week_9_motor3 - How Do We Move Our Body? I Week 9, Lecture...

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HD 220 Fall 2006 1 Temple, 2006 1 How Do We Move Our Body? – I Week 9, Lecture 1 Temple, 2006 2 Outline for today • Movement and movement structures – Motor Cortices – Spinal cord and Motor neurons • Clinical disorders: para and quadra plegia – Basal ganglia • Clinical disorders: Parkinson’s, Huntington’s, Tourettes – Cerebellum • Clinical disorders: ataxia, autism Temple, 2006 3 Movement
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HD 220 Fall 2006 2 Temple, 2006 4 Motor Structures • Frontal cortex • (Brainstem) • Spinal cord • Motor neurons • Muscles • Basal ganglia • Cerebellum Temple, 2006 5 Temple, 2006 6 Motor Cortex Maps • Primary motor cortex – “map” of body • Homunculus – proportional to amount of movement
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HD 220 Fall 2006 3 Temple, 2006 7 Homunculus of Different Species Temple, 2006 8 Temple, 2006 9 Premotor Cortex
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HD 220 Fall 2006 4 Temple, 2006 10 Increasingly Complex Movement Temple, 2006 11 Motor Structures • Frontal cortex – Primary, pre-motor, and supplementary cortices • Parts of cortex that plan and control movement • (Brainstem) • Spinal cord • Motor neurons • Muscles • Basal ganglia • Cerebellum Temple, 2006 12 Brainstem Stimulation
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HD 220 Fall 2006 5 Temple, 2006 13 Motor Structures • Frontal cortex – Primary, pre-motor, and supplementary cortices • Parts of cortex that plan and control movement • (Brainstem) • Spinal cord • Motor neurons • Muscles • Basal ganglia • Cerebellum Temple, 2006 14 Spinal Cord • Spinal Cord – Pathways for motor information – Parallel pathways • Different muscles • Different types of movement – Main pathway • Corticospinal tract – Cortex to spinal cord Temple, 2006 15 Movement and the Spinal Cord • Spinal cord – Final common pathway • Spinal cord reflexes
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week_9_motor3 - How Do We Move Our Body? I Week 9, Lecture...

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