Cerebellum Flashcards
What do the superior cerebellar peduncles mainly contain?
Efferents
What do the middle cerebellar peduncles mainly contain?
Afferents
What do the inferior cerebellar peduncles contain?
Afferents and efferents
Why are the cerebellar peduncles clinically important?
They are located close to the reticular formation
What are the four nuclei found in the cerebellum?
Dentate
Globose
Emboliform
Fastigial
Which two cerebellar nuclei form the interposed nuclei?
Globose and emobliform
How many layers of the cerebellar cortex are there?
3
What are the three cerebellar cortical layers composed of?
- molecular
- Purkinje
- granule
What two fibres are found in the cerebellar cortex?
Mossy and climbing
How does the cerebellum receive sensory and motor inputs?
Motor information from frontal and parietal cortices to the pons then to cerebellum
Sensory information from vestibular nuclei, inferior olives, and spinal cord to cerebellum
What are the two destinations for cerebellar outputs?
Vestibular nuclei
Primary motor/premotor cortices
Which cerebellar nuclei sends information to the vestibular nuclei?
Fastigial
Which cerebellar nuclei send information to the motor areas of the frontal lobe?
Interposed and dentate via the thalamus
What is the function of the vestibulocerebellum?
Balance and reflex eye movements
What is the function of the spinocerebellum?
Ongoing movements and muscle tone in regard to stance and gait
