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Retinal vasculature yog dab tsi?

Cov txheej txheem:

Retinal vasculature yog dab tsi?
Retinal vasculature yog dab tsi?

Video: Retinal vasculature yog dab tsi?

Video: Retinal vasculature yog dab tsi?
Video: Eye Floaters and Flashes, Animation. 2024, Lub Xya hli ntuj
Anonim

Cov retina sab hauv yog muab los ntawm lub retinal vasculature, uas tau txais nws cov tswv yim los ntawm lub hauv paus retinal artery central retinal artery Lub hauv paus retinal artery pierces lub qhov muag ze ntawm lub paj hlwb, xa cov ceg hla ntawm sab hauv ntawm lub retina, thiab cov ceg ntawm lub davhlau ya nyob twg tsuas yog cov ntshav mus rau qhov loj ntawm nws. https://en.wikipedia.org › wiki › Central_retinal_artery

Central retinal hlab ntsha - Wikipedia

(CRA). Ntawm lub optic disc uas CRA bifurcates rau hauv ob peb ceg uas muab cov ntshav ntawm tag nrho cov sab hauv retina. Lub venous ib feem ntawm lub retinal ncig yog teem nyob rau hauv ib tug zoo xws li txoj kev.

mob retina vasculitis hnyav npaum li cas?

Retinal vasculitis ranges nyob rau hauv mob me me mus rau qhov hnyav Kev puas tsuaj rau cov hlab ntsha ntawm lub retina tuaj yeem ua rau qhov muag tsis pom, ib nrab, lossis ua tiav qhov muag tsis pom. Retinal vasculitis los ntawm nws tus kheej tsis mob, tab sis ntau yam kab mob uas ua rau nws kuj tuaj yeem ua rau mob mob rau lwm qhov, xws li hauv pob qij txha.

Dab tsi yog qhov hloov pauv ntawm cov hlab ntsha ntawm lub paj hlwb?

Pom tau cov kev hloov pauv hauv retinal vascular architecture, xws li nce cov hlab ntsha ntawm cov hlab ntsha (txo qis cov hlab ntsha-rau-vein piv), retinal vascular tortuosity, nce prominence ntawm retinal arterial reflex, venous nicking, "tooj liab. "los yog "nyiaj hlau" zoo li zoo li nrhiav pom cov roj cholesterol, calcium los yog…

Yuav ua li cas yog qhov txawv txav ntawm lub vascular?

Kev faib tawm ntawm cov qauv no rau hauv plaub pawg tau piav qhia zoo. … Lub avian retina yog ua tiavavascular (anangiotic qauv), tab sis ib lub vascularised pecten oculi yog txuas mus rau linear optic paj hlwb lub taub hau thiab protrudes deb mus rau inferior ib feem ntawm lub vitreous lub cev.

cov hlab ntsha ntawm cov hlab ntsha nyob qhov twg?

Lub retina muaj ob qhov chaw ntawm oxygen thiab cov as-ham: cov hlab ntsha ntawm cov hlab ntsha thiab cov choroid, uas nyob nyob rau hauv cov xim ntawm lub qhov muag epithelium. Cov hlab ntsha nyob rau hauv lub retina nws tus kheej uas nqa oxygen thiab cov as-ham hu ua cov hlab ntsha.

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