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Related Flashcards
Cards In This Set
| Front | Back |
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Afferent Pathways
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Going in
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Efferent Pathways
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Coming out
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The motor system includes feedback loop pathways among the
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 Cerebellum, brainstem, thalamus, pons, and basal ganglia |
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What are the parts of the substantia nigra
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Pars compacta
pars reticulata pars = component/part |
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Parts of the globus pallidus
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External and internal (eGP and iGP)
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To look at insula, must remove
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Uncus
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Function of insula
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-important in [balance?], what we value what we engage with (eg how you react to coffee if you like it or not is different)
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Primary motor cortex
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 Connects with cerebellum, basal ganglia, thalamus (motor nuclei), secondary motor cortex Lesions are area specific (paralysis, weakness of limb, body movement) |
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Secondary motor cortex
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Integration of motor skills and learned motor programs
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Supplemental motor areas
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-involved in arousal level, initiation, triggering of responses
-face motor area -motor organizationg and patterning of speech (discrupts production of speech, multiple kinds of defecits (stuttering, speech rate changes, word formation) |
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Prefrontal motor areas, recieves info from ____
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-Where posterior info comes:
-> 2/3 is from posterior tertiary areas |
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Where are motor axons located in the spinal cord?
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 |
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Upper motor neurons
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-INITIATE IN CORTEX, mostly in layer 5
-carry motor system outputs from cortex to lower motor neurons in the brainstem and spinal cord |
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Lower Motor neurons
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Synapse with upper mostor neurons in the brain stem or spinal cord and project to peripheral muscles
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Lateral motor systems control
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Upper and lower limbs
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