Video: Vim li cas cov hlab ntsha thiab cov pa ua pa tseem ceeb?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
~ Kev Circulatory System thiab Kev Ua pa ~
Cov circulatory system yog pab tau heev Qhov no lawv thauj cov khoom noj khoom haus, thiab oxygen mus rau lub cev lub cev. Nws tseem xa cov pa roj carbon dioxide thiab cov khoom pov tseg. Qhov no pab ua pa los ntawm kev thauj cov as -ham kom lub ntsws huv, thiab noj qab nyob zoo.
Ib yam li ib tus tuaj yeem nug, vim li cas thiaj li yuav tsum muaj cov hlab ntshav thiab ua pa ua haujlwm ua ke?
KEY CONCEPT Cov ua pa thiab circulatory systems nqa oxygen thiab cov as -ham rau lub cell. Cov ua pa thiab circulatory systems ua haujlwm ua ke los tswj hwm homeostasis. Cov ua pa txav cov roj nkag mus thiab tawm ntawm cov ntshav. Lub ntsws muaj cov ntsws, bronchioles, thiab alveoli.
Ib qho ntxiv, yuav ua li cas cov hlab ntshav sib txuas nrog cov pa ua pa? Kev sib pauv roj ntawm cov ntaub so ntswg thiab ntshav yog lub luag haujlwm tseem ceeb ntawm circulatory system . Hauv tib neeg, lwm hom tsiaj, thiab noog, ntshav nqus cov pa oxygen thiab tso cov pa roj carbon dioxide tawm hauv lub ntsws. Yog li cov ncig thiab ua pa , nws lub luag haujlwm yog kom tau txais cov pa oxygen thiab tso cov pa roj carbon dioxide, ua haujlwm ua ke.
Ib yam li ntawd, koj tuaj yeem nug, vim li cas cov kab ke hauv lub cev tseem ceeb?
Cov Circulatory System . Cov circulatory system ua heev tseem ceeb haujlwm hauv koj lub cev. Nws nqa cov pa oxygen thiab cov as -ham tseem ceeb rau txhua lub cell ncig lub cev hauv cov hlab ntsha thiab nqa cov khoom pov tseg thiab cov pa roj carbon dioxide hauv cov leeg. Qhov nruab nrab tib neeg lub cev muaj ntau dua 60, 000 mais ntawm cov hlab ntshav.
Txoj kev ua pa thiab lub cev ua pa nyob ntawm ib leeg li cas?
Txhua tus ntawm koj lub cev tshuab relies rau lub lwm tus ua haujlwm zoo. Koj ua pa vam khom koj circulatory system kom xa cov pa nws sib sau ua ke, thaum cov leeg ntawm koj lub plawv tsis tuaj yeem ua haujlwm yam tsis muaj oxygen uas lawv tau txais los ntawm koj lub ntsws. Koj circulatory system xa cov ntshav uas muaj oxygen rau koj cov pob txha.
Pom zoo:
Cov hlab ntsha hlab ntsha thiab cov hlab ntshav muaj dab tsi?
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
Puas yog Neuroglia tsim cov hlab ntsha hauv cov hlab ntsha hauv nruab nrab cov hlab ntsha?
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
Vim li cas peb thiaj sau cov ntshav los ntawm cov hlab ntsha thiab tsis yog los ntawm cov hlab ntsha?
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 ob txoj hlab ntsha tseem ceeb ntawm cov hlab ntsha?
Lub aorta (lub ntsiab cov ntshav muab rau lub cev) ceg tawm mus rau hauv ob lub ntsiab coronary hlab ntsha (tseem hu ua cov hlab ntsha). Cov hlab ntsha coronary no tawm mus rau hauv cov hlab ntsha me, uas muab cov ntshav oxygen nplua nuj rau tag nrho lub plawv cov leeg. Txoj cai coronary artery muab cov ntshav tsuas yog rau sab xis ntawm lub plawv
Dab tsi yog cov hlab ntsha tseem ceeb ntawm cov hlab ntsha?
Cov hlab ntsha, cov hlab ntsha thiab lymphatic system yog cov hlab ntsha tseem ceeb hauv lub cev circulating system. parasympathetic - lub luag haujlwm rau vasoconstriction