PIXBRAIN HOME _ _ MOD 6 HOME _ _ previous _ _ FIGURE 6-9_ _ next _ _ I WANT TO

_____The next step in this sequence is that the motor cortex, guided in part by information that has been refined by processing in the lateral part of the cerebellar hemisphere, sends motor commands to the spinal cord (and motor nuclei in the brainstem). As shown here, the descending axons of this pathway give off collaterals as they pass through the basilar pons and these fibers synapse on neurons which in turn project through the middle cerebellar peduncle to terminate in the vermis and intermediate region of the cerebellar hemisphere (on the side contralateral to the one where the motor commands originated). Thus, these regions of the cerebellar cortex receive a "copy" of the motor commands being sent to the spinal cord and motor nuclei of the brainstem.