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Flashcards in Effects of Strokes Deck (35)
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1

What does MCA supply?

Motor cortex (UE and face), sensory cortex (UE and face), temporal lobe (Wernicke's) and frontal lobe (Broca's)

2

What does the ACA supply?

Motor cortex (LE), sensory cortex (LE)

3

What does the lateral striate artery supply?

Striatum, internal capsule

4

What supplies the LCST?

ASA

5

What supplies the lateral medulla?

PICA

6

What does the AICA supply?

Lateral pons

7

What does the PCA supply?

Occipital cortex, visual cortex

8

What supplies the medial lemniscus?

ASA

9

What supplies the caudal medulla including the hypoglossal nerve?

ASA

10

Where do saccular (berry) aneurysms usually occur?

AComm and PComm

11

What artery when affected causes aphasia?

MCA (usually left hemisphere--dominant)

12

What if the right temporal lobe is affected due to stroke of the MCA?

Hemineglect (nondominant hemisphere)

13

What is a common location of lacunar infarcts secondary to unmanaged HTN?

Lateral striate artery

14

What artery causes medial medullary syndrome?

Infarct of paramedian branches of ASA and vertebral arteries

15

What artery causes lateral medullary (Wallenberg's) syndrome?

PICA

16

What artery causes lateral pontine syndrome?

AICA

17

What causes contralateral hemiparesis and hemiplegia?

Stroke in the internal capsule

18

Nucleus ambiguus effects are specific to what kind of lesions?

PICA

19

Facial nucleus effects are specific to what kind of lesions?

AICA

20

What causes contralateral hemianopia with macular sparing?

PCA

21

What symptoms occur as a result of AComm occlusion?

Bitemporal hemianopia

22

What causes CN III palsy?

PComm

23

What supplies only the inferior cerebellar peduncle?

PICA

24

What supplies the middle and inferior cerebellar peduncles?

AICA

25

Vomiting, nystagmus, vertigo, ataxia and dysmetria?

PICA and AICA

26

Ipsilateral Horner's syndrome?

PICA and AICA

27

Dysphagia, hoarseness, decreased gag reflex?

PICA

28

Medial medullary syndrome?

1) CST (contralateral hemiparesis)
2) ML (contralateral loss of proprioception)
3) Ipsilateral CN XII paralysis

29

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

30

Benedikt's?

1) Ipsilateral CN III paralysis
2) Red nucleus (contralateral cerebellar dystaxia with intention tremor)
3) ML (contralateral loss of proprioception)