Neuro pt 2 Flashcards

1
Q

what does MI represent

A

primary motor cortex

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2
Q

where are the nasal retinas

A

more medial, toward the nose

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3
Q

alexia

A

impaired reading ability

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4
Q

where is the right visual field represented

A

left visual cortex and thalamus

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5
Q

what tracts are a part of the lateral pathways

A

corticospinal
rubrospinal

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6
Q

what area is M1 in

A

area 4

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7
Q

loss of sensory info
recognition/association

A

agnosia

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8
Q

what is a wedge vertebral fracture

A

compression fracture where anterior part of the vertebrae collapses

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9
Q

how is the motor cortex organized

A

topographically

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10
Q

what are the 4 major lobes

A

frontal
parietal
temporal
occipital

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11
Q

where is the visual cortex

A

the occipital lobe

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12
Q

what is the tectospinal tract responsible for

A

mediating reflexes to visual stimuli

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13
Q

where does the right visual field project to

A

the right nasal retina
left temporal retina

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14
Q

what is locked in syndrome

A

patients are aware and can think but are paralyzed and cannot communicate

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15
Q

name two things that happen when there is damage ot upper motor neurons

A

interference with voluntary movements
weakness/paralysis on the contralateral side of the body

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16
Q

where does the vestibulospinal tract start and end

A

medualla
spinal cord

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17
Q

where does the tectospinal tract originate

A

the midbrain

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18
Q

what is the grey matter of the brain

A

nerve cell bodies

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19
Q

what causes non fluent aphasia

A

damage to brocas area

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20
Q

receptive or seonsory aphasia

A

inability to read/understand the spoken word due to inability to process info in the brain

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21
Q

global aphasia

A

combination of expressive and receptive aphasia

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22
Q

when does a decerebrate response occur

A

when a person has a brain stem lesion

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23
Q

what is aphasia

A

inability to comprehend or express language

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24
Q

impaired reading ability

A

alexia

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25
Q

what is hemianopia

A

loss of vision on either one or both eyes, either partially or completly

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26
Q

what does the premotor cortex control and where would you find it

A

skilled movements in the frontal lobe

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27
Q

what is a dislocation vertebral fracture

A

vertebra forced out of its normal position

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28
Q

what would you see with damage to a particular fiber

A

partial loss

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29
Q

the optic fibers from what retina CROSS in the optic chiasm

A

the nasal retinas

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30
Q

what does the medulla control

A

resp and cardio function
cough reflex, swallowing, vomiting

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31
Q

damage to what side of the brain causes behavioural problems

A

right

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32
Q

a strong unexpected visual stimulus activates what part of the tectospinal tract

A

the superior colliculus

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33
Q

agnosia

A

loss of (word?) recognition/association

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34
Q

what side of the LGN receives input from the left visual field

A

the right LGN

35
Q

motor dysfunction that affects the muscles used in speech

A

dysarhria

36
Q

what is a compression vertebral fracture

A

crushed or shattered bone in multiple fragments

37
Q

what are the two stages of post-trauma to the spinal cord

A

spinal shock
recovery

38
Q

what is dysarhria

A

motor dysfunction that affects the muscles used in speech

39
Q

what would you see with damage at the optic tract or occipital lobe

A

loss of visual field on side opposite to that of the damage

40
Q

what spinal segement has many motoneurons that are necessary for control of arm and hand muscles

A

cervical enlargement

41
Q

when does a decorticate response occur

A

when there is severe damage in a hemesphere

42
Q

injury in what area causes expressive aphasia

A

brocas

43
Q

impaired writing ability

A

agraphia

44
Q

non fluent aphasia

A

slow and labored short phrases

45
Q

what is the auditory cortex responsible for/ where is it

A

hearing
temporal lobe

46
Q

what would you see with damage to the optic chiasm

A

complete loss of sight

47
Q

what is a vegetative state

A

patient has no awareness, and is not responsive to stimuli, but brainstem function still works

48
Q

what is spinal shock

A

all neurological activity is shut down - no reflexes (can last for days or weeks)

49
Q

agraphia

A

impaired writing ability

50
Q

what are the 3 parts of the frontal lobe

A

premotor cortex
motor cortex
brocas area

51
Q

what does the pons link togeteher

A

the cerebellum and cerebrum

52
Q

what does the corticospinal tract initiate

A

movements and modulate spinal reflexes

53
Q

inability to comprehend or express language

A

aphasia

54
Q

what are the two kinds of routes for control of spinal motor neurson

A

lateral
ventromedial pathways

55
Q

injury in what area causes receptive aphasia

A

wernickes

56
Q

where is the somatosensory area

A

the parietal lobe

57
Q

if a brain damage patient presented with loss of logical thinking, communication and analytical skills, what side of his brain was damaged

A

left

58
Q

what does the corticospinal tract terminate on

A

motor neurons and interneurons

59
Q

fluent aphasia

A

normal speaking pace but made up words

60
Q

what layers of the LGN recieve input from the nasal retinas

A

1,4,6

61
Q

where would you find the white matter of the brain

A

corpus callosum

62
Q

what does the thalamus do

A

relays and integrates sensory impulses

63
Q

what layers of the LGN recieve input from the temporal retina

A

2,3,5

64
Q

what is brocas area and where would you find it

A

a part of the brain responsible for speech expression in the frontal lobe

65
Q

what spinal segement has many motoneurons that are necessary for control of leg and feet muscles

A

lumbar enlargement

66
Q

what spinal segement has fewer motoneurons and control the torso muscles

A

thoracic segments

67
Q

what is a simple vertebral fracture

A

single line break

68
Q

what causes fluent aphasia

A

damage to wernickes area

69
Q

the optic nerve fibers from the ____ _____ retina cross in the optic chiasm

A

right nasal

70
Q

what is the white matter of the brain

A

myelinated nerve bundles

71
Q

expressive or motor aphasia

A

impaired ability to speak/write fluently and apropriately

72
Q

what tracts are a part of the ventromedial pathways

A

tectospinal tract
vestibulospinal
pontine reticulospinal
medullary reticulospinal

73
Q

where are the temporal retinas

A

on the lateral side of the retina

74
Q

the optic nerve fibers from the right nasal retina join what fibers that stay on the left side

A

left temporal retina

75
Q

what part of the spinal cord are motoneurons located

A

the ventral horn

76
Q

what is the olfactory cortex responsible for and where is it

A

smell
temporal lobe

77
Q

what causes global aphasia

A

major brain damage

78
Q

what does the motor cortex control and where would you find it

A

voluntary movements in hte frontal lobe

79
Q

name two things that happen when there is damage to lower motor neurons

A

weakness/paralysis on the SAME side of the body
weakness/paralysis at and below the level of the spinal cord damage

80
Q

what is a decorticate response

A

rigid flexion in the upper limbs, extension of hte lower limbs

81
Q

what is the vestibulospinal tract responsible for

A

upper posture maintenance
vestibulospinal reflexes (balance and posture)

82
Q

what is wenickes area responsible for and where is it

A

speech comprehension
temporal lobe

83
Q

what is a decerebrate response

A

both uppper and lower limbs are extended and the head and body are arched

84
Q

where does the corticospinal tract run from

A

M1 to the contralateral spinal cord