Cov txheej txheem:
Video: Cov hlab ntsha sib txawv li cas?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Muaj tsib hom hlab ntsha : cov hlab ntsha, uas nqa cov ntshav deb ntawm lub plawv; cov hlab ntsha; cov hlab ntsha, qhov sib pauv dej thiab tshuaj lom neeg ntawm ntshav thiab cov ntaub so ntswg tshwm sim; cov venules; thiab cov leeg, uas nqa ntshav los ntawm cov hlab ntsha rov qab mus rau lub plawv.
Kuj nug, 3 hom sib txawv ntawm cov hlab ntshav yog dab tsi?
Muaj peb hom tseem ceeb ntawm cov hlab ntsha:
- Cov hlab ntsha. Lawv nqa cov ntshav uas muaj pa oxygen tawm ntawm lub plawv mus rau tag nrho lub cev nqaij daim tawv.
- Capillaries. Cov no yog cov hlab ntshav me me, uas txuas cov hlab ntsha thiab cov leeg.
- Cov leeg.
Ib yam nkaus, hom sib txawv ntawm cov hlab ntsha thiab lawv lub luag haujlwm yog dab tsi? Lub ntsiab muaj nuj nqi ntawm cov hlab ntsha yog nqa ntshav dhau lub cev. Cov ntshav nqa cov pa oxygen, cov as -ham, thiab pov tseg uas yuav tsum tau txav mus los thoob plaws lub cev. Muaj yog peb hom hlab ntsha : cov hlab ntsha, leeg, thiab capillaries. Cov hlab ntsha muaj cov phab ntsa tuab dua thiab lub qhov me me sab hauv dua li cov leeg.
Ib yam nkaus, tib neeg nug, 5 hom hlab ntsha twg yog dab tsi?
Muaj tsib hom tseem ceeb ntawm cov hlab ntsha: cov hlab ntsha , cov hlab ntsha , cov hlab ntsha , venules thiab leeg . Cov hlab ntsha nqa ntshav tawm ntawm lub plawv mus rau lwm lub cev. Lawv tuaj yeem sib txawv me me. Qhov loj tshaj plaws cov hlab ntsha muaj cov fibers tshwj xeeb hauv lawv cov phab ntsa.
Cov hlab ntsha loj yog dab tsi?
Peb Loj Hom ntawm Ntshav Ntshav : Arteries, Veins, thiab Capillaries. Cov hlab ntsha ntws ntshav thoob plaws lub cev. Arteries thauj ntshav deb ntawm lub plawv. Cov hlab ntsha rov qab los ntshav rov qab mus rau lub plawv. Cov hlab ntsha nyob ib puag ncig lub cev lub cev thiab cov ntaub so ntswg kom xa thiab nqus oxygen, cov as -ham, thiab lwm yam tshuaj.
Pom zoo:
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
Koj tuaj yeem qhia qhov sib txawv ntawm cov hlab ntsha thiab cov hlab ntsha li cas?
Cov hlab ntshav yog cov hlab ntshav ua lub luag haujlwm nqa cov pa oxygen ntau ntawm lub plawv mus rau lub cev.Cov leeg ntshav yog cov hlab ntshav uas nqa cov ntshav qis inoxygen los ntawm lub cev rov mus rau lub plawv forreoxygenation
Cov hlab ntsha hauv lub ntsws txawv li cas ntawm cov hlab ntsha hauv nruab nrog cev?
Cov hlab ntsha. Cov hlab ntsha hauv lub ntsws nqa cov ntshav oxygen tsawg los ntawm txoj hlab ntshav ntawm lub plawv mus rau lub ntsws. Cov hlab ntsha hauv lub cev thauj cov ntshav oxygenated los ntawm sab laug ventricle ntawm lub plawv mus rau tag nrho lub cev. Cov leeg