Video: Puas yog cov hlab ntsha uas muaj oxygenated ntshav lossis cov hlab ntsha?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov cov hlab ntsha yog pom tau hais tias nqa cov ntshav oxygenated rau cov ntaub so ntswg, thaum leeg nqa deoxygenated ntshav rov qab rau lub siab. Txawm li cas los xij, hauv pulmonary ncig, lub cov hlab ntsha nqa deoxygenated ntshav los ntawm lub plawv mus rau lub ntsws, thiab leeg rov qab los ntshav los ntawm lub ntsws mus rau lub plawv.
Hauv qhov no, cov hlab ntsha lossis cov hlab ntsha twg nqa cov ntshav oxygenated?
Cov hlab ntsha nqa cov ntshav oxygenated tawm ntawm lub plawv mus rau cov ntaub so ntswg, tshwj tsis yog rau pulmonary hlab ntsha , uas nqa cov ntshav mus rau lub ntsws kom oxygenation (feem ntau cov hlab ntsha nqa cov ntshav deoxygenated mus rau lub plawv tab sis cov hlab ntsws muaj cov ntshav oxygenated thiab).
Ib qho ntxiv, puas yog tag nrho cov hlab ntsha nqa ntshav oxygen? Cov hlab ntsha thiab cov leeg ntshav yog ib feem ntawm cov hlab ntshav uas ua haujlwm nqa ntshav nruab nrab ntawm lub plawv, lub ntsws, thiab tag nrho lwm qhov chaw ntawm lub cev. Feem ntau cov hlab ntsha nqa cov ntshav oxygenated , thiab feem ntau leeg nqa deoxygenated ntshav ; lub ntsws cov hlab ntsha thiab cov hlab ntsha yog cov kev zam rau txoj cai no.
Ua kom pom qhov no, cov hlab ntsha twg nqa cov ntshav deoxygenated thiab cov hlab ntsha twg nqa cov ntshav oxygenated?
Cov pulmonary leeg nqa cov ntshav deoxygenated los ntawm txoj hlab ntshav sab xis mus rau hauv lub ntsws rau oxygenation. Cov hlab ntsha pulmonary nqa cov ntshav oxygenated los ntawm cov hlab ntsha lub ntsws mus rau sab laug atrium qhov twg nws rov qab mus rau lub systemic ncig. Aorta yog cov hlab ntsha loj tshaj plaws hauv lub cev.
Puas yog txoj hlab ntsws tsuas yog cov leeg leeg uas nqa cov ntshav oxygenated?
Pulmonary leeg yog lub luag haujlwm nqa cov ntshav oxygenated los ntawm lub ntsws rov qab mus rau sab laug atrium ntawm lub plawv. Qhov no txawv qhov pulmonary leeg los ntawm lwm yam leeg nyob rau hauv lub cev, uas yog siv rau nqa deoxygenated ntshav los ntawm tus so ntawm lub cev rov qab mus rau lub plawv. Cov no nqa ntshav los ntawm sab xis lub ntsws.
Pom zoo:
Puas yog txoj hlab ntsws tsuas yog cov leeg leeg uas nqa cov ntshav oxygenated?
Cov hlab ntsws yog lub luag haujlwm nqa cov ntshav oxygenated los ntawm lub ntsws rov qab mus rau sab laug atrium ntawm lub plawv. Qhov no sib txawv ntawm cov leeg ntshav los ntawm lwm cov leeg hauv lub cev, uas tau siv los nqa cov ntshav deoxygenated los ntawm lub cev tag nrho rov qab mus rau lub plawv. Cov no nqa ntshav los ntawm lub ntsws txoj cai
Cov hlab ntsha lossis cov hlab ntsha puas khov dua?
Cov hlab ntsha muaj cov leeg ntau dua thiab muaj me dua, puag ncig lub lumens (qhov chaw sab hauv) dua li cov leeg. Nws yog tsim los ntawm cov leeg nqaij du thiab elastic fibers hu ua elastin. Cov txheej ntawm elastin cais cov tunica media los ntawm lwm cov txheej. Tunica media yog txheej tuab tshaj plaws hauv cov hlab ntsha
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
Puas yog tag nrho cov hlab ntsha nqa cov ntshav oxygenated thiab cov leeg nqa cov ntshav deoxygenated?
Cov hlab ntsha ua ib feem ntawm lub circulatory system. Cov hlab ntsha nqa cov ntshav oxygenated tawm ntawm lub plawv mus rau cov ntaub so ntswg, tshwj tsis yog cov hlab ntshav hauv lub ntsws, uas nqa ntshav mus rau lub ntsws rau cov pa oxygen (feem ntau cov leeg ntshav nqa cov ntshav deoxygenated mus rau lub plawv tab sis cov leeg hauv ntsws nqa cov ntshav oxygenated ib yam)