Cerebellum Part 2: Flashcards

1
Q

Input to and output from the cerebellum is via the ?

A

cerebellar peduncles

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2
Q

T/F; the ventral spinocerbellar tract originates from interneurons around the margins of central gray matter

A

true

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3
Q

Does the ventral spinocerbellar tract cross over in the spinal cord ?

A

yes

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4
Q

T/F: The ventral spinocerbellar tract enters the inferior cereal penducle

A

false: superior

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5
Q

Rostral spinocerebellar tract coveys info about the?

A

information is about upper limb

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6
Q

cuneocerebellar tract is travelling in fasciculus ______ pathway

A

cuneatus

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7
Q

which 2 spinocerebellar tracts convey info about the upper limb?

A

cuneocerebellar tract and rostral

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8
Q

Corticopontine fibres: send projections to _____ nuclei

A

pontine

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9
Q

The pontocerebllar pathway has fibres cross midline in pons and enter contralateral ?

A

middle cerebellar peduncle

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10
Q

. Vestibular Inputs:vestibular neurons in vestibular nuclei send projections to ?

A

vermis and floculonodular lobe

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11
Q

Olivocerebellar fibres: provide input for _____ and ____ functions of the cerebellum

A

learning and memory functions

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12
Q

From the Lateral zones:

• purkinje fibres project to the ______ nucleus

A

deneate

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13
Q

T/F: Lateral zones: reach contralateral VPL nucleus of thalamus

A

ventral lateral (VL)

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14
Q

which zone has pathways between pre-frontal cortex and cerebellum to influence cognitive function, such as mental problem-solving?

A

lateral

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15
Q

Intermediate zones: influence lateral or medial corticospinal tract

A

lateral

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16
Q

The Intermediate zones also project to contralateral red nucleus in midbrain to influence which tract?

A

rubrospinal tract

17
Q

define intention tremor

A

terminal tremor at the end of movement:

18
Q

Vermis has purkinje fibres that project to the_____ nucleus

A

fastigial

19
Q

Lesions to the vermis can cause?

A

disturbances of equilibrium and balance

20
Q

the floculonodular lobe receives its inputs from the _______ nuclei

A

vestibular

21
Q

T/F: outputs from the vestibular nucle project directly back to vestibular nuclei

A

true

22
Q

Lesions to the Floculonodular Lobe can cause ?

A
  • nystagmus

- vestibulo-ocular reflex disruption

23
Q

massive integration of information in the cerebellum allows the cerebellum to function as a _______ between the intended and the real motor performance

A

comparator

24
Q

Cerebrovascular artery infarct

most commonly affects ?

A

superior cerebellar artery or

posterior inferior cerebellar artery

25
Q

large cerebellar infarcts can cause cerebellar swelling, leading to block of the ______ ventricle apertures and hydrocephalus

A

4th

26
Q

what are 4 other Causes of Cerebellar Disorders?

A
  • head trauma
    • multiple sclerosis
    • brain tumours
    • toxins, such as alcohol