![Lub plawv thiab cov hlab ntsha yog dab tsi? Lub plawv thiab cov hlab ntsha yog dab tsi?](https://i.answers-medical.com/preview/medical-health/13880504-what-is-the-heart-blood-and-vessels-j.webp)
Video: Lub plawv thiab cov hlab ntsha yog dab tsi?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov hlab ntsha loj txuas rau koj lub plawv yog aorta cov , superior vena cava, qis vena cava, mob ntsws cov leeg (uas siv cov ntshav tsis zoo los ntawm lub plawv mus rau lub ntsws uas nws tau oxygenated), cov hlab ntsws (uas nqa cov ntshav muaj oxygen ntau los ntawm lub ntsws mus rau lub plawv), thiab lub plawv
Ntawm no, dab tsi ua haujlwm ntawm lub plawv thiab cov hlab ntshav?
Lub plawv lub luag haujlwm yog txhawm rau tso ntshav cov pa oxygen ntau rau txhua lub cell hauv lub cev . Cov hlab ntshav - lub network sib txuas ntawm cov hlab ntsha, cov hlab ntsha, cov hlab ntshav, cov hlab ntshav, thiab cov leeg - muab txoj hauv kev uas cov ntshav mus.
Ib sab saum toj, dab tsi yog lub nkoj hauv plawv? Cov Lub plawv thiab Ntshav Lub nkoj Liab loj lub nkoj (aorta) - Cov hlab ntsha loj uas nqa cov ntshav los ntawm lub ventricle sab laug mus rau cov hlab ntshav ntawm lub cev. Xiav loj lub nkoj (vena cava) _ (suav nrog qhov zoo tshaj thiab qis dua vena cava) - _Lub plawv loj uas tso ntshav tawm mus rau sab xis atrium ntawm plawv.
Qhov thib ob, cov hlab ntsha twg nqa cov ntshav tawm ntawm lub plawv?
Cov cov hlab ntsha (liab) nqa cov pa oxygen thiab cov khoom noj kom deb ntawm koj lub plawv, mus rau koj lub cev nqaij daim tawv. Cov hlab ntshav (xiav) coj cov ntshav tsis zoo oxygen rov los rau hauv plawv. Cov hlab ntsha pib nrog aorta, cov hlab ntsha loj tawm hauv plawv. Lawv nqa cov ntshav uas muaj pa oxygen tawm ntawm lub plawv mus rau tag nrho lub cev nqaij daim tawv.
4 lub nkoj loj hauv plawv yog dab tsi?
Tsib lub nkoj loj nkag thiab tawm hauv plawv: qhov zoo tshaj thiab inferior vena cava , cov pulmonary leeg , cov pulmonary leeg , thiab aorta cov . Cov superior vena cava thiab inferior vena cava yog leeg uas rov qab deoxygenated ntshav los ntawm kev ncig hauv lub cev thiab khoob nws mus rau sab xis atrium.
Pom zoo:
Dab tsi yog qhov txawv ntawm cov hlab ntsha thiab cov hlab ntsha capillaries?
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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
Cov hlab ntsha hlab ntsha thiab cov hlab ntshav muaj dab tsi?
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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
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Muaj plaub hom neuroglia pom nyob hauv nruab nrab lub paj hlwb: Astrocytes - tswj cov ntshav lub hlwb teeb meem thiab khaws cov tshuaj ib puag ncig los ntawm kev siv cov ions rov qab thiab cov tshuaj xa xov mus rau lub cev. Oligodendrocytes - myelinate axons nyob rau hauv lub hauv nruab nrab lub paj hlwb thiab muab tag nrho cov txheej txheem txheej txheem
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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?
![Dab tsi yog cov hlab ntsha thiab cov hlab ntsha capillaries? Dab tsi yog cov hlab ntsha thiab cov hlab ntsha capillaries?](https://i.answers-medical.com/preview/medical-health/14039135-what-are-arteries-veins-and-capillaries-j.webp)
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