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21 Cards in this Set

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  • Back
Cerebellar Function
compare intended and actual movements. Contralateral hemisphere/red nucleus, ipsilateral spinal cord, vestibular nucleus, motor function
Deep Cerebellar Nuclei
Fastigial Nuclei, Interposed nuclei, Dentate Nuclei
Fastigial Nuclei
anti-gravity
Interposed Nuclei
Modulate stretch reflexes
Dentate Nuclei
planning, initiation, control of intentional movements
Superior Cerebellar Peduncle
midbrain/
Middle cerebellar peduncle
pons
Inferior Cerebellar Peduncle
medulla
Cerebellar Blood Supply
superior cerebellar, anterior/posterior inferior cerebellar
Basket Cells
Purkinge Cells
provide inhibitory stimulus to deep cerebellar nucleus
Olivary Nucleus
activated by mismatch between intended and actual movements
Inputs
mossy fibers→granule cells→ parallel fibers
Receptors
purkinje cells
Output
deep cerebellar nuclei
Regulator
inferior olivary nucleus
Vestibulocerebellum
equilibrium and eye movements. Vestibular. Dysfunction → atazia, disequilibrium, nystagums
Vermis
control axial muscles and gait
Paravermis
control of proximal limb movement. Dysfunciton → limb/gait ataxia
Cereberocerebellum
initiation, planning and timing of motor acts. Dysfunction: limb atazia, Dysdiadochokinesia (cannot perform rapid alternating movements), intention tremor
Mollarent’s Traingle
myoclonic tremor of soft palate. Red nucleus, inferior olivary nucleus, dentate nucleus.