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Neurology-anatomy

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drnieves's version from 2017-06-20 01:21

Section

Question Answer
Anterior cerebral aSupply medial portion of both hemispheres (frontal and parietal).
ACA occlusionContralateral motor and sensory deficits in lower extremities, behavioural changes, and urinary incontinence.
Optic nerve injuryanopia
Optic chiasm injurybitemporal hemianopia
Optic tract injuryLeft homonimous hemianopia
Meyer loop injuryL upper quadrantic anopia (R temporal lesion, MCA)
Dordal optic radiation (parietal lobe)L lower quadratic anopia (R parietal lesion, MCA)
Hemianopia with macular sparingPCA infarct
Central scotomamacular degeneration
Meyer loopinferior retina. Loos around inferior horn of lateral ventricle.
Dorsal optic radiationsuperior retina. Takes shortest path via internal capsule.
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