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