Cov txheej txheem:
![Puas yog dura mater muaj cov hlab ntsha? Puas yog dura mater muaj cov hlab ntsha?](https://i.answers-medical.com/preview/medical-health/13926157-does-dura-mater-have-blood-vessels-j.webp)
Video: Puas yog dura mater muaj cov hlab ntsha?
![Video: Puas yog dura mater muaj cov hlab ntsha? Video: Puas yog dura mater muaj cov hlab ntsha?](https://i.ytimg.com/vi/b1HH5-isyiA/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Dura cov
Nws muaj ob txheej: txheej txheej endosteal, uas nyob ze rau pob txha taub hau, thiab txheej sab hauv sab hauv, uas nyob ze rau lub hlwb. Nws muaj qhov loj dua cov hlab ntsha uas faib rau hauv cov hlab ntsha hauv pia txiv.
Yooj yim li, puas yog dura mater vascular?
Lawv yog lub luag haujlwm rau cov leeg ntshav vasculature ntawm lub cev ntawm cranium, ntws mus rau sab hauv jugular leeg. Hauv qee thaj chaw hauv pob txha taub hau, txheej txheej meningeal ntawm dura mav quav sab hauv raws li nyob deb kev xav Cov dura mav tau txais nws tus kheej vasculature ntawm lub cev ; feem ntau los ntawm nruab nrab cov hlab ntsha meningeal thiab leeg.
Qhov thib ob, puas arachnoid mater muaj cov hlab ntshav? Meninges yog peb qhov kev tiv thaiv daim nyias nyias txheej puag ncig lub hlwb thiab tus txha caj qaum. Lawv tau tsim los ntawm pia (ze rau CNS), arachnoid , thiab dura (txheej txheej sab nrauv), thiab muaj cov hlab ntsha thiab muab cov kua dej hauv lub paj hlwb.
Kuj paub, txheej txheej ntawm cov meninges muaj cov hlab ntshav?
pia mav
Dab tsi yog dura mater ua los ntawm?
Dura cov yog daim nyias nyias ua los ntawm cov ntaub so ntswg sib txuas tsis sib xws uas nyob ib puag ncig lub hlwb thiab tus txha caj qaum. Nws yog txheej sab nraud ntawm peb txheej txheej ntawm daim nyias nyias hu ua meninges uas tiv thaiv lub hauv paus paj hlwb. Lwm ob txheej txheej meningeal yog arachnoid txiv a piag txiv.
Pom zoo:
Cov hlab ntsha lossis cov hlab ntsha puas khov dua?
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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?
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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
Vim li cas peb thiaj sau cov ntshav los ntawm cov hlab ntsha thiab tsis yog los ntawm cov hlab ntsha?
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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
Puas yog cov hlab ntsha uas muaj oxygenated ntshav lossis cov hlab ntsha?
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Cov hlab ntsha tau pom tias yog nqa cov ntshav oxygenated mus rau cov ntaub so ntswg, thaum cov leeg nqa cov ntshav deoxygenated rov qab mus rau lub plawv. Txawm li cas los xij, hauv txoj hlab ntsws, cov hlab ntsha nqa cov ntshav deoxygenated los ntawm lub plawv mus rau lub ntsws, thiab cov hlab ntshav rov qab ntshav los ntawm lub ntsws mus rau lub plawv