Flashcards in Effects of Strokes Deck (35)
What does MCA supply?
Motor cortex (UE and face), sensory cortex (UE and face), temporal lobe (Wernicke's) and frontal lobe (Broca's)
What does the ACA supply?
Motor cortex (LE), sensory cortex (LE)
What does the lateral striate artery supply?
Striatum, internal capsule
What supplies the LCST?
What supplies the lateral medulla?
What does the AICA supply?
What does the PCA supply?
Occipital cortex, visual cortex
What supplies the medial lemniscus?
What supplies the caudal medulla including the hypoglossal nerve?
Where do saccular (berry) aneurysms usually occur?
AComm and PComm
What artery when affected causes aphasia?
MCA (usually left hemisphere--dominant)
What if the right temporal lobe is affected due to stroke of the MCA?
Hemineglect (nondominant hemisphere)
What is a common location of lacunar infarcts secondary to unmanaged HTN?
Lateral striate artery
What artery causes medial medullary syndrome?
Infarct of paramedian branches of ASA and vertebral arteries
What artery causes lateral medullary (Wallenberg's) syndrome?
What artery causes lateral pontine syndrome?
What causes contralateral hemiparesis and hemiplegia?
Stroke in the internal capsule
Nucleus ambiguus effects are specific to what kind of lesions?
Facial nucleus effects are specific to what kind of lesions?
What causes contralateral hemianopia with macular sparing?
What symptoms occur as a result of AComm occlusion?
What causes CN III palsy?
What supplies only the inferior cerebellar peduncle?
What supplies the middle and inferior cerebellar peduncles?
Vomiting, nystagmus, vertigo, ataxia and dysmetria?
PICA and AICA
Ipsilateral Horner's syndrome?
PICA and AICA
Dysphagia, hoarseness, decreased gag reflex?
Medial medullary syndrome?
1) CST (contralateral hemiparesis)
2) ML (contralateral loss of proprioception)
3) Ipsilateral CN XII paralysis
Lateral medullary syndrome?
1) CN V nucleus (ipsilateral loss of pain/temp)
2) LSTT (contralateral loss of pain/temp)
3) Nucleus ambiguus (dysphagia and hoarseness)
4) Dorsolateral quandrant of medulla and inferior cerebellum
5) Ipsilateral Horner's