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PBL 2: Remediation Boogaloo > Neuro 10: Brain hemisphere circulation > Flashcards

Neuro 10: Brain hemisphere circulation Flashcards

1
Q

Cerebral hemisphere anterior circulation comes from

A

Internal carotid

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2
Q

Cerebral hemisphere posterior circulation comes from

A

Vertebral arteries

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3
Q

Terminal branches of internal carotids

A

anterior cerebral arteries (ACAs)
middle cerebral arteries (MCAs)

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4
Q

Putamen circulation source

A

ACA

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5
Q

Caudate nucleus circulation source

A

MCA

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6
Q

Thalmus circulation source

A

PCA

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7
Q

Superior left MCA infarct signs

A

Upper motor neuron right face and arm weakness

Broca’s aphasia (has trouble getting words out)

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8
Q

Inferior Left MCA infarct

A

Wernicke’s aphasia (forms sentences that makes no sense). Right visual field defect. Usually no motor findings

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9
Q

Deep Left MCA infarct

A

Right upper motor neuron hemiparesis

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10
Q

Left MCA Stem infarct

A

Right hemiplegia, right hemiamnesthesia, aphasia,

left gaze preference

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11
Q

Right superior MCA infarct

A

Left face/arm weakness, left hemineglect

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12
Q

Inferior Right MCA infarct

A

Profound left hemineglect.
Left visual field and somatosensory deficits

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13
Q

Deep right MCA infarct

A

Left motor hemiparesis

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14
Q

Right MCA stem infarct

A

Left hemiplegia, hemianesthesia, left hemineglect.

Right gaze preference.

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15
Q

Left ACA infarct

A

Right leg UMN weakness. Right leg cortical sensory loss.

Grasp reflex maybe

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16
Q

Right ACA infarct

A

Left leg UMN weakness. Left leg cortical sensory loss.

Grasp reflex maybe

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17
Q

Left PCA infarct

A

Right homonymous hemianopia

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18
Q

Right PCA infarct

A

Left homonumous hemianopia

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19
Q

Gaze preference side

A

“looks towards lesion”

20
Q

ACA infarcts affect…

A

Contralateral leg more than arm or face

21
Q

Watershed infarct

A

Area between two arteries is most affected

22
Q

Man in barrel syndrome

A

Proximal arm and leg weakness as a result of watershed infarct of ACA and MCA

23
Q

Carotid stenosis causes _________

A

Watershed infarct of ACA-MCA

24
Q

TIA duration

A

Typically 10 min

25
Q

Hemmorhagic conversion

A

Ischemic stroke ruptures to become brain bleed

26
Q

Thrombotic vs embolic infarct

A

Thrombosis: forms clot on blood vessel
Embolic: travels from elsewhere

27
Q

Lacunar infarct

A

Small vessel infarct resembling lake

28
Q

Lypohyalinosis

A

hypertension related changes in arterial walls

29
Q

Pure motor hemiparersis

30
Q

Ataxic hemiparesis

A

UMN hemiparesis with additional ataxia

31
Q

Large MCA infarct common complication

A

Edema and mass swelling.

32
Q

Carotid dissection signs

A

Patient may hear heartbeat and have ipsilateral Horner’s

33
Q

Vertebral artery dissection symptoms

A

Posterior neck and occipital pain

34
Q

Superficial veins drain into

A

superior sagital sinus

35
Q

Deep veins drain into

A

Vein of galen

36
Q

All venous drainage from brain goes to

A

Internal jugulars

37
Q

Sagittal sinus thrombosis S/s

A

Seizures, increased ICP, decreased LOC, headaches and papilledema

38
Q

Common subarachnoid hemmorhage locations

A

Origin or ACA, PCA or bifurcation of MCA

39
Q

Homonymous hemianopia

A

Vision field deficits in same half of visual field on both eyes

40
Q

Hemianesthesia

A

Loss of sensitivity to stimuli on one side

41
Q

Hemiplegia

A

One sided paralysis

42
Q

Cortical sensory loss

A

Loss of discriminative sensation

43
Q

Alexia without agraphia

A

Patient can write but cant read

44
Q

Medial geniculate lesion symptom

A

hearing loss

45
Q

Corpus callosum lesion symptom

A

alexia without agraphia

46
Q

Visual cortex lesion symptom

A

Homonymous hemianopia with macula sparing

47
Q

Thalmic infarct symptoms

A

PURELY SENSORY

Contralateral homonymous hemianopia

Complete contralateral sensory loss

PBL 2: Remediation Boogaloo (24 decks)

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