Motor Systems: Modulation of Movement by the Cerebellum Flashcards Preview

Integrative Neuroscience > Motor Systems: Modulation of Movement by the Cerebellum > Flashcards

Flashcards in Motor Systems: Modulation of Movement by the Cerebellum Deck (36):
1

The function of the cerebellum is to detect the difference, or ____, between intended movement and actual movement.

motor error

2

The cerebellum influences ____ to reduce motor error.

upper motor neurons

3

The cerebellum does not initiate movement but it contributes to ____, ____, and ____.

coordination
precision
accurate timing

4

The cerebellum receives input from sensory systems of the spinal cord and from other parts of the brain, integrating these inputs to ____.

fine tune motor activity

5

Damage to the cerebellum does not cause paralysis, but instead produces disorders in ____, ____, ____, and ____.

fine movement
equilibrium
posture
motor learning

6

The cerebellar cortex is composed of the ____, ____ and ____.

Cerebrocerebellum
Spinocerebellum
Vestibulocerebellum

7

The deep cerebellar nuclei are composed of ____, ____ and ____.

Dentate nucleus
Interposed nucleui
Fastigial nucleus

8

The cerebellar peduncles are composed of ____, ____ and ____.

Superior ppeduncle
Middle peduncle
Inferior peduncle

9

The cerebrocerebellum receives inputs from the ____.

cortex

10

The cerebrocerebellum is responsible for producing ____ and planning and execution of ____.

skilled movements
spatial and temporal sequences (incl. speech)

11

The spinocerebellum receives inputs from the ____.

spinal cord

12

The lateral spinocerebellum controls movements of ____ muscles while the medial side (____) controls ____ muscles and ____.

distal
vermis
proximal
eyes

13

The vestibulocerebellum receives inputs from the ____.

vestibular system

14

The ____ are folds in the cortical mantle of the cerebellum

folia

15

The superior cerebellar peduncles are ____, the middle ____, and the inferior ____.

efferent
afferent
mixed

16

The pontine nuclei relays inputs from the cortex and superior colliculus via the ____.

middle cerebellar peduncles

17

The infereior olive relays inputs from the spinal cord and brainstem via the ____.

inferior cerebellar peduncle

18

Inputs from the motor, premotor, and association cortices lead to the cerebrocerebellum via the ____.

pontine nuclei

19

Auditory and visual signals lead to the ____.

vermis (middle)

20

Vestibular inputs come from ____.

CN VIII

21

Output from the cerebellar cortex goes to ____ and then (via ____) to the thalamus, which controls ____.

deep cerebellar nuclei
superior cerebellar peduncle
upper motor neurons in the cortex

22

Descending outputs from deep cerebellar nuclei to the brainstem control ____.

axial and proximal limb musculature (posture)

23

The 3 layers of the cerebellar cortex are the ____, ____ and ____.

Molecular
Purkinje
Granule

24

Purkinje cells use the neurotransmitter ____.

GABA (inhibitory)

25

Local circuit neurons in the cerebellum consist of ____, ____, ____ and ____ cells.

Granule (>1/2 of all neurons in entire brain)
Stellate
Basket
Golgi

26

Mossy fibers come from ____.

pontine nuclei

27

Parallel fibers come from ____.

granule cells

28

Climbing fibers wrap around ____ and come from the ____.

purkinje cells
inferior olive

29

Purkinje cells are ____.

inhibitory

30

The climbing fiber transports the ____ to the cerebellum.

motor error signal

31

Climbing fibers are relevant for short-term ____ and long-term ____.

adaption (error control)
motor learning

32

Parallel fibers evoke ____.

single spikes

33

Climbing fibers evoke ____.

complex spikes

34

The spinocerebellum regulates ____.

body and limb movements

35

The vestibulocerebellum regulates ____.

balance and eye movements

36

Cerebellar ataxia

Difficulty producing smooth, well-coordinated, multi-jointed movements