Video: Hom hlab ntshav twg txuas cov hlab ntsha thiab cov hlab ntshav?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
hom hlab ntsha
Capillaries yog feeb cov phab ntsa nyias nyias uas txuas cov hlab ntsha thiab cov hlab ntshav; nws yog dhau ntawm capillaries tias cov as-ham thiab cov khoom pov tseg tau pauv ntawm cov ntshav thiab cov ntaub so ntswg ntawm lub cev
Zoo ib yam tuaj yeem nug, cov hlab ntsha thiab cov leeg ntshav yog dab tsi?
Thaum kawg, cov hlab ntsha me tshaj plaws, cov hlab ntsha hu ua cov hlab ntsha , txuas ntxiv mus rau hauv cov hlab ntsha me me, qhov twg cov khoom noj thiab cov khib nyiab pauv, thiab tom qab ntawd sib xyaw nrog lwm cov hlab ntsha uas tawm ntawm cov hlab ntshav kom tsim cov venules , cov hlab ntsha me uas nqa ntshav mus rau cov hlab ntsha, cov hlab ntsha loj dua uas rov qab los rau lub plawv.
Ib yam nkaus, cov hlab ntsha twg muaj li qub? Tsis zoo li cov hlab ntsha, leeg muaj li qub uas ua kom cov ntshav ntws mus rau ib qho nkaus xwb. (Cov hlab ntsha tsis tas yuav tsum muaj li qub vim tias lub siab los ntawm lub plawv muaj zog heev uas cov ntshav tsuas tuaj yeem ntws mus rau hauv ib qho kev taw qhia xwb.) li qub kuj pab cov ntshav rov qab mus rau lub plawv tiv thaiv lub zog ntawm lub ntiajteb txawj nqus.
Ib yam li ntawd, nws yog nug, dab tsi txuas rau arterioles?
Arterioles txuas nrog rau cov hlab ntshav me me hu ua capillaries . Los ntawm cov phab ntsa nyias ntawm cov hlab ntsha , oxygen thiab cov as -ham dhau 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 , ntshav hla mus rau hauv cov venules , tom qab ntawd rau hauv cov leeg ntshav rov qab mus rau lub plawv.
Hom hlab ntsha twg ua rau cov ntshav reservoir?
cov hlab ntsha
Pom zoo:
Cov hlab ntsha thiab cov hlab ntsha nyob qhov twg?
Txawm hais tias txoj hlab ntsha yog ib txwm ntseeg tias taug kev hauv qhov zawj ntawm qhov tsis zoo ntawm tus tav nrog rau cov hlab ntsha thiab cov leeg leeg, cov hlab ntsha kuj tseem tuaj yeem nyob nruab nrab ntawm cov tav. Cov paj hlwb intercostal nyob tob rau hauv cov leeg nqaij intercostal thiab sab nraud rau lub pleura
Dab tsi yog qhov txawv ntawm cov hlab ntsha thiab cov hlab ntsha capillaries?
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?
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