click below
click below
Normal Size Small Size show me how
Speech Production
lecture on speech production
Question | Answer |
---|---|
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 |