Lub tshuab ua pa hluav taws xob yog cov cuab yeej kho mob uas txuas tus neeg mob mus rau lub tshuab ua pa tshuab, tso cai rau kev xa cov pa oxygen thiab tshem tawm cov pa roj carbon dioxide.Nws muaj ntau yam khoom siv, suav nrog cov raj ua pa, cov khoom sib txuas, thiab cov lim dej, uas ua kom muaj kev nyab xeeb thiab ua haujlwm tau zoo ntawm huab cua mus rau tus neeg mob lub ntsws.Cov raj feem ntau yog ua los ntawm cov khoom siv hnyav, hloov tau yooj yim thiab tuaj yeem sib txawv kom haum rau cov neeg mob uas muaj hnub nyoog sib txawv thiab ntau thiab tsawg.Cov khoom sib txuas pab txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhaws.Cov lim dej yog qhov tseem ceeb los tshem tawm cov impurities lossis kab mob los ntawm huab cua, txo qhov kev pheej hmoo ntawm kev kis kab mob.Lub tshuab ua pa tau dav siv hauv tsev kho mob, chaw kho mob, thiab chav kho mob ceev rau cov neeg mob uas muaj kev nyuaj siab ua pa vim muaj mob hnyav lossis raug mob.
