Cov hlab ntsha feem ntau nqa cov ntshav oxygenated thiab cov leeg feem ntau nqa cov ntshav deoxygenated. … Txawm li cas los xij, cov hlab ntsha thiab cov hlab ntsha yog ib qho kev zam rau txoj cai no. Pulmonary veins nqa cov ntshav oxygenated mus rau lub plawv thiab cov hlab ntsha pulmonary nqa cov ntshav deoxygenated tawm ntawm lub plawv. Ntshav ib txwm liab.
Txhua cov hlab ntsha puas muaj cov ntshav oxygenated?
Txhua qhov xwm txheej, cov hlab ntsha nqa oxygen-nplua nuj ntshav. Qhov tshwj xeeb yog cov hlab ntsha pulmonary. Lawv nqa cov ntshav tsis muaj oxygen tawm ntawm lub plawv, mus rau lub ntsws, kom khaws cov pa ntau dua. Cov leeg nqa ntshav rov qab mus rau lub plawv.
Dab tsi yog cov hlab ntsha hauv lub cev uas tsis nqa oxygenated ntshav?
Lub pulmonary arteries nqa cov ntshav deoxygenated los ntawm txoj cai ventricle mus rau alveolar capillaries ntawm lub ntsws kom tshem tawm carbon dioxide thiab nqa oxygen. Cov no tsuas yog cov hlab ntsha uas nqa cov ntshav deoxygenated, thiab suav tias yog cov hlab ntsha vim tias lawv nqa cov ntshav tawm ntawm lub plawv.
Vim li cas nws tsis raug hais tias txhua cov hlab ntsha nqa oxygenated ntshav thiab tag nrho cov hlab ntsha nqa cov ntshav deoxygenated muab piv txwv vim li cas cov lus no tsis muaj tseeb?
Txhua cov hlab ntsha nqa cov ntshav oxygenated los ntawm lub plawv mus rau lub cev cov ntaub so ntswg thiab cov kabmob, thiab tag nrho cov hlab ntsha rov qab cov ntshav uas tsis muaj oxygen rov qab mus rau lub plawv. … Yog li ntxiv lo lus teb yog “tsis tseeb” vim pulmonary artery nqa cov ntshav deoxygenated tawm ntawm lub plawv thiab cov hlab ntsha pulmonary nqa cov ntshav oxygenated mus rau lub plawv.
Cov hlab ntsha puas nqa ntshav mus rau lub plawv?
Cov hlab ntsha (liab) nqa oxygen thiab cov as-ham tawm ntawm koj lub siab, mus rau koj lub cev cov ntaub so ntswg. Cov hlab ntsha (xiav) coj cov ntshav uas tsis muaj oxygen rov qab mus rau lub plawv.
