Cerebellum - Revision

Question 1

What is the cerebellum commonly referred to as?

Cerebellum - Revision

Answer 1

The cerebellum is commonly referred to as the “little brain”

Question 2

What percentage of the brain does the cerebellum make up?

Cerebellum - Revision

Answer 2

The cerebellum makes up 10% of the entire brain.

Question 3

How many neurons does the cerebellum contain compared to the rest of the brain?

Cerebellum - Revision

Answer 3

The cerebellum has four times the amount of neurons compared to the rest of the brain.

Question 4

What are the primary functions of the cerebellum?

Cerebellum - Revision

Answer 4

The cerebellum is responsible for coordination of ongoing movement, postural control and balance, and motor learning including timing, rhythm, synchronization, and correction of errors.

Question 5

What does the spinocerebellum coordinate?

Cerebellum - Revision

Answer 5

The spinocerebellum coordinates trunk & gross limb movements by integrating proprioceptive information from muscle spindles, activity levels of neurons in the spinal cord, and motor commands.

Question 6

What is the role of the cerebrocerebellum?

Cerebellum - Revision

Answer 6

The cerebrocerebellum coordinates precise, distal voluntary movements.

Question 7

What functions does the vestibulocerebellum integrate and coordinate?

Cerebellum - Revision

Answer 7

The vestibulocerebellum integrates visual and vestibular input to coordinate motor activities for posture, head, and eye movements.

Question 8

What is ataxia and how is it related to the cerebellum?

Cerebellum - Revision

Answer 8

Ataxia is a clinical disorder characterized by uncoordinated movements with normal strength, and it relates to cerebellum dysfunction.

Question 9

What are intentional tremors?

Cerebellum - Revision

Answer 9

Intentional tremors are a rhythmic, oscillatory, and high amplitude tremor during directed and purposeful motor movements, worsening before reaching the end point, associated with cerebellum issues.

Question 10

What is dysmetria?

Cerebellum - Revision

Answer 10

Dysmetria is the inability to judge distance or when to stop a movement, often seen in cerebellar disorders.

Question 11

?

Cerebellum - Revision

Answer 11

Anterior Lobe:

Question 12

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Cerebellum - Revision

Answer 12

• Superior Peduncle
• Middle Peduncle
• Inferior Peduncle

Question 13

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Cerebellum - Revision

Answer 13

Posterior Lobe:

Question 14

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Cerebellum - Revision

Answer 14

Nodulus: Plays a significant role in the control of balance and vestibular function. It helps in the processing of spatial orientation and motion-related information.

Question 15

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Cerebellum - Revision

Answer 15

Flocculus:

Question 16

?

Cerebellum - Revision

Answer 16

Cerebellar Tonsils:

Question 17

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Cerebellum - Revision

Answer 17

Vermis:

Question 18

?

Cerebellum - Revision

Answer 18

Vermis:

Question 19

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Cerebellum - Revision

Answer 19

Paravermis:

Question 20

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Cerebellum - Revision

Answer 20

Lateral Hemisphere:

Question 21

?

Cerebellum - Revision

Answer 21

Spinocerebellum:

• Functional name for vermis and paravermis regions
• Gross movements of the limbs

Question 22

?

Cerebellum - Revision

Answer 22

Cerebrocerebellum:

• Functional name for lateral hemisphere
• Fine, distal, voluntary movements

Question 23

?

Cerebellum - Revision

Answer 23

Vestibulocerebellum:

• Functional name for the flocculonodular lobe
• Equilibrium

Question 24

Dysarthria = ?

Cerebellum - Revision

Answer 24

Dysarthria: Difficulty speaking due to speech muscles being incoordinated.

Question 25

Dysdiadochokinesia = ?

Cerebellum - Revision

Answer 25

Dysdiadochokinesia: Inability to do rapid alternating movements

Question 26

Decomposition = ?

Cerebellum - Revision

Answer 26

Decomposition: Difficulty of movement in which gestures are broken up into individual segments instead of being executed smoothly