Brain Organization

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Dr. DeBello, Fall 2024, Lecture 10

Physiology

UCDavis

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6 Terms

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General organization of the Nervous System

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Afferent

  • Ascending towards the brain

  • Afferent sensory input goes through the dorsal root ganglion

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Efferent

  • Descending away from the brain

  • Efferent motor output goes through the ventral root

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The brain and spinal cord are….

  • Bilaterally symmetric

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Functional Localization

  • Specific areas of the brain are specialized towards specific functions/ perceptions

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Topographic Map

  • Orderly mapping of body parts

  • Overrepresentation of body parts with high acuity (hands and face)