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[edit]

* Rexed laminae

## References[edit]

1. ^ cancerweb.ncl.ac.uk
2. ^ Westlund, Karin N.; Willis, William D. (2015). "Pain System". The Rat Nervous System. pp. 703–731. doi:10.1016/B978-0-12-374245-2.00025-5. ISBN 9780123742452.

## External links[edit]

* "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.

* v
* t
* e

Spinal cord

General features|

* Cervical enlargement
* Lumbar enlargement
* Conus medullaris
* Filum terminale
* Cauda equina
* Meninges
* Central canal
* Terminal ventricle

Grey columns|

| Posterior grey column|

* Marginal nucleus
* Substantia gelatinosa of Rolando
* Nucleus proprius
* Rexed lamina V
* Rexed lamina VI

|

Lateral grey column|

* Intermediolateral nucleus
* Posterior thoracic nucleus

Anterior grey column|

* Interneuron
* Alpha motor neuron
* Onuf's nucleus
* Gamma motor neuron

Other|

* Rexed laminae
* Central gelatinous substance
* Gray commissure

White matter|

| Sensory|

| Posterior|

* Posterior column-medial lemniscus pathway
* Gracile
* Cuneate

|

Lateral|

* Spinocerebellar
* dorsal
* ventral
* Spinothalamic
* lateral
* anterior
* Posterolateral
* Spinotectal

Anterior|

* Spinoreticular tract
* Spino-olivary tract

Motor|

| Lateral|

* Corticospinal
* Lateral
* Extrapyramidal
* Rubrospinal
* Raphespinal
* Reticulospinal
* Hypothalamospinal

|

Anterior|

* Corticospinal
* Anterior
* Extrapyramidal
* Vestibulospinal
* Reticulospinal
* Tectospinal
* Raphespinal
* Olivospinal

Both|

* Anterior white commissure

External features|

* Ventral
* Anterior median fissure
* Anterolateral sulcus
* Dorsal
* Posterior median sulcus
* Posterolateral sulcus

Authority control databases |

* Terminologia Anatomica

|

This neuroanatomy article is a stub. You can help Wikipedia by expanding it.

|

* v
* t
* e

*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template