Download Descending Spinal Tracts

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Transcript
• Example of the baseball pitcher
– Walking: Ventromedial
pathways
– Ready to pitch
• cortex, ventromedial pathways
– Pitch signs and strategy
• Sensory information engages
parietal and prefrontal cortex and
area 6
– Winds and throws
• Increased basal ganglia
activity (initiation)
• SMA activity Æ M1
activation
• Corticopontocerebellar
pathways Æ
Cerebellum
• Cortical input to
reticular formation Æ
Release of antigravity
muscles
• Lateral pathway Æ
engages motor neurons
Æ action
The Somatosensory Cortex and
Complex Movement
• Injury to secondary area results in apraxia
(not action)
• inability to make voluntary movements
• Can describe but cannot carry them out
17
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