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CLASS 5 IVANE > cerebellar system > Flashcards

cerebellar system Flashcards

1
Q

what is the main part of the cerebellum system?

A

the cerebellum

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2
Q

function of the cerebellum?

A
  • modifies our motor commands
  • voluntary movement
  • cognitive function
  • motor learning
  • co ordination
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3
Q

location of cerebellum?

A

posterior fossa, below the occipital lobe by the tentorium cerebellum

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4
Q

what is the tentorium cerebelli

A

the fold of the dura mater that seperates the cerebrum from the cerebelli

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5
Q

three major components of the cerebellum are ?

A
  1. vestibulocerebellum
  2. spinocerebellum
  3. cerebrocerebellum
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6
Q

how many pair of nuclei does the cerebellum have?

A

4

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7
Q

what are the 4 pairs of nuclei of the cerebellum ?

DEGF

A
  1. dentate
  2. emboliform
  3. globose
  4. fastigial
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8
Q

spinal tracts names ( 4 )

A
  1. dst - doral spinocerebellar tract
  2. vst - vestibulospinal cerebellar tract
  3. ct - cuneocerebellar tract
  4. spino-olivary tract
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9
Q

nucleus termination of dorsal spinocerebellar tract

c8 - l2/l3

A
  1. DRG
  2. CLARKS NUCLEUS of posterior grey horn
  3. cerebellum ( via inferior peduncle )
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10
Q

nucleus termination of ventral spinocerebellum tract

below l2/l3

crosses over twice

A
  1. drg
  2. dorsal grey horn
  3. cerebellum ( via superior peduncles)
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11
Q

cuneocerebellar tract
c1 - c8

A
  1. drg
  2. accesory cunate nucleus
  3. cerebellum
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12
Q

cerebellum examinations

A
  • finger to nose = dysmetria, intention tremor)
  • rapid alternating test = dysdiadochokinesia
  • TANDEM gait (heel to toe) = ataxic gait, intention tremor
  • heel-to-knee-to-shin = dysmetria
  • rebound test = extrapyramidl hypotonia
  • the one where you push the portion of the mediasternum and observe adjustment of balance = 2/3 steps to gain balance or they fall down
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13
Q

what is ataxia and how does it arise ?

A

cerebellar lesions = IRREGULAR UNCOORDINATED MOVEMENT

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14
Q

types of ataxia

A
  1. peripherial
  2. cerebrum
  3. cerebellum
  4. vestibular
  5. spinal / tabetic / sensitive
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15
Q

types of cerebellar ataxia

A
  1. static
    2., dynamic
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CLASS 5 IVANE (2 decks)

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