Anatomy & Physiology › Section M · Somatic and autonomic nervous systems › Topic M.2

Central processing

A receptor firing is only the start: the signal must climb a chain of neurons, cross the midline, pass the thalamus and reach the right patch of cortex before you feel or see anything. Knowing those routes lets you predict exactly what a given injury will take away.

In this topic

  • Three neurons to the cortex
  • The dorsal column pathway
  • The spinothalamic pathway
  • Worked example: half of the cord
  • The face, taste and the trigeminal system
  • Hearing and balance pathways
  • The visual pathway
  • Worked example: visual field losses
  • Maps in the cortex
  • Two streams of vision
  • Common mistakes to avoid
  • Key takeaways

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