Kev ua pa sab nraud yog kev sib pauv ntawm cov pa nrog rau ib puag ncig sab nraud, thiab tshwm sim hauv alveoli ntawm lub ntsws. Kev ua pa sab hauv yog kev sib pauv ntawm cov pa roj nrog rau qhov chaw sab hauv, thiab tshwm sim hauv cov ntaub so ntswg. Qhov sib pauv ntawm cov pa tiag tiag tshwm sim vim qhov yooj yim diffusion.
Kev ua pa sab nraud tshwm sim nyob qhov twg?
Kev ua pa sab nraud tshwm sim hauv the alveoli; pH siab dua thiab qhov kub thiab txias; oxygen diffuses los ntawm alveoli mus rau hauv cov ntshav thiab carbon dioxide diffuses los ntawm cov ntshav mus rau qhov chaw alveolar rau tas sij hawm.
Kev ua pa sab nraud tshwm sim li cas?
Kev ua pa sab nraud, tseem hu ua ua pa, koom nrog ob qho tib si nqa cua mus rau hauv lub ntsws (qhov nqus pa) thiab tso pa tawm mus rau qhov chaw (exhalation). Thaum lub sij hawm ua pa sab hauv, oxygen thiab carbon dioxide pauv ntawm cov hlwb thiab cov hlab ntsha.
Lub chaw tseem ceeb ntawm kev ua pa sab nraud yog dab tsi?
Kev ua pa sab nraud tshwm sim hauv lub ntswsqhov twg oxygen diffuses rau hauv cov ntshav thiab carbon dioxide diffuses rau hauv huab cua alveolar. Kev ua pa sab hauv tshwm sim nyob rau hauv cov ntaub so ntswg metabolizing, qhov twg oxygen diffuses tawm ntawm cov ntshav thiab carbon dioxide diffuses tawm ntawm lub hlwb.
Qhov chaw ntawm kev ua pa sab nraud ntawm cov tsiaj nyeg yog dab tsi?
Kev ua pa sab nraud, feem ntau hu ua ua pa, yog kev sib pauv ntawm oxygen thiab carbon dioxide ntawmtsiaj thiab nws ib puag ncig. Cov tsiaj feem ntau siv cov kab mob tshwj xeeb lossis cov kab mob hauv nruab nrog cev, xws li raws li lub ntsws, trachea, lossis gills, rau kev ua pa sab nraud.
