Tag: Deep cerebellar nuclei

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15. The deep cerebellar nuclei

  1. Receive glutamatergic inputs from Purkinje’s cells. (T/F?)
  2. Most of the output fibers of the cerebellum originate from the deep cerebellar nuclei, with the exception of the fibers from the flocculonodular lobe, witch synapse directly with the inferior olivary nucleus (ION). (T/F?)
  3. The dentate nuclei are situated deep within the lateral hemispheres of the cerebellum and receive most of their connections from the lateral hemispheres  of the cerebellum. (T/F?)
  4. The dentate nucleus can be divided into dorsal (motor) and ventral (nonmotor) domains. (T/F?)
  5. The interposed nucleus is composed of globose nucleus and emboliform nucleus and is located in the vermis. (T/F?)
  6. Fastigial nuclei are paired structures located in vermis. (T/F?)

  1. F
  2. F
  3. T
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  1. The deep cerebellar nuclei receive GABAergic (inhibitory) inputs from Purkinje’s cells.
  2. The fibers from the flocculonodular lobe synapse directly with the vestibular nuclei.
  1. The interposed nucleus is located in the paravermal (intermediate) zone.

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14. Anatomy of the cerebellum

  1. It has about 10% of the total brain volume. (T/F?)
  2. It has about 3.6 times less neurons than there is in the neocortex. (T/F?)
  3. Two cerebellar peduncles connect cerebellum with the rest of the brain. (T/F?)
  4. The cerebrocerebellum, or neocerebellum receives input exclusively from the cerebral cortex via the pontine nuclei. (T/F?)
  5. Two of the deep cerebellar nuclei, the dentate and the emboliform are fused and form a single, interposed nucleus. (T/F?)
  6. All output fibers from the cerebellum originate from the deep cerebellar nuclei. (T/F?)

  1. T
  2. F
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  1. The cerebellum contains more neurons than the total from the rest of the brain, first of all because of the large number of the granule cells.
  2. There are three cerebellar peduncles that connect cerebellum with the rest of the brain, the superior cerebellar peduncle, the middle cerebellar peduncle and the inferior cerebellar peduncle.
  1. The globose and the emboliform nucleus form interposed nucleus.
  2. Most of the output fibers from the cerebellum originate from the deep cerebellar nuclei. The exception is the flocculonodular lobe, its output goes to the vestibular nuclei.