cerebellum Flashcards

1
Q

is the cerebellum a UMN

A

no

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2
Q

supratentorial

A

upper portion of the brain
does not include the cere
for higher order processes- like thinking

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3
Q

Cerebellum: Coordination

A

the cere coordinates posture and movement

timing, direction, speed and rate of change in force; adjusting and matching to intent of movement

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4
Q

Cerebellum Current control

A

continuous comparison of performance to internal models of intended action

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5
Q

Knowledge of results cere

A

use of feedback to revise future output over a number of trials

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6
Q

Synergy

A

control of multiple muscle simultaneous
and/or
sequential activation for a patterned movement or postural control

role of the cerbellum

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7
Q

example of a synergist group

A

agonist, synergist and antagonist

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8
Q

Flocculonodular Lobe functional divsion

A

Vestibulocerebellum

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9
Q

Flocculonodular Lobe assocciated deep nucelus

A

Vestibular Nuclei

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10
Q

Flocculonodular Lobe role

A

Balance Adjustments, Eye Movements in response to vestibular inputs

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11
Q

Vermis and Paravermal Areas
functional divsions

A

Spinocerebellum

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12
Q

Vermis and
Paravermal Areas associated deep nueclei

A

Fastigial /
Interposed (globose/emboliform)

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13
Q

Vermis and Paravermal Areas role

A

Postural control, Coordination during execution of a motor act

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14
Q

Cerebellar Hemispheres functional divsion

A

Cerebrocerebellum

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15
Q

Cerebellar Hemispheres associated deep nuclei

A

Dentate

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16
Q

Cerebellar Hemispheres role

A

Refining voluntary movement;
Motor Planning

17
Q

Inferior cerebellar peduncle is afferent or efferent

A

afferent

18
Q

ICP afferent pathway

A

spinal inputs and inferior olivary nucleus fibers to spinocerebellum

19
Q

Middle cerebellar peduncle afferent or efferent

A

afferent

20
Q

MCP pathway

A

cortex > pontine nuclei >cerebrocerebellum

21
Q

Superior cerebellar peduncle efferent or afferent

A

both

more efferents then afferents

22
Q

SCP efferent pathway

A

from cerebrocerebellum to red nucleus and ventral lateral nucleus (of thalamus), back to cortex

23
Q

SCP afferent pathway

A

spinal input (Ventrospinocerebellar)tocerebrocerebellum

24
Q

Three layers to the cortex/gray matter of the cere

A

Molecular layer
Purkinje cell layer
Granule cell layer

25
Q

White matter: two sources of afferent input

A

Mossy fibers

Climbing fibers

26
Q

where do we find Climbing fibers

A

inferior olivary nucleus

27
Q

Inferior cerebellar peduncle- what information

A

Vestibular afferents

Spinocerebellartract fibers: dorsal (DCST)and cuneo(CCT)

Climbing fibers from inferior olivary nucleus (olivocerebellar fibers)

28
Q

Middle cerebellar peduncle - what info

A

Cerebro-pontocerebellar fibers from pontine nuclei

29
Q

Cerebrocerebellar lesion

A

Decomposition planned motor acts
Altered reaction time and movement paths

30
Q

Efferents from cerebrocerebellum via what nuecleus

A

via dentate nucleus

31
Q

Efferents from cerebrocerebellum projecct to

A

cerebral cortex

32
Q

Efferents from cerebrocerebellum functions

A

inmovement planning, ‘starts and stops planned together’, timing of muscles in motor act, other cognitive functions