Cov txheej txheem:
- arachnoid villi thiab granulations nyob qhov twg?
- Puas yog arachnoid granulations nyob rau hauv qhov chaw subarachnoid?
- Puas muaj arachnoid granulations hauv qaum qaum?
- Dab tsi yog arachnoid granulation hauv lub hlwb?
Video: Koj pom arachnoid granulations nyob qhov twg?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Arachnoid granulations (AGs) yog tufts ntawm arachnoid membrane invaginated rau hauv dural sinuses los ntawm cov kua cerebrospinal (CSF) nkag mus rau hauv lub venous system. Cov kab mob feem ntau yog nyob rau hauv thaj tsam parasagittal raws lub superior sagittal sinus superior sagittal sinus Lub superior sagittal sinus yog ib tug unpaired venous qauv uas originates ntawm qhov chaw ntawm lub frontal thiab ethmoid pob txha, ncaj qha posterior mus rau lub foramen cecum ze rau crista galli. https://www.ncbi.nlm.nih.gov › books › NBK546615
Neuroanatomy, Superior Sagittal Sinus - StatPearls - NCBI Bookshelf
[1], uas qee zaus pom ntawm qhov chaw hla hla.
arachnoid villi thiab granulations nyob qhov twg?
Arachnoid granulations (tseem arachnoid villi, thiab pacchionian granulations lossis lub cev) yog me me ntawm cov arachnoid mater (cov txheej thib ob uas npog lub hlwb) rau hauv daim nyias nyias ntawm dura mater (cov tuab tuab. txheej txheej).
Puas yog arachnoid granulations nyob rau hauv qhov chaw subarachnoid?
Arachnoid granulations lossis villi yog kev loj hlob ntawm arachnoid daim nyias nyias mus rau lub dural sinuses, uas CSF nkag mus rau hauv cov hlab ntsha los ntawm qhov chaw subarachnoid. Arachnoid villi yog microscopic, whereas arachnoid granulations sawv cev villi distended thiab pom ntawm qhov muag liab qab.
Puas muaj arachnoid granulations hauv qaum qaum?
CSF kuj ncig ncig ntawm tus txha caj qaum thiab cov leeg txha caj qaum uas ua haujlwm los ntawm nws (Daim duab 2-3). Raws li cov qauv no tawm ntawm tus txha caj qaum, arachnoid villi thiab arachnoid granulations tsim raws lub dura ntawm lub hauv paus lub tes tsho thiab ua haujlwm rau hauv cov leeg txha caj qaum.
Dab tsi yog arachnoid granulation hauv lub hlwb?
Arachnoid granulations yog cov qauv uas muaj cov kua dej cerebrospinal (CSF) uas txuas mus rau hauv cov venous sinuses los ntawm kev qhib hauv dura mater thiab tso cai rau cov kua dej ntawm CSF los ntawm qhov chaw subarachnoid mus rau hauv cov hlab ntsha.. Feem ntau lawv yog asymptomatic tab sis tuaj yeem ua cov tsos mob thaum loj txaus ua rau mob qhov ntswg.
Pom zoo:
Koj puas tuaj yeem ua qhov muag pom qhov pom kev zoo nkauj?
Eyepiece projection astrophotography Koj tsuas yog kab lub koob yees duab lo ntsiab muag nrog qhib lub qhov muag thiab sim ntes qhov pom pom los ntawm lub koob yees duab ntawm qhov loj. Thaum ntxov, kuv tau tua ntau cov duab astrophotography siv txoj kev no los ntawm kuv Orion SkyQuest Dobsonian telescope .
Qhov qhov muag tsis pom ntawm lub tsheb thauj khoom nyob qhov twg?
Tsev tsheb ciav hlau qhov muag tsis pom muaj xws li: Ncaj nraim rau pem hauv ntej ntawm lub tsheb thauj khoom mus txog 20 ko taw Ncaj nraim hauv qab lub tsheb thauj khoom li 30 ko taw Txhua sab ntawm lub tsheb thauj mus rau sab nraub qaum Tam sim ntawd hauv qab thiab qab tus neeg tsav tsheb qhov rais Puas muaj qhov muag tsis pom kev tsheb thauj mus los?
Dab tsi ua rau arachnoid granulations?
Arachnoid granulations nce tus lej thiab loj dua nrog lub hnub nyoog hauv cov lus teb kom nce CSF siab los ntawm qhov chaw subarachnoidthiab feem ntau pom meej thaum muaj hnub nyoog 4 xyoos . Puas arachnoid granulations ib txwm? Lawv yog focal, zoo-txhais, thiab feem ntau nyob rau hauv lub lateral transverse sinuses uas nyob ib sab mus rau venous nkag qhov chaw.
Dab tsi yog qhov txawv ntawm kev pom tsis pom thiab pom tsis pom ntau dua?
Kev muaj peev xwm tawm tsam yam tsis muaj qhov kawg ntawm kev sau ntawv vs kev tuaj yeem cuam tshuam rau lwm tus neeg kuj yog qhov sib txawv. Qhov tseem ceeb Invisibility yog "qhov tseeb nrhiav / nkaum / mus ncig tsis pom" qhov twg Qhov Kev Pom Zoo Tshaj Plaws yog ntau ntawm kev sib ntaus sib tua Puas pom qhov tsis pom kev ua haujlwm ntawm kev pom tsis pom ntau dua?
Puas arachnoid granulations ua rau mob taub hau?
Giant arachnoid granulations muaj tau tshaj tawm tias muaj feem cuam tshuam nrog mob taub hau, uas tuaj yeem mob hnyav lossis mob ntev hauv kev nthuav qhia. Qee zaum, idiopathic intracranial hypertension, yav tas los hu ua pseudotumor cerebri, yuav tshwm sim .
