cerebellum

Question 1

spinocerellum/paleocerebellum is made up of

Answer 1

1. vermal zone and paravermal cerebellar cortex
2. paravermal zone
3. vermal zone

Question 2

paravermal zone

Answer 2

1. connection through the interposed nuclei

2. fine tune limb movements

Question 3

vermal zone

Answer 3

1. efferent connections through the fastigial nucleus
2. involved in control of axial musculature, posture, balance
3. integration of head/eye movement

Question 4

Corticocerebellum/ neocerebellum

Answer 4

1. Lateral portions of lobes
2. connections through dentate nucleus
3. Involved in higher level movement coordination
4. Planning and initiating movment

Question 5

vestibulocerebellum is made of

Answer 5

floculonodular lobe

Question 6

vestibulocerebellum is connected to

Answer 6

vestibular nucleus of the medulla

Question 7

Cerebellum is attached to BS via

Answer 7

1. ICP
2. MCP
3. SCP

Question 8

ICP carries

Answer 8

Carry major inputs to cerebellum

Question 9

MCP carries

Answer 9

Carry major inputs to cerebellum

Question 10

SCP carries

Answer 10

Carry major outputs to cerebellum

Question 11

cerebellar efferent connections

Answer 11

mostly via deep nuclei of cerebellum

1. vermal cerebellum
2. paravermal
3. lateral

Question 12

Vermal cerebellar efferent

Answer 12

1. Through fastigial nucleus
2. sends efferent info to the vestibular nucleus and pontine reticular formation
3. Info descends in medial descending system via the lateral vestibulospinal tract and pontine reticulospinal tract
4. Some neurons of floculonodular lobe make direct connections with vestibular nucleus without synapsing in fastigial nucleus
5. Equilibrium and posture control

Question 13

paravermal cerebellar efferent

Answer 13

1. through interposed nuclei
2. info goes to contralateral red nucleus
3. motor output directed through rubrospinal tract (part of lateral descending system)

Question 14

lateral cerebellar efferent

Answer 14

1. info send via dentate nucleus
2. goes to contralateral ventrolateral thalamus
3. projects to primary motor cortex, associated motor cortex and other elements of cortex

Question 15

afferent cerebellar connections

Answer 15

1. floculonodular lobe
2. vermal and paravermal zones
3. lateral

Question 16

floculonodular lob afferents

Answer 16

vestibular input

Question 17

vermal and paravermal afferent

Answer 17

1. SC input

2. 2 somatotopic distributions, arranged head to head with axial body more medial and limbs more lateral

Question 18

lateral cerebellar afferents

Answer 18

1. no direct afferents.
2. cortex projects to pontine nuclei, which projects and ends in lateral zone
3. contains collateral CST and corticobulbar fibers
4. cortical input is from contralateral cortex