Gray commissure

From Wikipedia, the free encyclopedia

Brain: Gray commissure
Medulla spinalis - Substantia grisea
Spinal cord. (Gray commissure is #3, near center.)
Latin	commissura grisea anaterior medullae spinalis, commissura grisea posterior medullae spinalis
Gray's	p.754
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.

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. doi:10.1016/S0304-3940(98)00382-6. PMID 9672391.

Anatomy of torso (primarily): the spinal cord (TA 14.1.02, GA 9.749)

External, dorsal

Posterior median sulcus · Posterolateral sulcus

Grey matter/
Rexed laminae

I–VI: Posterior horn	I: Marginal nucleus · II: Substantia gelatinosa of Rolando · III+IV: Nucleus proprius · Spinal lamina V · Spinal lamina VI

VII: Lateral horn	Intermediolateral nucleus · Posterior thoracic nucleus

VIII–IX: Anterior horn	Interneuron · Alpha motor neuron (Onuf's nucleus)

X: Other	Central gelatinous substance · Gray commissure Central canal · Terminal ventricle

White matter

somatic/ ascending (blue)	Posterior/PCML: touch: Gracile · Cuneate Lateral: proprioception: Spinocerebellar (Dorsal, Ventral) · pain/temp: Spinothalamic (Lateral, Anterior) · Posterolateral (Lissauer) · Spinotectal Spinoreticular tract · Spino-olivary tract

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

both	Anterior white commissure

External, ventral

Anterior median fissure · Anterolateral sulcus

External, general

Cervical enlargement · Lumbar enlargement · Conus medullaris · Filum terminale · Cauda equina

M: CNS

anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug (N1A/2AB/C/3/4/7A/B/C/D)

This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.