Cerebellum Flashcards
List 4 functions of cerebellum?
1) Maintenance of posture and balance
2) Maintenance of muscle tone
3) Coordination of voluntary movements
4) Precise control, fine adjustment & coordination of motor activity
What is responsible for co-ordination of voluntary movements?
Cerebellum
Label
Where is cerebellum?
Posterior cranial fossa
What 3 lobes cerebellum?
Superior
Middle
Inferior
What covers cerebellum?
Cerebellar cortex
3 layers
What are 3 layers of cerebellar cortex?
Molecular (outside)
Purkinje (middle)
Granule (inner)
What is outside layer of cerebellar cortex?
Molecular
What is inner layer of cerebellar cortex?
Granule
What 2 types neurons present in molecular layer of cerebellar cortex? What function
Stellate (GABA)
Basket
Which layer of cerebellar cortex provides efferent pathway to cerebellum?
Input
Purkinje- efferent- away CNS
Climbing fibres
Which layer of cerebellar cortex receives input from mossy fibres?
Granule
Mossy
What are 2 inputs in cerebellar cortex?
Mossy fibres
Climbing fibres
Where peduncle are mossy fibres present? (middle)
Afferents or efferent
End?
Neurotrans- excite or inhib?
All afferents except inferior olivary nuclei
End granule layer
Glutamergic- excitatory
