Capillaries txuas cov hlab ntsha mus rau cov leeg. Cov hlab ntsha xa cov ntshav oxygen nplua nuj mus rau cov hlab ntsha, qhov twg qhov sib pauv ntawm cov pa thiab carbon dioxide tshwm sim. Cov capillaries tom qab ntawd xa cov ntshav pov tseg uas nplua nuj mus rau cov leeg kom thauj rov qab mus rau lub ntsws thiab lub plawv. Cov leeg nqa ntshav rov qab mus rau lub plawv.
Cov qauv ntawm cov hlab ntsha thiab cov hlab ntsha cuam tshuam li cas rau lawv txoj haujlwm?
Cov hlab ntsha ntws cov ntshav thoob plaws lub cev. Cov hlab ntsha thauj cov ntshav tawm ntawm lub plawv. Vim ntshav rov qab mus rau lub siab. Capillaries ncig lub cev hlwb thiab cov ntaub so ntswg kom xa thiab nqus oxygen, as-ham, thiab lwm yam khoom.
Puas yog cov hlab ntsha lossis cov hlab ntsha?
Capillaries yog me me, cov hlab ntsha nyias uas txuas cov hlab ntsha thiab cov leeg. Lawv cov phab ntsa nyias tso cai rau cov pa oxygen, cov as-ham, carbon dioxide thiab cov khoom pov tseg kom dhau mus thiab los ntawm cov ntaub so ntswg.
Cov hlab ntsha thiab cov hlab ntsha hu ua dab tsi?
A hlab ntsha yog lub raj uas nqa ntshav. Oxygen nplua nuj ntshav tawm sab laug ntawm lub plawv thiab nkag mus rau aorta. Lub aorta ceg mus rau hauv cov hlab ntsha, uas nws thiaj li ceg mus rau hauv me me arterioles. Arterioles nqa ntshav thiab oxygen mus rau hauv cov hlab ntsha me tshaj plaws, cov hlab ntsha.
Capillaries cuam tshuam nrog cov hlab ntsha li cas?
Cov alveoli yog ib puag ncig los ntawm cov ntshav me mecov hlab ntsha, hu ua capillaries. Cov alveoli thiab capillaries ob leeg muaj cov phab ntsa nyias heev, uas tso cai rau cov pa oxygen dhau ntawm alveoli mus rau cov ntshav. Cov capillaries ces txuas mus rau cov hlab ntsha loj, hu ua veins, uas coj cov ntshav oxygenated los ntawm lub ntsws mus rau lub plawv.
