Cerebellum Flashcards

1
Q

Cerebellum differs from that of other motor areas such as the basal ganglia in two major ways (2):

A
  1. unlike most other parts of the CNS, the cerebellum is wired up so that one side affects the ipsilateral side of the body
  2. unlike the basal ganglia, the cerebellum makes extensive use of sensory inputs
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2
Q

spinocerebellum

A

vermis and paravermis (also called the medial hemispheres) form the spinocerebellum

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3
Q

Cerebrocerebellum

A

Lateral hemisphere of cerebellum

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4
Q

Lateral hemisphere nucleus

A

Project to the dentate nuclei which take their name from their variegated, tooth-like appearance in a horizontal section

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5
Q

Paravermis (medial hemisphere) nucleus

A

innervates the interposed nuclei

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6
Q

Vermis nuclei

A

projects to the fastigial nuclei

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7
Q

Flocculondular lobe

A

does not have nucleus within the cerebellum but is extensively interconnected with the vestibular system, using the bestibular nuclei of the brainstem for its output

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8
Q

Lateral Hemisphere inputs

A

Pre and primary motor cortex

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9
Q

Medial Hemisphere inputs

A

Primary motor cortex, some spinal cord

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10
Q

Vermis Inputs

A

Spinal cord, vestibular nuclei

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11
Q

Flocculondodular Lobe Inputs

A

vestibular nuclei

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12
Q

L. Hemisphere deep nucleus

A

dentate

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13
Q

M. Hemisphere deep nucleus

A

interposed

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14
Q

Vermis deep nucleus

A

Fastigial

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15
Q

Flocculondular lobe deep nucleus

A

vestibular nuclei, fastigial

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16
Q

L. Hemisphere outputs

A

Thalamus (VL) to pre-motor cortex

17
Q

M. Hemisphere outputs

A

Thalamus (VL) to primary motor cortex

18
Q

Vermis outputs

A

Vestibular nuclei, reticular formation

19
Q

Flocculondodular lobe outputs

A

vestibular nuclei

20
Q

L. Hemisphere function

A

planning movement

21
Q

M. Hemisphere function

A

correcting movement

22
Q

Vermis Function

A

Adjusting posture

23
Q

Flocculonodular Lobe

A

Balance, coordinated eye movements