twg?
Tom qab tawm hauv lub siab, cov qe ntshav liab mus dhau cov hlab ntsha hauv lub ntsws mus rau lub ntswsNws khaws cov pa ua rau cov ntshav liab deoxygenated tam sim no yog cov qe ntshav oxygenated. Cov ntshav tom qab ntawd ua rau nws rov qab mus rau lub plawv ntawm cov hlab ntsha pulmonary mus rau sab laug atrium.
Cov qe ntshav liab nyob rau hauv cov hlab ntsha yog dab tsi?
Lub luag haujlwm tseem ceeb ntawm cov qe ntshav liab, lossis erythrocytes, yog nqa oxygen los ntawm lub ntsws mus rau lub cev cov ntaub so ntswg thiab carbon dioxide ua cov khoom pov tseg, deb ntawm cov ntaub so ntswg thiab rov qab mus rau lub ntsws. Hemoglobin (Hgb) yog cov protein tseem ceeb hauv cov qe ntshav liab uas nqa oxygen los ntawm lub ntsws mus rau txhua qhov ntawm peb lub cev.
Cov qes dab tsi nyob hauv cov ntshav?
Ntshav yog tsim los ntawm cov ntshav plasma, tab sis 3 lub ntsiab ntawm cov qe ntshav ncig nrog cov ntshav:
- Platelets pab cov ntshav txhaws. Clotting nres cov ntshav los ntawm lub cev thaum cov hlab ntsha lossis cov hlab ntsha tawg. …
- qe ntshav liab nqa oxygen. …
- cov qe ntshav dawb tiv thaiv kab mob.
Pob cov ntshav tsim cov qe ntshav tshiab?
Raws li cov ntshav taug kev hauv lub cev, hemoglobin tso tawm oxygen mus rau lwm lub cev. Txhua RBC nyob li ntawm 4 lub hlis. Txhua hnub, lub cev tsim RBCs tshiab los hloov cov neeg tuag lossis ploj ntawm lub cev.
