Cerebellum 2
Terms
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copy deck
- Inferior cerebellar peduncle
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mostly input fibers
-olivocerebellar
dorsal spinocerebellar
cuneocerebellar
reticulocerebellar
juxtarestiform body (incoming vestibulocerebellar)
(outgoing cerebellovestibular connections) - Middle cerebellar peduncle
- entirely input fibers
- Superior cerebellar peduncel
- mostly output fibers, some input
- Cerebral nucleii (medial to lateral)
- Fastigal, interposed, dentate
- exitatory input to the cerebellar nucleii
- from climbing and mossy fibers
- Inhibitory input to the cerebellar nucleii
- Purkinje neurons
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Posterior lobe
Give functional name, and phylogenic name -
Pntocerebellum or Cerebrocerebellum
Neocerebellum -
Anterior lobe
Give functional name, and phylogenic name -
Paleocerebellum
Spinal cerebellum -
Flocculonodular lobe
Give functional name, and phylogenic name -
Archicerebellum
Vestibulocerebellum - Posterior lobe syndrome
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Ataxia (loss coordination of voluntary movements)
Low mm tone
Intension tremor
Dysmetria (overshooting target)
Dysdiadochokinesia -inability to perform rapid alternating movements
-Explosive speech
COMMON CAUSE: cerebral vascular accident, tumor, trauma, degenerative diseases) - Anterior Lobe Syndrome
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Gait instability
COMMON CAUSE: Alcoholism, malnutrition - Flocculonodular Lobe Syndrome
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Trunchal Ataxia
COMMON CAUSE: medulla blastoma in young children