Cov venous sinus nyob qhov twg?

2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44

Dural venous sinuses yog cov leeg ntshav cov channel nyob intracranial ntawm ob txheej ntawm dura 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.

Yog li ntawd, dab tsi yog qhov ua haujlwm ntawm cov hlab ntshav venous dural?

Cov dural venous qhov ntswg pw ntawm lub periosteal thiab meningeal txheej ntawm dura mater. 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 qhov ntswg thaum kawg ntws mus rau hauv cov hlab ntshav sab hauv.

Ib yam li ntawd, cranial venous sinus yog dab tsi? Cov dural venous qhov ntswg (tseem hu ua dural sinuses , paj hlwb qhov quav , los yog cranial qhov ntswg ) yog cov leeg ntshav cov kab pom ntawm cov endosteal thiab meningeal txheej ntawm dura mater hauv lub hlwb.

Ib tug kuj yuav nug, ua li cas yog dural venous sinuses tsim?

Cov cov leeg ntshav 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.

Dab tsi ntws mus rau hauv qhov ncaj sinus?

Cov ncaj sinus , kuj hu ua tentorial qhov ntswg los yog cov qhov ntswg rectus, yog thaj chaw hauv lub pob txha taub hau hauv qab lub hlwb uas tau txais cov ntshav venous. Cov ncaj sinus tau txais cov ntshav los ntawm cov hlab ntshav zoo tshaj plaws thiab sagittal qis dua qhov ntswg thiab dej hauv lub confluence ntawm qhov quav.