Video: Dab tsi tsim cov kab mob dural?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov phab ntsa ntawm cov dural venous qhov ntswg muaj li ntawm dura ua mater lined nrog endothelium, txheej tshwj xeeb ntawm flattened cells pom hauv cov hlab ntshav. Lawv txawv ntawm lwm cov hlab ntshav hauv qhov uas lawv tsis muaj txheej txheej ntawm cov hlab ntsha (piv txwv li tunica media) yam ntxwv ntawm cov hlab ntsha thiab leeg.
Ib yam li ntawd, koj yuav nug, dab tsi yog dural sinus puv nrog?
Cov dural venous qhov ntswg yog qhov chaw nruab nrab ntawm endosteal thiab meningeal txheej ntawm dura ua . Lawv muaj venous cov ntshav uas tshwm sim rau feem ntau ntawm lub hlwb los yog kab noj hniav cranial. Cov sinuses muaj cov kab hauv endothelial uas txuas mus rau hauv cov leeg uas txuas nrog lawv.
Tsis tas li ntawd, qhov ua haujlwm ntawm dural sinuses yog dab tsi? Cov nyob deb venous sinuses pw ntawm periosteal thiab meningeal txheej ntawm dura ua txiv. Lawv yog qhov zoo tshaj plaws xav txog kev sau cov ntshav, uas tso rau hauv nruab nrab paj hlwb, lub ntsej muag, thiab tawv taub hau. Txhua tus dural venous sinuses Thaum kawg ntws mus rau hauv lub jugular leeg.
Ua li no, dural sinuses yog dab tsi?
Dural venous sinuses yog cov venous channel nyob rau hauv intracranial ntawm ob txheej ntawm lub dura ua mater (endosteal txheej thiab meningeal txheej). Lawv tuaj yeem pom tau tias yog cov hlab ntsha epidural. Tsis zoo li lwm cov hlab ntsha hauv lub cev, lawv khiav ib leeg, tsis sib npaug rau cov hlab ntsha.
Puas yog dural venous sinuses tsim?
Cov venous cov kua dej hauv lub hlwb tsis ua raws cov hlab ntsha ntawm lub paj hlwb. Hloov chaw, lawv ntws mus rau dural sinuses , uas tom qab ntws mus rau hauv cov hlab ntsha jugular. Feem ntau, cov phab ntsa ntawm txoj kev nqes dej no yog tsim los ntawm visceral periosteum thiab nyob deb kev xav, ob leeg lined nrog endothelium.
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