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Flashcards in cerebellum Deck (18)
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spinocerellum/paleocerebellum is made up of

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


paravermal zone

1. connection through the interposed nuclei
2. fine tune limb movements


vermal zone

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


Corticocerebellum/ neocerebellum

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


vestibulocerebellum is made of

floculonodular lobe


vestibulocerebellum is connected to

vestibular nucleus of the medulla


Cerebellum is attached to BS via

1. ICP
2. MCP
3. SCP


ICP carries

Carry major inputs to cerebellum


MCP carries

Carry major inputs to cerebellum


SCP carries

Carry major outputs to cerebellum


cerebellar efferent connections

mostly via deep nuclei of cerebellum
1. vermal cerebellum
2. paravermal
3. lateral


Vermal cerebellar efferent

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


paravermal cerebellar efferent

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


lateral cerebellar efferent

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


afferent cerebellar connections

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


floculonodular lob afferents

vestibular input


vermal and paravermal afferent

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


lateral cerebellar afferents

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