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Dorsal-Column vs Anterior-Lateral Pathways: Understanding Sensory and Motor Signals

This overview examines the differences between the dorsal-column and anterior-lateral pathways in the nervous system. It focuses on sensory signals, contrasting touch and proprioception via the dorsal column with pain and temperature sensations through the anterior-lateral pathway. Additionally, it explores motor pathways, distinguishing between the dorsolateral and ventromedial tracts, highlighting their distinct roles in motor function. The dorsolateral tract is emphasized for its specificity and cortical origins, while the ventromedial pathway is noted for its diffuse nature and brainstem origins.

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Dorsal-Column vs Anterior-Lateral Pathways: Understanding Sensory and Motor Signals

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Presentation Transcript

  1. Movement Feedback signals

  2. Sensory: Dorsal-column vs anterior-lateral DC - touch & proprio., - AL - pain & temp DC - cross late - AL - cross early & ascend Motor: Dorsolateral vs ventromedial DL - more specific - VM - more diffuse (bilateral) DL - Distal - VM - proximal DL - cortical origin - VM - more brainstem origin

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