Cerebellar Dysfunction Flashcards
What is the role of the cerebellum
Timing, coordinating and integration of movements, including the eyes and speech
The cerebellum is structurally composed of three main parts, what are they?
- Cerebellar cortex
- Deep Cerebellar nuclei
- Cerebellar Peduncles
All of the three structural sections of the cerebellum receive afferent input, which section is responsible for most of the efferent output?
Deep cerebellar nuclei
What 3 systems does the Cerebellum participate in ?
- Vestibulo-cerebellar
- Spino-cerebellar
- Cerebro-cerebellar
What is the function of the Vestibulo-cerebellar system
To modulate Vestibular influence on posture and eye movements
What is the function of the Spino-cerebellar system?
Regulates muscle tone, posture and locomotion
What is the function of the Cerebro-cerebellar system?
Plays a role in regulating skilled movements
What are the three lobes of the cerebellum
- Anterior
- Posterior
- Flocculonodular
What are the three functional zones of the cerebellum
- medial zone (or vermis)
- Intermediate zone
- Lateral zone
Along with the three functional zones, which structural lobe is considered a seperate functional zone itself ?
Flocculonodular
Which functional zone recieves input from vestibular afferents and vestibular nuclei
Flocculonodular
What three functions does the Flocculonodular region participate in control of?
- Eye movements
- Balance
- Locomotion
Which functional region plays a role in regulating extensor tone and sustaining upright stance ?
Medial zone (vermis)
Which functional zone uses feed-forward mechanisms to plays a role in precision in timing of muscle contractions, for example, dexterity tasks
Lateral zone
A unilateral lesion of the Left side of the Cerebellum, will likely affect what side of the body
Left
What are the three cerebellar Peduncles
- Superior
- Middle
- Inferior
What three parts comprise the Cerebellar cortex
- Spinocerebellum
- Cerebrocerebellum
- Vestibulocerebellum