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12 Cards in this Set
- Front
- Back
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The outer region of the retina is supplied by the....
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The arteries from the choroid epithelium
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The inner region of the retina is supplied by.....
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The central retinal artery from the opthalamic artery from the IC.
Central retinal a. occlusoin kills bipolar cells, amaracrine cells, and ganglion cells |
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Why do you have the best accute vision in the macula
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It the inner retinal layer is pushed aside and it has no blood supply.
Has a lot of cones |
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How do you occlude the optic chiasm and what do you get
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Pituitary tumor
bitemporal heteronymous heminopia |
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How do you occlude the peripheral optic chiasm
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ICA
Left Nasal heminopia |
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Superior visual field projects to....
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inferior retina via myers loop to the lingula of the primary visual cortex
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inferior visual field projects to.....
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direct radiation to the cuneus
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how do you knock out the optic tract
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occude the posterior cerebral, communicating, and anterior choroidal artery
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Lesion of full optic radiation
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falcine meningioma
tumor of falx cerebri Right homonymous hemianopia |
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PCA supplies the occipital pole macular region, how come sometime when it get occluded you still have macular vision
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because of MCA known as macular sparing
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loss of macular vision known as and how do you get it
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blateral central scotoma
fall on the back of your head |
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Upper bank take out on both sides is caused by...
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midline meningiomas and it is known as a bilateral lower altitudinopia
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