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Cerebellar Aff/Effer

USCSOM: Tracts of the cerebellar afferent and efferent fibers

TractOriginPeduncleTerminationFiber types
ventral external arcuate arcuate nucleus ICP posterior lobe hemisphere corticospinal collaterals
reticulocerebellar reticular gray matter ICP contralateral anterior lobe of vermis cutaneous stimuli via spinothalamics
olivocerebellar inferior olivarry nucleus ICP contralateral vermis and lateral hemisphere (climbing fibers) reticular gray, basal ganglia, cerebral cortex
vestibulocerebellar vestibular nuclei ICP flocculonodular lobe (ips) vestibular input
pontocerebellar pontine nuclei MCP vermis posterior lobe contralateral input from muscle/tendon/joint and vestibular/visual/auditory
ventral spinocerebellar nucleus proprius SCP vermis anterior ipsilateral proprioceptive and tactile
tectocerebellar Sup and Inf colliculi SCP vermis ant and post visual and auditory impulses
fastigial fastigial nucleus ICP vestibular nucleus, cervical ventral horn coordinate neck mm with eye movements
interposed interposed nuclei SCP medulla nuclei speech - tonus, coordination, stabilization
dentate dentate nucleus SCP red nucleus, tegmentum, dorsal thalamus sensorimotor modulation
Dorsal spinal cerebellar nucleus thoracis ICP vermis proprioceptive/tactile for sacral/lumbar/thoracic
dorsal external arcuate lateral cuneate nucleus ICP vermis (ant/post lobe) proprioceptive/tactile for neck and upper limb
Created by: jlellerm