Outputs of cerebellum

Question 1

cerebrocerebellum pathway

Answer 1

1: lateral hemisphere –> dentate nu. –> 2: contralateral VL via SCP –> PriMC, PreMC, SMA, and parietal –> corticospinal

AND

1: lateral hemi –> dentate nu. –> 2: parvocellular red nucleus via SCP –> 3: inferior olivary nucleus via central tegmental tract –> 2: cerebellum via olivocerebellar fibers

Question 2

cerebrocerebellum does what

Answer 2

motor planning/learning

Question 3

spinocerebellum (vermis) pathway

Answer 3

(vermis) –> 1: fastigal nu. –> 2: contralateral VL via SCP –> 3: PriMC, PreMC, SMA, parietal –> anterior corticospinal

AND

(vermis) –> 1: fastigal nu. –> 2: ipsi reticular formation and vestibular nuclei via ICP –> reticulospinal and vestibulospinal tract

Question 4

spinocerebellum (vermis) does what

Answer 4

posture, proximal limb movement

Question 5

spinocerebellum (intermediate zone) pathway

Answer 5

(intermediate zone) –> 1: interposed nu. –> 2: contralateral VL via SCP –> 3: PriMC, PreMC, SMA, parietal, crosses back over at pyramidal decussation –> lateral corticospinal

AND

intermediate zone) –> 1: interposed nu. –> 2: magnocellular red nucleus via SCP –> 3: rubrospinal tract via ventral tegmental decussation

Question 6

spinocerebellum (intermediate zone) does what

Answer 6

appendicular limb movement and somatosensory

Question 7

vestibulocerebellum pathway

Answer 7

(inferior vermis + flocculonodular lobe) –> 1: vestibular nuclei –> medial longitudinal fasciculus

Question 8

vestibulocerebellum does what

Answer 8

posture, equilibrium, balance