Nucleus proprius

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The Nucleus proprius is a layer of the spinal cord adjacent to the substantia gelatinosa. It receives non-noxious inputs from the periphery. 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 propius^[1] Nucleus proprius (NP), along with nucleus dorsalis (ND) are involved in sensing fine touch and proprioception.

[edit] See also

Rexed laminae

[edit] References

^ cancerweb.ncl.ac.uk

[edit] External links

n_11/12582718 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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Anatomy of torso (primarily): the spinal cord

Spinal nerve

Dorsal (Root, Ganglion, Ramus) • Ventral (Root, Ramus) • Sympathetic trunk • rami communicantes (Gray, White)

Gray matter/Rexed laminae

Posterior horn (Posteromarginal nucleus, Column of Clarke, Substantia gelatinosa of Rolando, Nucleus proprius)

Lateral horn/Anterior horn (Intermediolateral nucleus)

Central canal/Substantia gelatinosa centralis - Gray commissure

White matter

somatic/ascending (blue)	Posterior/PCML: touch: Gracilis • Cuneatus Lateral: proprioception: Spinocerebellar (Dorsal, Ventral) • pain/temp: Spinothalamic (Lateral, Anterior) • Posterolateral (Lissauer) • Spinotectal

motor/descending (red)	Lateral: Corticospinal (Lateral) • Ep (Rubrospinal, Olivospinal) Anterior: Corticospinal (Anterior) • Ep (Vestibulospinal, Reticulospinal, Tectospinal)