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Speech Production

lecture on speech production

Speech production is a _______ task. Speech production is a motor task.
5 levels of the nervous system involved in speech production are: Cerebral cortex subcortical nuclei brainstem spinal cord and ___________ cerebellum
3 separate motor subsystems of speech production are pyramidal extrapyramidal cerebellar
Pyramidal system controls voluntary movement of muscles, contains 3 tracts
3 tracts of the pyramidal system cortico spinal cortico bulbar cortic pontine
Corticospinal system controls skilled movements in limbs
Corticobulbar cranial nerves directly innervate muscles of speech
Corticopontine goes to the pons, cerebellum, then cortex via thalmus
All three pyramidal system tracts contain upper motor neurons from the cortex
EXTRApyramidal system connects subcortical motor nuclei, basal ganglia
Motor disturbances of the extrapyramidal system are involuntary movement disorders or dyskinesias
Akinesia is no movement
bradykinesia is slow movement
Created by: JSchwadron