The corticopontine fibers arise from extensive regions of the
cortex and descend uncrossed to end upon the pontine nuclei.
Cells within the pontine grey then project via the MIDDLE CEREBELLAR
PEDUNCLE (or brachium pontis) to the CONTRALATERAL
cerebellum via pontocerebellar fibers. This cortico-ponto-cerebellar
pathway is quantitatively the most important route by which the
cerebral cortex can influence the cerebellar cortex. The corticopontine
projection carries information that the contralateral cerebellum
(via a synapse in the pontine grey) uses to participate in the
preparation to move and in the initiation and execution of movements.
More later!