Cerebellum

Question 1

The cerebellum contains 3 lobes:

Answer 1

1.anterior
2.posterior
3.flocculondular

Question 2

What are the primary functions of the cerebellum

Answer 2

1.movement coordination
2.maintenance of posture
3.maintenance of tone/balance
4.motor learning

Question 3

Cerebellum constitutes only 10% of total brain volume but contains over 80% of its neurons

Question 4

What are the consequences of cerebellar damage

Answer 4

Does not result in complete movement abolition, but does cause severe movement disruption

Question 5

The cerebellum is connected to the dorsal aspect of the brainstem by 3 symmetrical pairs of penducles:

Answer 5

1.superior penducle
2.middle penducle
3.inferior penducle

Question 6

The cerebellar cortex is split into 3 functional sub divisions:

Answer 6

1.cerebrocerebellum
2.spinocerebellum
3.vestibulocerebellum

Question 7

Cerebellar cortex: cerebrocerebellum

Answer 7

1.largest region of the cerebral cortex
2.involved in motor planning

Question 8

Cerebellar cortex: spinocerebellum

Answer 8

1.regulates body and limb movement
2.inputs: vermis, intermediate cortex

Question 9

Cerebellar activity: purkinje cells

Answer 9

1.Each purkinje cell has about 200000 synapses.
2.surface area is very large
3.the dendrites receive afferent input from paralell fibres and the climbing fibre