Point 18 Intro Pathway Deficit Summary Overview Problems Contents Anatomy

You know that lesions of the cerebellar hemisphere result in IPSILATERAL motor incoordination. For instance, a lesion in the RIGHT cerebellar hemisphere will result in motor incoordination of the RIGHT arm and leg. A lesion of the RIGHT superior cerebellar peduncle CAUDAL TO (before) the decussation will also result in motor incoordination on the RIGHT side. In contrast, a lesion ROSTRAL to the decussation of the superior cerebellar peduncle will result in CONTRALATERAL motor deficits. PLEASE UNDERSTAND THIS!