Cerebellum part 1

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1. Which of these statement are incorrect?

  • Neocerebellum is the cerebral part and is the largest part but all embyologically the newest part
  • Efferent fibres comes Superior cerebellar peduncles and fastigal nucleus in inferior cerebellar nucleus
  • Efferent divisions = vestibular cerebellum and lateral hemisphere
  • Afferent division = spinocerebellar and pontocerebellar
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2. Which of these is an afferent tract?

  • corticospinal
  • spinocerebellar
  • rubrospinal tract
  • corticobulbar
  • vestibulospinal
  • reticospinal

3. Which of these is the afferent fibres in the neocerebellar part?

  • From vestibula nuclei in pons and medulla (vestibullar apparatus from the inner ear) to the cortex ipsilateral to fluccolonodular lobe via vestibulocerebellar tracts
  • dentate nucleus to the red nucleus and the ventral lateral nucleus of the thalamus to the motor cortex of frontal lobe which then forms the corticospinal and corticobulbar pathways
  • from cerebral cortex (planning of movement) to pontine nuclei. Goes contralateral via the middle cerebellar peduncle to end in lateral parts of the cerebellum (cortico-ponto-cerebral tract)
  • Dorsal and ventral spinocerebellar tracts from muscles, joints and cutaneous receptors enters cortex ipsilateral via inf. and sup. cerebellar peduncles

4. Which efferent tract of the Paleocerebellum?

  • the corticol fibres goes to the globose and emboliform nuclei then to the red nucleus in the midbrain via superior cerebellar peduncles to then form the descending rubrospinal tracts
  • projects to fastigial nucleus which then goes to vestibular nuclei and reticular formation
  • dentate nucleus to the red nucleus and the ventral lateral nucleus of the thalamus to the motor cortex of frontal lobe which then forms the corticospinal and corticobulbar pathways

5. Which of these statements of the tracts to the archicerebellum is incorrect?

  • Efferent fibres= projects to fastigial nucleus which then goes to vestibular nuclei and reticular formation
  • It affects the LM system bilaterally via descending vestibulo-spinal and reticospinal tracts
  • Afferent = Dorsal and ventral spinocerebellar tract from muscle and joint and cutaneous receptors to enter the cortex ipsilaterslly from vermis and paravermis via inf. and sup. cerebellar peduncles.
  • afferent fibres= From vestibula nuclei in pons and medulla to cortex of ipsilateral flocculo-nodular lobe

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