Posterior median sulcus of spinal cord

Posterior median sulcus of spinal cord
Transverse section of the medulla spinalis in the mid-thoracic region.

Details
Identifiers
Latin	sulcus medianus posterior medullae spinalis
Dorlands /Elsevier	s_28/12769176
TA	A14.1.02.008
FMA	83798
*Anatomical terminology* [edit on Wikidata]

The posterior median sulcus is the posterior end of the posterior median septum of neuroglia of the spinal cord. The septum varies in depth from 4 to 6 mm, but diminishes considerably in the lower part of the spinal cord.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

Atlas image: n3a2p3 at the University of Michigan Health System

The spinal cord

General features

Grey matter

Posterior grey column	Marginal nucleus Substantia gelatinosa of Rolando Nucleus proprius Spinal lamina V Spinal lamina VI

Lateral grey column	Intermediolateral nucleus Posterior thoracic nucleus

Anterior grey column	Interneuron Alpha motor neuron Onuf's nucleus

Other	Rexed laminae Central gelatinous substance Gray commissure Central canal Terminal ventricle

White matter

Sensory

Posterior	Posterior column-medial lemniscus pathway: Gracile Cuneate

Lateral:	Spinocerebellar dorsal ventral Spinothalamic lateral anterior Posterolateral Spinotectal

Spinoreticular tract Spino-olivary tract

Motor

Lateral	Corticospinal Lateral Extrapyramidal Rubrospinal Olivospinal Raphespinal

Anterior	Corticospinal Anterior Extrapyramidal Vestibulospinal Reticulospinal Tectospinal

Both

Anterior white commissure

External features

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

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