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circle of willis def
circle of willis deficit
Question | Answer |
---|---|
contralateral hemiparesis ( low extremities), medial lemniscus ( dec. contralateral proprioception), ipsilateral paralysis of hypoglossal nerve | anterior spinal artery ( medial medullary syndrome) |
contralateral loss of pain and temperature | PICA |
Ipsilateral dysphagia, hoarseness, dec. gag reflex | PICA |
wallenberg's syndrome | PICA |
lateral medullary syndrome | PICA |
ipsilateral facial paralysis, ipsilateral cochlear nucleus, vestibular nystagmus | AICA |
lateral inferior pontine syndrom | AICA |
contralateral hemianopia with macular sparing, occipital cortex | posterior cerebral artery |
contralateral face and arm paralysis and sensory loss, aphasia, left-side neglect | Middle cerebral artery |
leg-foot area of motor and sensory cortices | anterior cerebral artery |
circle of willis aneurysm, visual field defects | anterior communicating artery |
common area of aneurysm, CN III palsy | posterior communicating |
internal capsule, caudate, putamen, globus pallidus, "arteries of stroke" infact of the posterior limb of the internal capsule causes pure motor hemiparesis | lateral striate |
anterior cerebral/middle cerebral, damage in severe hypotension | watershed zones |
upper leg/upper arm weakness, defects in higher-order visual processing | watershed zones |
locked-in syndrome CN III is typically intact | basilar artery |
in general, stroke of anterior circle | general sensory and motor dysfunction, aphsia |
in general, stroke of posterior circle | cranial nerve deficits ( vertigo, visual deficits), coma, cerebellar deficits, dominant hemisphere ( ataxia), nondominant ( neglect) |