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Neurobiology > Cerebellum and basal ganglia > Flashcards

Cerebellum and basal ganglia Flashcards

1
Q

What side of the body does the cerebellum control?

A

Ipsilateral

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2
Q

What are the folds of the cerebellum called?

A

Folia

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3
Q

What is the middle section of the cerebellum called?

A

Vermis

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4
Q

What is the lateral and intermediate sections of the cerebellum called?

A

Lateral and intermediate zone of the hemisphere

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5
Q

What is found on the inferior aspect fo the cerebellum?

A

Flocculonodular lobe

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6
Q

From what nucleus does the flocculonodular lobe receive inputs?

A

Vestibular nucleus

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7
Q

What type of fibres does the flocculonodular lobe receive from the vestibular nucleus?

A

Mossy fibres

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8
Q

Name the deep cerebellar nuclei

A

Dentate, emboliform and globose = interposed, festigal nucleus

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9
Q

Where is the dentate nucleus found?

A

Lateral zone of hemisphere

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10
Q

Where is the interposed nucleus (emboliform and globose) found?

A

Intermediate zone of hemisphere

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11
Q

Where is the festival nucleus found?

A

Vermis of cerebellum

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12
Q

What makes up the interposed nucleus?

A

Emboliform and globose nucleus

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13
Q

What is the deep cerebellar nucleus of the flocculonodular lobe?

A

Vestibular nucleus

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14
Q

What pathway transmits motor parts of cerebral cortex to cerebellum?

A

Pontocerebellar pathway

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15
Q

What pathway transmits proprioceptive input from the whole body via the inferior olive?

A

Olivocerebellar pathway

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16
Q

What fibres transmits information from the inferior olive to the cerebellum?

A

Climbing fibres

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17
Q

What fibres transmits all cerebellar afferents other than from the inferior olive?

A

Mossy fibres

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18
Q

What makes up the vestibulocerebllum?

A

Flocculonodular lobe and vermis

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19
Q

What is the function of the vestibulocerebullum?

A

Posture and balance from vestibular nucleus

20
Q

What makes up the spinocerebellum?

A

Vermis, fastigal nucleus, intermediate zone of hemisphere, globose and emboli form nuclei

21
Q

What is the function of the spinocerebellum?

A

Updates ongoing movement

22
Q

What provides input to the spinocerebellum?

A

Pontine nucleus, olivary nucleus

23
Q

What makes up the neocerebellum?

A

Lateral zone of hemisphere and dentate nucleus

24
Q

What is the function of the neocerebellum?

A

Initiation and planning of movement

25
Q

What provides the input to the neocerebellum?

A

Inferior olivary nucleus

26
Q

Where does information from he neocerebellum go?

A

Pre-motor cortex, supplementary motor cortex via the thalamus

27
Q

What cells to mossy fibres interact with in the cerebellum?

A

Granule cells

28
Q

What fibres do granule cells give rise to?

A

Parallel fibres

29
Q

What do the parallel fibres interact with?

A

Purkinje cells

30
Q

Is each parallel fibre unique to each Purkinje cell?

A

No

31
Q

Is each climbing fibre unique to each Purkinje cell?

A

Yes

32
Q

Where does the output of the purkinje cells go?

A

Deep cerebellar nucleus

33
Q

Are the deep cerebellar nuclei inhibitory or excretory?

A

Inhibitory

34
Q

If the information is from the hemisphere where will the deep cerebellar nuclei send its axons?

A

Thalamus

35
Q

If the information is from the vermis where will the deep cerebellar nuclei send its axons?

A

Red nucleus

36
Q

How does modification of ongoing movement occur?

A

Proprioceptive information from the inferior olive to the cerebellum (climbing fibres) to interposed nucleus (via purkinje cells) to red nucleus and down the rubrospinal tract

37
Q

How does planning and prediction of movement occur?

A

Basal ganglia sends information to cerebellum (mossy fibres). From purkinje cells to dentate nucleus to the thalamus to motor cortex (corticospinal tract)

38
Q

What fibres form the outputs of the olivary nuclei?

A

Climbing fibres

39
Q

What would a lesion in the vestibulocerebellum cause?

A

Staggering gate

40
Q

What would a lesion in the spinocerebellum cause?

A

Decomposition of movements

41
Q

What would a lesion in the portico-cerebellum cause?

A

Slow speech

42
Q

What are the nuclei of the basal ganglia?

A

Putamen, caudate, globus pallidus, substantia nigra, subthalamic

43
Q

What does the putamen circuit control?

A

Subconsious execution of learn patterns

44
Q

Where does the putamen receive input from?

A

Prefrontal cortex, supplementary motor cortex, somatosensory cortex

45
Q

What is the function of the caudate circuit?

A

Cognitive planning

Neurobiology (21 decks)

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