2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov hlab ntsha (liab) nqa oxygen thiab cov as-ham tawm ntawm koj lub siab, rau koj lub cev cov ntaub so ntswg. Cov hlab ntsha (xiav) coj cov ntshav tsis muaj oxygen rov qab mus rau lub plawv. Cov hlab ntsha pib nrog lub aorta, cov hlab ntsha loj tawm hauv plawv. Lawv nqa cov ntshav uas muaj oxygen tawm ntawm lub plawv mus rau tag nrho lub cev nqaij daim tawv.
Cov hlab ntsha puas xa ntshav?
Lub Cev Lub Cev
thoob plaws hauv lub cev, cov hlab ntsha (liab liab) xa oxygenated ntshav thiab cov as-ham rau tag nrho lub cev cov ntaub so ntswg, thiab cov leeg (hauv xiav) rov qab cov ntshav tsis muaj oxygen rov qab mus rau lub plawv. Lub aorta yog cov hlab ntsha loj uas tawm hauv lub siab.
Puas ntshav mus rau cov hlab ntsha lossis cov leeg ua ntej?
Cov hlab ntsha: Cov Ntshav
Los ntawm cov phab ntsa nyias ntawm cov hlab ntsha, oxygen thiab cov as-ham nkag los ntawm cov ntshav mus rau hauv cov ntaub so ntswg, thiab cov khoom pov tseg dhau los ntawm cov ntaub so ntswg mus rau hauv cov ntshav. Los ntawm cov hlab ntsha, cov ntshav nkag mus rau hauv venules, ces mus rau veins rov mus rau lub plawv.
ntshav tawm ntawm cov hlab ntsha mus rau cov leeg li cas?
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 mam li xa cov ntshav uas nplua nuj mus rau cov hlab ntsha kom thauj rov qab mus rau lub ntsws thiab lub plawv.
Yuav ua li cas cov hlab ntsha thinnest hu ua?
Capillaries yog cov hlab ntsha me tshaj plaws hauv lub cev. Lawv tau txais cov ntshav los ntawm cov hlab ntshathiab tsim cov tes hauj lwm hu ua capillary txaj, uas yog qhov chaw uas cov pa roj sib pauv thiab cov as-ham thiab lwm yam khoom raug pauv rau cov khoom pov tseg nrog cov ntaub so ntswg.
Pom zoo:
Cov hlab ntsha twg yog siv los sau ntshav?
The median cubital and cephalic vein cephalic vein Nyob rau hauv tib neeg lub cev, lub cephalic leeg yog ib tug superficial vein nyob rau hauv caj npab. Nws sib txuas lus nrog cov hlab ntsha basilic ntawm qhov nruab nrab cubital leeg ntawm lub luj tshib thiab nyob rau hauv lub fascia superficial raws anterolateral nto ntawm lub biceps.
Cov hlab ntsha puas muaj cov ntshav muaj oxygen?
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 tsis muaj oxygen rov qab mus rau lub plawv. Cov hlab ntsha pib nrog lub aorta, cov hlab ntsha loj tawm hauv plawv.
Thaum cov kab mob kab mob nkag mus rau hauv cov hlab ntsha?
Kev kis kab mob nrog cov kab mob tsis tas ua rau kab mob. Kev kis kab mob tshwm sim thaum cov kab mob, kab mob, lossis lwm yam kab mob nkag mus rau hauv koj lub cev thiab pib sib kis. Kab mob tshwm sim thaum cov hlwb hauv koj lub cev puas lawm vim yog kis kab mob thiab cov tsos mob thiab cov tsos mob tshwm sim.
Puas yog cov hlab ntshav thiab cov hlab plawv zoo ib yam?
Cov kab mob plawv yog qee zaum hu ua ntshav-vascular, lossis tsuas yog cov hlab ntshav, system. Nws muaj lub plawv, uas yog cov khoom siv lub cev, thiab lub kaw lus kaw ntawm cov hlab ntsha hu ua cov hlab ntsha, cov hlab ntsha, thiab cov hlab ntsha.
Puas yog cov hlab ntsha loj dua cov hlab ntsha?
Arterioles nqa ntshav thiab oxygen mus rau hauv cov hlab ntsha me tshaj plaws, cov hlab ntsha. Capillaries yog li ntawd small lawv tsuas pom tau nyob hauv lub tshuab tsom. Cov phab ntsa ntawm capillaries yog permeable rau oxygen thiab carbon dioxide.
