Formative Assessment Flashcards

1
Q

pyramidal tracts arise from…

A

precentral gyrus

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2
Q

extrapyramidal tracts arise from…

A

brainstem

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3
Q

lateral CS tract controls..

A

voluntary motor control of limbs and digits

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4
Q

medial CS tract controls..

A

posture

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5
Q

lateral CS tract decussates at,,,

A

pyramids of medulla

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6
Q

corticobulbar tracts control motor function to…

A

muscles of face, head, neck

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7
Q

corticobulbar tract arises from…

A

motor cortex

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8
Q

name the only nerves not controlled by the corticobulbar tract

A

CN12

lower CN7

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9
Q

an UMN lesion to CN7 will present with what sparing?

A

forehead spared

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10
Q

rubrospinal tract controls…

A

excites flexor muscles of upper body only

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11
Q

why do you get decorticate posturing?

A

a lesion to the corticospinal tract means the rubrospinal takes over

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12
Q

why do you get decerebrate posturing?

A

a lesion in the corticospinal and rubrospinal tract means reticulospinal takes over

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13
Q

decerebrate posturing scores _ on a GCS score for motor function

A

2

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14
Q

decorticate posturing scores a _ on a GCS score for motor functioning

A

3

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15
Q

gracile nucleus control whats part of the body in DCML?

A

lower body

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16
Q

cuneate nucleus controls what part of the body in DCML?

A

upper body

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17
Q

brown sequard syndrome affects how much of the spinal cord?

A

1 side only (hemisection)

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18
Q

anterior cord syndrome is caused by…

A

infarction to ant spinal artery

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19
Q

patient stabbed in the back presenting with ipsilateral paralysis and decreased sensation

A

brown-sequard

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20
Q

weakness in upper body over lower body, cape like loss of sensation

A

central cord syndrome eg syringomyelia

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21
Q

a chiari malformation is associated with what condition

A

syringomyelia

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22
Q

name the 2 types of dura

A

periosteal

meningeal

23
Q

young patient with head trauma with a haemorrhage

A

extradural

24
Q

imaging findings of extradural haemorrhage

A

hyperdense biconvex lens appearance

25
low impact head trauma in an older patient causing haemorrhage?
chronic subdural haemorrhage
26
presentation of chronic subdural hameorrhage
progressive headache and confusion
27
"hypodense crescent shaped appearance"
chronic subdural haemorrhage
28
subarachnoid haemorrhage is mainly caused by an issue with ___ blood supply
arterial
29
how is definitive diagnosis for SAH found?
CT angiogram
30
"hyperdense signal in SA space"
subarachnoid haemorrhage
31
spontaneous SAH cause
berry aneurysm most likely
32
a hemorrhage in the bridging cerebral vein will arise between what menines?
dura | arachnoid
33
acute SAH will show up white on CT T or F
T
34
patient with HT, bradycardia, irregular bleeding and extensor response.....
cerebral herniation from increased ICP
35
what type of herniation can cause an unreactive pupil
uncal herniation
36
what does it mean if hoffman's sign is positive?
the patient has an UMN lesion
37
define radiculopathy? what MN signs does it cause?
nerve pain along a specific nerve that has been damaged | LMN lesions
38
myelopathy causes what MN signs?
UMN
39
what investigation would differeniate between spinal stenosis and vascular claudication
ABPI - if normal lumbar stenosis
40
middle part of brain is supplied by,,,
ACA
41
main 3 symptoms of ant circulation stroke (middle, ant or both)? how do you decifer between partial and total?
higher cerebral dysfunction eg speech issue homonomous visual field defect ipsilateral motor/sensory deficit of at least 2 areas ``` 2/3 = partial ant stroke 3/3= total ant stroke ```
42
main 3posterior circulation stroke symptoms
cerebellar dysfunction isolated homonymous visual field defect cranial nerve dysfunction NO ARM/LEG INVOLVEMENT
43
main symptoms of lacunar stroke
a pure motor or pure sensory loss
44
main function of the parietal lobe
comprehension of language | R+L brain stuff eg knowledge of body parts
45
primary auditory cortex is located in...
superior temporal gyrus
46
oculomotor nucleus is located in...
the midbrain
47
a left superior quadrantopia indicates a lesion in what lobe and side of the brain
right temporal lobe
48
if you're right handed your dominant brain side is...
the left
49
there is impaired __gaze in hydrocephalus
up
50
"cluster" headache with ptosis and miosis.... | why is this the diagnosis
carotid dissection | sympathetics will be damaged from the dissection so pupil wont dilate
51
3rd nerve palsy can be due to an aneurysm in what artery?
posterior communicating artery
52
obese lady on the pill who has headaches worse on coughing and double vision...
IIH
53
most likely nerve palsy in IIH
6th nerve palsy