Cerebellum

Describe the corticopontocerebellar projection.

Cortex sends information to the pontine nuclei (pons), sends information to the cerebellum, sends information to the ventral lateral nucleus of the thalamus, sends information to Area 4 of the cortex.

List the cells of the cerebellum.

Granular, purkinje, basket, stellate, Golgi cells.

Draw out the cellular circuit consisting of the following cells: Golgi cells, stellate cels, granule cells and parallel fibers, pons and mossy fibers, inferior olive and climbing fibers, basket cells, purkinje cells, deep cerebellar nuclei, thalamus, cortex (M1)

N/A

Describe the information that comes to the cerebellum.

The function of the cerebellum is to make sure that the movement we intend to make is equal to the movement actually made.

The movement intended is called the efferent copy. It’s a copy of the command that was sent to the alpha motor neuron. The signal of the actual movement is sent from 1a neurons, 1b neurons, and the skin. All info (intended and actual) comes through mossy fibers. Mossy fibers send information to granular cells of the cerebellum (parallel fibers). Parallel fibers connect to the purkinje cells.