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Thalamus

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Topic updated on 10/12/16 3:55pm

Overview
  • Function
    • relay for ascending sensory information
      • olfaction is only sense that does not pass through the thalamus
    • output (with modification) to the sensory cortex
    • relay of motor input from the cortex to the body
  • Functional anatomy
    • lateral geniculate nucleus (LGN)
      • receives visual input
      • lateral = light
    • medial geniculate nucleus (MGN)
      • receives auditory input
      • medial = music
    • ventral posterior nucleus
      • lateral part (VPL)
        • receives all bodily sensation
      • medial part (VPM)
        • receives all facial sensation
    • ventral anterior/lateral nuclei
      • motor
  • Blood supply
    • anterior choroidal arteries from the internal carotid artery
    • posterior communicating
    • posterior cerebral     


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