Overview Introduction Function to smoothly coordinate movement to play a role in motor planning and balance Anatomy the cerebellum is derived from the metencephalon and is found dorsally to the pons and rostral medulla which are attached by cerebellar peduncles login to view 2 more bullets the cerebellum contains the vermis and flocculonodular lobes which play an important role in login to view 2 more bullets cerebellar hemisphere can be divided into login to view 4 more bullets cerebellar peduncles login to view 4 more bullets deep cerebellar nuclei can be arranged from lateral → medial as Dendate nuclei Eboliform Globos Fastigial mnemonic: "Dont Eat Greasy Food" Circuitry input brain (via the pontocerebellar and climbing fiber) to the cerebellum via the login to view 1 more bullet spinal cord (via the spinocerebellar and climbing fibers) to the cerebellum via the login to view 1 more bullet vestibular system to the cerebellum via login to view 1 more bullet output all cerebellar outputs are carried by Purkinje cells which synapse in the login to view 11 more bullets Clinical correlate cerebellar disorders typically results in nausea, vomiting, and vertigo slurred speech uncoordinated limb movements login to view 2 more bullets unsteadiness lesion localization lesions to the vermis results in login to view 1 more bullet lesions to the flocculonodular lobe results in login to view 1 more bullet lesions to the cerebellar hemispheres results in login to view 1 more bullet Physical exam physical exam maneuvers to test the cerebellum include finger-to-nose and heel-to-shin test finger tapping rapid alternating movement gait testing login to view 2 more bullets testing for ocular dysmetria and nyastagmus