Nucleus proprius of spinal cord

Nucleus proprius of spinal cord
Medulla spinalis - Substantia grisea
Details
Identifiers
Latin	nucleus proprius medullae spinalis; laminae spinales III et IV
NeuroNames	1633
TA98	A14.1.02.121
TA2	6068
FMA	73906
Anatomical terminology [edit on Wikidata]

The nucleus proprius is a layer of the spinal cord adjacent to the substantia gelatinosa. The 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 and IV make up the nucleus proprius.^[1]

The nucleus proprius (NP), along with the substantia gelatinosa of Rolando are involved in sensing pain and temperature.^[2]

See also

• Rexed laminae

References

External links

• "Nucleus proprius" at Dorland's Medical Dictionary
• Diagram at pixelatedbrain.com
• 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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