Gray commissure

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Brain: Gray commissure
Medulla spinalis - Substantia grisea
NeuroNames	ancil-953

The gray commissure is a thin strip of gray matter that surrounds the central canal of the spinal cord and, along with the anterior white commissure, connects the two halves of the cord. It comprises lamina X in the Rexed classification.

[edit] External links

• Blok BF, van Maarseveen JT, Holstege G (June 1998). "Electrical stimulation of the sacral dorsal gray commissure evokes relaxation of the external urethral sphincter in the cat". Neurosci. Lett. 249 (1): 68–70. PMID 9672391. 

v • d • e 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) Layers Epidural space • Dura mater • Subdural space • Arachnoid mater • Subarachnoid space • Pia mater Other structures Denticulate ligaments • Conus medullaris • Cauda equina • Filum terminale • Cervical enlargement • Lumbar enlargement Anterior median fissure • Posterior median sulcus Anterior white commissure