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Stroke Localization Test

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1.
What else might you see in someone with Brocas ?
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2.
Central Projections of the retina (4 of them)?
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3.
Visual Pathway = ?
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4.
A lesion of the right optic radiation specific to Meyer’s loop = ?
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5.
Non-fluent aphasia = ?
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6.
A lesion of the right optic radiation just after the LGN = ?
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7.
Visual field representation = ?
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8.
Aphasia is a disorder that results from damage to ?
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9.
Is the major target of the retinal ganglion cells ?
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10.
A lesion of the parietal portion of the right optic radiation = ?
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11.
Amnesia and the hippocampus = ?
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12.
A lesion of the optic chiasm = ?
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13.
Symptoms of a Lacunar Stroke = ?
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14.
Lacunar Strokes from normal strokes ?
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15.
A lesion of the right optic nerve causes = ?
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16.
How a Lacunar Stroke Occurs ?
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17.
A lesion of the right optic tract = ?
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18.
The pretectum goes to what ganglion ?
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19.
LGN layers = ?
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20.
In a person with prolonged, untreated high blood pressure, multiple lacunar strokes can occur, and cause ?
A.
* total loss of vision in the right eye; it also produces a right afferent pupil deficit.
B.
* loss of vision in the left hemifield: contralateral “homonymous” hemianopsia
C.
* complete loss of vision in the left hemifield: contralateral “homonymous” hemianopsia.
D.
* Edinger-Westphal nuclei
E.
* loss of past memories
F.
* right-sided weakness or paralysis of the arm and leg because the frontal lobe is also important for motor movements
G.
* All depend on the area it takes place in : Weakness or paralysis of the face, arm, leg, foot or toes -- Sudden numbness -- Difficulty walking -- Difficulty speaking -- Clumsiness of a hand or arm -- Weakness or paralysis of eye muscles
H.
* Each hemifield is projected onto the nasal hemiretina of the ipsilateral1 eye and the temporal hemiretina of the contralateral eye
I.
* loss of vision in the lower quadrant of the left hemifield
J.
* loss of vision in the temporal half of both visual fields: bitemporal hemianopsia..... * This kind of damage is most commonly caused by a tumor of the pituitary gland that compresses the chiasm
K.
* 6 layers receive inputs from either the ipsilateral or contralateral eye... * left eye project to layers 1, 4 & 6 of the right LGN, and the right eye ganglion cells project to its layer 2, 3 & 5.
L.
* The axons of ganglion cells exit the eyes via the optic nerve, partially cross at the optic chiasm, and form two optic tracts, so that the right and left hemifields reach the left and right hemispheres
M.
* loss of vision in the upper quadrant of the left hemifield
N.
* 1) lateral geniculate nucleus = relays visual info to the primary visual cortex; 2) superior colliculus = control orienting eye mvts; 3) hypothalamus = which regs the circadian rhythms; and 4) pretectum = pupillar light reflex
O.
* These deeper structures receive their blood flow through a unique set of arteries. Because of the characteristics of these arteries, lacunar strokes happen a little bit differently from other strokes
P.
* Broca's aphasia..... * People with Broca's aphasia have damage to the frontal lobe of the brain.... * Understand speech, just have difficult time speaking back
Q.
* occurs when one of the arteries that provide blood to the brain's deep structures is blocked...* are smaller arteries in the brain since it goes to deeper structures, so HTN usu causes this
R.
* All of the past CxSx, and emotional behavior and dementia.
S.
* Lateral geniculate nucleus in the thalamus
T.
* areas on the left side (hemisphere) of the brain (lesion also impairs reading/writing/understanding and expressing language)
Type the Answer that corresponds to the displayed Question.
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21.
A stroke in a deep area of the brain (for example, a stroke in the thalamus, the basal ganglia or pons) is called ?
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22.
* Aphasia is caused by damage to one or more of the language areas of the brain

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