Cerebellum

Question 1

Functions of the cerebellum

Answer 1

Balance
Feedback + Feedfoward info
Timing
Motor learning

Question 2

Cerebellum creates motor plan for what kind of behavior?

Answer 2

Well-learned behavior

Question 3

Name the three cerebellum lobes

Answer 3

Anterior lobe
Posterior lobe
Flocculonodular lobe

Question 4

The outer cortex is made of?

Answer 4

Gray matter

Question 5

Deep to the cortex is made of what?

Answer 5

White matter

Question 6

Name the 3 cerebellar nuclei deep to the cortex

Answer 6

Fastigial nucleus
Dentate nucleus
Interposed nuclei (globose + emboliform nucleus)

Question 7

What is attached to the cerebrum via large fiber tracts?

Answer 7

Peduncles

Question 8

Name the 3 peduncles

Answer 8

Inferior
Middle
Superior

Question 9

Inferior peduncle is largely for?

Answer 9

Input

Question 10

Is the middle peduncle for input or output?

Answer 10

ONLY input

Question 11

Superior peduncle is largely for?

Answer 11

Output

Question 12

Flocculonodular lobe is also named

Answer 12

Vestibulocerebellum

Question 13

Which cerebellum structures influences postural control, balance, and eye/head movements (VOR)

Answer 13

Flocculonodular/Vestibulocerebellum
Vermis

Question 14

What does the flocculonodular lobe and vermis influence?

Answer 14

Postural control, balance, and VOR

Question 15

Medial Hemisphere is also named

Answer 15

Spinocerebellum

Question 16

What cerebellum structure influences limb movement on positioning, adjusting, and velocity of movement?

Answer 16

Medial Hemisphere/Spinocerebellum

Question 17

What does the medial hemisphere/spinocerebellum influence?

Answer 17

Limb movements: positioning, adjusting, and velocity of movement

Question 18

Lateral Hemisphere is also named

Answer 18

Cerebrocerebellum

Question 19

What cerebellum structure influences on planning/programming of voluntary, learned, and skilled movements?

Answer 19

Lateral Hemisphere/Cerebrocerebellum

Question 20

In/Output diagram = Medial Hemisphere/Spinocerebellum

Answer 20

M1 –> Pontine n. + SC –> Interposed n. –> VA/VL thalamus –> M1

Question 21

In/Output diagram = limb movements: positioning, adjusting, and velocity

Answer 21

(Medial Hemi/Spinocerebellum)
M1 –> Pontine n. + SC –> Interposed n. –> VA/VL thalamus –> M1

Question 22

In/Output diagram = Lateral Hemisphere/Cerebrocerebrum

Answer 22

M1 –> pontine n. –> dentate –> VA/VL thalamus –> M1

Question 23

In/Output diagram = planning/programming: voluntary, learned, skill mvmt

Answer 23

Lateral Hemi/Cerebrocerebrum
M1 –> pontine n. –> dentate –> VA/VL thalamus –> M1

Question 24

Damage to vestibulocerebellum + vermis results in?

Answer 24

Balance disorders
Ataxia

Question 25

Damage to vestibulocerebellum alone?

Answer 25

Impaired eye control
- pursuit eye mvmts
- voluntary eye mvmts

Question 26

Damage to paravermis of spinocerebellum results in (long)

Answer 26

Reduced corticospinal + rubrospinal tracts
Hypotonia
Dysmetria
Ataxia
Intention tremor

Question 27

Reason for hypotonia

Answer 27

Reduced corticospinal and rubrospinal tracts results in decreased excitability of LMNs

Question 28

Reason for dysmetria?

Answer 28

Disruption of accuracy in reaching movements due to timing and adjusting errors

Question 29

Parkinson’s resting tremor vs intention tremor?

Answer 29

Intention tremor is during performance of behavior

Question 30

Damage to cerebrocerebellum results in?

Answer 30

Dysdiadochokinesia
(error in movement timing + delays in initiating)