• 4 CNs in:
  • Medulla
  • Pons
  • Above Pons (midbrain)
• 4 CNs divide into 12 are in the midline
  • III, IV, VI, XII
• 4 CNs do not divide/12 are in the lateral
  • V, VII, IX, XI
• 4 midline columns → motor
  • Motor nucleus
  • Motor pathway
  • MLF
  • Medial Lemniscus
• 4 lateral (side) columns → sensory
  • Sympathetic
  • Spinothalamic
  • Sensory
  • Spinocerebellar