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64
what are the main afferent projections to the cerebellum?
where to they termintate?
are they excitory or inhibitory?
what are mossy and climbing fibres?
where to they termintate?
are they excitory or inhibitory?
what are mossy and climbing fibres?
1. spinocerebellar fibres (from the spinal
cord)
2.olivocerebellar fibres (from the inferior olivary nucleus of the medulla oblongata),
3. vestibulocerebellar fibres (from the vestibular nuclei), and 4.pontocerebellar fibres (from the
pons). T
they mostly terminate in the cerebellar cortex where they are excitatory to cortical neurons.
Afferent fibres enter through one of the cerebellar peduncles and proceed to the cortex as either mossy fibres or climbing fibres, depending on their origin (only the olivocerebellar fibres end as climbing fibres). Each mossy fibre branches to supply several folia,
ending in the granular layer in synaptic contact with granule cells.
cord)
2.olivocerebellar fibres (from the inferior olivary nucleus of the medulla oblongata),
3. vestibulocerebellar fibres (from the vestibular nuclei), and 4.pontocerebellar fibres (from the
pons). T
they mostly terminate in the cerebellar cortex where they are excitatory to cortical neurons.
Afferent fibres enter through one of the cerebellar peduncles and proceed to the cortex as either mossy fibres or climbing fibres, depending on their origin (only the olivocerebellar fibres end as climbing fibres). Each mossy fibre branches to supply several folia,
ending in the granular layer in synaptic contact with granule cells.
