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The Rexed laminae comprise a system of ten layers of grey matter (I-X), identified in the early 1950s by Bror Rexed to label portions of the spinal cord. ^[1][2]

Similar to Brodmann areas, they are defined by their cellular structure rather than by their location, but the location still remains reasonably consistent.

LaminaeEdit

• I-VI: Posterior/dorsal horn
  • Lamina I: posteromarginal nucleus
  • Laminae II/III: substantia gelatinosa
  • Laminae III/IV/V: nucleus proprius
  • Lamina VI: nucleus dorsalis
• VII-IX: Anterior/ventral horn
  • Lamina VII: intermediolateral nucleus
  • Lamina VIII: motor interneurons
  • Lamina IX: motor neurons which also contain the nucleus of onuf in the sacral region
• Lamina X: neurons bordering Central canal

ReferencesEdit

1. ↑ Rexed B (1952). The cytoarchitectonic organization of the spinal cord in the cat.. J Comp Neurol 96 (3): 414-95.
2. ↑ Rexed B (1954). A cytoarchitectonic atlas of the spinal cord in the cat.. J Comp Neurol 100 (2): 297-379.

External linksEdit

• Overview at University of the West Indies
• Overview at University of Medicine and Dentistry of New Jersey