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Nucleus proprius of spinal cord

Nucleus proprius of spinal cord
File:Medulla spinalis - Substantia grisea - English.svg
Medulla spinalis - Substantia grisea
Latin nucleus proprius medullae spinalis; laminae spinales III et IV
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Anatomical terminology

The Nucleus proprius is a layer of the spinal cord adjacent to the substantia gelatinosa. Nucleus proprius can be found in the gray matter in all levels of the spinal cord. It constitutes the first synapse of the spinothalamic tract carrying pain and temperature sensations from peripheral nerves. Cells in this nucleus project to deeper laminae of the spinal cord, to the posterior column nuclei, and to other supraspinal relay centers including the midbrain, thalamus, and hypothalamus. Rexed laminae III, IV, and V make up the nucleus proprius.[1] Nucleus proprius (NP), along with nucleus dorsalis (ND) are involved in sensing pain and temperature.

See also



External links

  • Diagram at
  • Sławomirski J, Głuszak J (1986). "Structure and topography of the nucleus proprius cornus dorsalis of the spinal cord of horses". Pol Arch Weter 25 (4): 131–6. PMID 3620378. 

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