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Neuroscience > 03 JULY 2019 > Flashcards

03 JULY 2019 Flashcards

1
Q

pontocerebellar is

A

intended control

what want to do

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2
Q

spinocerebellar is

A

what you are actually doing

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3
Q

brainstem / motor cortex

A

are the corrections

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4
Q

purkinji cells handle

A

output from the cerebellar cortex

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5
Q

white matter deep in the cerebellum handles

A

projections to cerebellar nuclei

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6
Q

cerebellar nuclei project to the

A

brain-stem UMN

cerebral cortex UMN

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7
Q

vertical divisions has what three things?:

A

midline vermis
paravermal hemisphere
lateral hemisphere

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8
Q

inferior input comes from

A

the spinal cord and the brainstem

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9
Q

cerebellar peduncles handle

A

inferior input which….
middle input which…
superior input which…

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10
Q

middle input comes from

A

input from pontine nuclei

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11
Q

superior input comes from

A

output to brainstem and cerebral cortex

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12
Q

the vertical divisions include :

A

midline vermis
paravermal hemisphere
lateral hemisphere

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13
Q

the punkinje cells

A

take results of processing and takes them to the base of the cerebellum

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14
Q

deep cerebral nuclei takes messages to the

A

brainstem UMN

cortex UMN

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15
Q

so the deep cerebral nuclei take message of:

A

fine and gross motor

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16
Q

inputs from the spinal cord are

A

spinocerebellar

  • discriminative touch
  • nonconscious proprioception
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17
Q

inputs from the reticular formation:

A
  • level of arousal

- sense of urgency

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18
Q

the svestibular system inputs are

A

“inner ear”

head movement pull of gravity

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19
Q

what inputs are the what I am really doing:

A

spinal cord
reticular formatino
vestibular system

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20
Q

the inputs that are what I meant to do is

A

ponte nuclei

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21
Q

inputs from the ponte nuclei are

A

the verox copy

they go from the cerebrum - pons - cerebellum

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22
Q

the verstibulocerebellum has what structure?

A

flocculondodular lobe

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23
Q

the spinocerebellum division has what structure?

A

the vermis adn the paravermis

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24
Q

the cerebrocerebellum division has what structure?

A

the lateral hemispheres

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25
Q

what is the input for the vestibulocerebellum?

A

the vestibular receptors

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26
Q

what is the output for the vestibular nuclei?

A

vestibular neclei (then to_

  • eye muscles
  • postural muscles
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27
Q

what is the function of the vestibulocerebellum:

A

equilibrium:

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28
Q

vestibulocerebellum

  • input
  • output
  • function:
A
  1. vestibular receptors
  2. vestibular nuclei (then to)
    - eye mm
    - postural mm
  3. equilibrium
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29
Q

why is the grey matter in the cerebellum so PACKED

A

it has all the cells of the verox copy and all the cells of what the body is actually supposed to be doing

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30
Q

the spinocerebellum input:

A

spinocerebellar tract

sensorimotor cortex

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31
Q

the spinocerebellum output:

A
  • medial division:
    cerebral cortex
    brainstem
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32
Q

the medial division of the spinocerebellum output goes to what two things?

A

the cerebral cortex

brainstem

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33
Q

the spinocerebellum function:

A

-control core and proximal mm

34
Q

spinocerebellum

  1. input
  2. output
  3. function:
A 
1. 
spinocerebellar tracts 
sensorimotor cortex 
2. medial division
- cerebral cortex 
- brainstem 
3. core and proximal
35
Q

cerebrocerebellum input

A

cerebral cortex

esp. cerebropontocerebellar

36
Q

cerebrocerebellum output:

A

lateral division UMN

- cerebral cortex

37
Q

cerebrocerebellum functions:

A

coordinate voluntary movement
plan movements
timing

38
Q

cerebrocerebellum
1. input
2 output
3. functions

A
  1. cerebral cortex
  2. lateral division UMN
    - cerebral cortex
  3. coordinate volutnary movement
    plan movements
    timing
39
Q

nonconscious internal feedback pathways have how many pathways?

