![Cov hlab ntsha hlab ntsha thiab cov hlab ntshav muaj dab tsi? Cov hlab ntsha hlab ntsha thiab cov hlab ntshav muaj dab tsi?](https://i.answers-medical.com/preview/medical-health/13989263-what-do-arteries-veins-and-capillaries-have-in-common-j.webp)
Video: Cov hlab ntsha hlab ntsha thiab cov hlab ntshav muaj dab tsi?
![Video: Cov hlab ntsha hlab ntsha thiab cov hlab ntshav muaj dab tsi? Video: Cov hlab ntsha hlab ntsha thiab cov hlab ntshav muaj dab tsi?](https://i.ytimg.com/vi/HnZKKWzXsDI/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov hlab ntsha nqa ntshav tawm ntawm lub plawv; lub ntsiab cov leeg yog aorta. Capillaries nqa ntshav tawm ntawm lub cev thiab pauv cov khoom noj, pov tseg, thiab oxygen nrog cov ntaub so ntswg ntawm qib cellular. Cov leeg yog cov hlab ntsha uas coj cov ntshav rov qab mus rau lub plawv thiab tso ntshav los ntawm lub cev thiab cov ceg.
Ib yam nkaus, dab tsi yog qhov zoo sib xws ntawm cov hlab ntsha leeg thiab cov hlab ntsha?
Cov cov hlab ntsha tom qab ntawd muab cov ntshav pov tseg rau hauv leeg rau kev thauj rov qab mus rau lub ntsws thiab lub plawv. Cov leeg nqa cov ntshav rov mus rau lub plawv. Lawv zoo ib yam li cov hlab ntsha tab sis tsis muaj zog lossis tuab li. Tsis zoo li cov hlab ntsha , leeg muaj li qub uas ua kom cov ntshav ntws mus rau ib qho nkaus xwb.
Ib yam nkaus, ntshav siab txawv li cas hauv cov hlab ntsha capillaries thiab leeg ntshav? Ntshav Lub Nkoj: ncig lub Ntshav Arterioles txuas nrog txawm tias me me ntshav nkoj npe cov hlab ntsha . Cov leeg thiab venules muaj ntau thinner, cov leeg nqaij tsawg dua cov hlab ntsha thiab arterioles, feem ntau vim yog siab nyob rau hauv leeg thiab venules yog qis dua. Cov leeg tej zaum yuav dilate kom haum rau nce ntshav ntim.
Ib qho ntxiv, txoj haujlwm ntawm cov hlab ntsha hlab ntshav thiab cov hlab ntshav yog dab tsi?
Cov hlab ntsha ntws ntshav thoob plaws lub cev. Cov hlab ntsha thauj ntshav tawm ntawm lub plawv. Cov leeg xa ntshav rov mus rau lub plawv. Capillaries puag ncig lub cev lub cev thiab cov ntaub so ntswg kom xa thiab nqus oxygen, cov as -ham, thiab lwm yam tshuaj.
Puas yog ntshav siab qis hauv cov hlab ntsha lossis leeg?
Cov siab ntawm ntshav rov qab mus rau lub plawv yog tsawg heev, yog li cov phab ntsa ntawm leeg muaj ntau thinner dua cov hlab ntsha. Capillaries yog me me ntshav cov hlab ntsha uas txuas cov hlab ntsha thiab leeg . Lawv cov phab ntsa yog nyias heev.
Pom zoo:
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Hom hlab ntsha Capillaries yog feeb nyias-walled hlab ntsha uas txuas cov hlab ntsha thiab venules; Nws yog los ntawm cov capillaries uas cov as-ham thiab cov pov tseg tau pauv ntawm cov ntshav thiab cov ntaub so ntswg ntawm lub cev
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Piav qhia: Cov hlab ntshav nqa ntshav nyob hauv siab los ntawm lub plawv mus rau cov kabmob thiab cov nqaij. Lawv cov phab ntsa feem ntau yog tuab dua li cov leeg. Capillaries yog qhov sib txuas ntawm cov hlab ntsha thiab cov leeg thiab me me heev, Cov ntaub so ntswg qee zaum pom tawm thiab rov nco qab los ntawm cov qog ntshav thiab rov qab los rau cov leeg ntshav
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Cov leeg yuav tsum tau li qub kom cov ntshav ntws mus rau lub plawv. Theses li qub yog qhov tshwj xeeb hauv ob txhais ceg thiab caj npab. Lawv tawm tsam lub ntiajteb txawj nqus los tiv thaiv cov ntshav rov qab los. Cov hlab ntsha tsis xav tau li qub vim tias lub siab los ntawm lub plawv ua kom cov ntshav ntws los ntawm lawv mus rau ib qho
Dab tsi yog cov hlab ntsha thiab cov hlab ntsha capillaries?
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Cov hlab ntsha nqa ntshav tawm ntawm lub plawv; Lub ntsiab hlab ntsha yog aorta. Capillaries nqa ntshav tawm ntawm lub cev thiab pauv cov as-ham, pov tseg, thiab oxygen nrog cov ntaub so ntswg ntawm qib cellular. Cov leeg ntshav yog cov hlab ntshav uas coj cov ntshav rov qab los rau hauv lub plawv thiab tso ntshav tawm ntawm cov kabmob thiab cov ceg