PSYCH261 Lecture Notes - Lecture 58: Deep Cerebellar Nuclei, Fastigial Nucleus, Vestibulospinal Tract
29 Apr 2019
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Document Summary
Contains 50 billion neurons that project into all regions of the brain. When damaged, people"s movements become jerky, erratic, and uncoordinated. Flocculonodular lobe: a region of the cerebellum; involved in control of postural reflexes: damage causes disturbances to posture and balance. Vermis: the portion of the cerebellum located at the midline; receives somatosensory information that helps to control the vestibulospinal and reticulospinal tracts through its connections with the fastigial nucleus. Fastigial nucleus: a deep cerebellar nucleus involved in the control of movement by the reticulospinal and vestibulospinal tracts. Interposed nuclei: a set of deep cerebellar nuclei; involved in the control of the rubrospinal system. Pontine nucleus: a large nucleus in the pons that serves as an important source of input to the cerebellum. Dentate nucleus: a deep cerebellar nucleus; involved in the control of rapid, skilled movements by the corticospinal and rubrospinal systems. The major outflow of the cerebellum is inhibitory.
