Cov hlab ntsha (liab) yog cov hlab ntsha uas xa cov ntshav mus rau lub cev. Cov leeg (hauv xiav) yog cov hlab ntsha uas rov qab los rau lub plawv.
Puas cov leeg xiav lossis liab hauv daim duab?
Txawm hais tias cov leeg yog feem ntau piav raws li xiav hauv daim duab kho mob thiab qee zaum tshwm xiav ntawm daim tawv nqaij daj ntseg, lawv tsis yog xim xiav. Lub teeb cuam tshuam nrog cov tawv nqaij thiab cov ntshav deoxygenated, uas yog ib qho ntxoov ntxoo ntawm liab, kom pom lub suab xiav.
Puas cov hlab ntsha feem ntau liab lossis xiav?
Vim cov hlab ntsha nqa cov ntshav uas muaj oxygen tawm ntawm lub plawv thiab cov hlab ntsha nqa cov ntshav uas tsis muaj oxygen rov qab mus rau lub plawv, qee cov neeg ntseeg tias cov hlab ntsha tuaj yeem xiav vim cov ntshav tsis muaj oxygen yog xiav. Tab sis nws tsis muaj tseeb! ntshav ib txwm liab.
Puas cov leeg ib txwm xiav hauv daim duab?
Cov hlab ntsha tsis xiav Lawv tsuas saib xiav vim tias thaum lub teeb ntawm lub teeb cuam tshuam koj cov tawv nqaij thiab cov leeg, qee qhov teeb pom kev zoo, thiab qee qhov rov qab los ntawm koj. Lub teeb xiav tsis tuaj yeem nkag mus rau ntawm daim tawv nqaij nrog rau lub teeb liab, thiab ntau dua xiav wavelengths tau rov qab los ntawm koj dua li liab wavelengths.
Puas cov hlab ntsha feem ntau liab?
Cov ntshav Arterial yog cov ntshav oxygenated nyob rau hauv cov hlab ntsha uas muaj nyob rau hauv cov hlab ntsha pulmonary, sab laug ntawm lub plawv, thiab cov hlab ntsha. Nws yog xim liab ci, thaum cov ntshav venous yog xim liab tsaus (tab sis zoo li ntshav ntawm daim tawv nqaij translucent).