A

two total

40
Q

each pathway in the nonconscious internal feedback pathway has how many neurons?

A

each pathway has 1 neuron

41
Q

the midline vermis controls:

A

axial skeleton

the midline of “me”

42
Q

the paravermal hemispehre controls:

A

either side of the middle
most proximal joints
shoulder and hips

43
Q

the lateral hemisphere controls the

A

most distal Mm

44
Q

the flocculonodular lobe is not

A

vertical

45
Q

the function of the flocculonoclular lobe is to

A

maintain equilibrium
overall:
plays w/ vertical divisions

46
Q

funny name for the flocculonocular lobe:

A

the handlebar moustache of the cerebellum

47
Q

name three functions regions of the cerebellum:

A
  1. equilibrium
  2. gross movement of limbs
    3 fine distal voluntary
48
Q

equilibrium of the cerebellum handles:

A

keeping you upright against gravity
on balance while doing movement
“anticipatory” movements

49
Q

gross movement of the limbs involves:

A

puts limbs into position of moment

50
Q

fine distal voluntary functions of the cerebellum involves:

A

does all the heavy duty fine control to actually do activity

51
Q

eye muscles in the vestibulocerebllum are important because

A

they help maintain a steady gaze = critical for balance

52
Q

postural muscles in the verstibulocerebellum system?

A

they facilitate the Mm to keep you upright

53
Q

the spinocerebrallar tracts have input for

A

discriminative touch

nonconsicous proproception

54
Q

the sensorimotor cortex tell you

A

what I meant to do

55
Q

vestibulospinal helps

A

keep yourself upright against gravity

56
Q

the medial vestibulospinal helps with

A

core proximal muscles

57
Q

the lateral vestibulospinal helps with

A

rest of LE

58
Q

the restilospinal fx is

A

to keep things up against gravity

59
Q

the spinocerebellar pathway is

A

nonconscious movement

and is four pathway merged into one

60
Q

the function of the spinocerebellar pathway is

A

disciminative touch

nonconscious proprioception that is headed to the cerebellum

61
Q

the spinocerebellar pathway has four important details:

A
  1. has 2 high fidelity pathways
  2. each pathway has 2 neurons
  3. somatosensory input from the body
  4. project to cerebellum ipsilaterally
62
Q

the spinocerebellar pathway projects

A

to the cerebellum ipsilaterally

63
Q

the spinocerebellar has how many pathways and how many neurons

A

2 high fidelity the pathways and 2 neurons per pathway

64
Q

the spinocerebellar input is

A

somatosensory from the body

65
Q

the verox copy comes from the

A

pons

66
Q

the verox copy travels through what pathway

A

the cerbropontocerebellar

67
Q

the verox copy pathway is input forwhaty system?

A

the cerbrocerellum

68
Q

the cerebrocerebellum has how much control over voluntary movement

A

HIGH

69
Q

ataxia def:

A

incoordination not due to muscular weakness

70
Q

three types of damage:

A

vermal and floculonodular damage
spinocerebellar damage
cerebrocerellar damage

71
Q

vermal and floculondular damage leads to

A

truncal axtaxia

- trouble controlling the trunk

72
Q

spinocerebellar damage causes

A

gait ataxia and limb ataxia

trouble walking = getting trunk over the hips

73
Q

cerebrocerebellar damage:

A

hand ataxia

- difficulty w/ hand fine motor coordination

74
Q

spinocerebellum damage causes what two things:

A
  1. gait ataxia

2. limb ataxia

75
Q

gait ataxia means that

A

you have a wide based unsteady staggering

veering

76
Q

gait ataxia means that

A

the trunk is always chasing after the hips

77
Q

truncal axtia means that

A

you have trouble controlling the trunk Mm

78
Q

hand axtia means that

A

you have difficulty with hand fine motor coordination

79
Q

hand ataxia is caused from

A

damage by the cerebrocereballar damage

80
Q

gait ataxia is caused from

A

damage by the spinocerebellum

81
Q

cerebral dysfunction is always

A

ipslateral in affect

Neuroscience (29 decks)

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