Posterior horn of spinal cord

Posterior horn of spinal cord
Posterior horn of spinal cord
Medulla spinalis - Section - English.svg
Cross section of the spinal cord. The posterior horn is the upper protrusion of grey matter, labeled with "2"
Latin cornu posterius medullae spinalis
Gray's subject #185 753

The posterior horn (posterior cornu, dorsal horn, spinal dorsal horn) of the spinal cord is the dorsal (more towards the back) grey matter of the spinal cord. It receives several types of sensory information from the body, including light touch, proprioception, and vibration. This information is sent from receptors of the skin, bones, and joints through sensory neurons whose cell bodies lie in the dorsal root ganglion.

Anatomy

The posterior grey horn is subdivided into these laminae. Below are several named examples of each lamina.

The other laminae are located in other regions of grey matter in the spinal cord.

Additional images

See also

v · d · eAnatomy 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
VII: Lateral horn
VIII–IX: Anterior horn
X: Other
Central gelatinous substance · Gray commissure
Central canal
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)
both
External, ventral
Anterior median fissure · Anterolateral sulcus
External, general

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)



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Look at other dictionaries:

  • posterior horn of spinal cord — cornu posterius medullae spinalis …   Medical dictionary

  • apex of posterior horn of spinal cord — a. cornus posterioris medullae spinalis …   Medical dictionary

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  • neck of posterior horn of spinal cord — cervix cornus posterioris medullae spinalis …   Medical dictionary

  • gelatinous substance of posterior horn of spinal cord — substantia gelatinosa cornu posterioris medullae spinalis …   Medical dictionary

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  • posterior horn — noun 1. : a dorsal column of gray matter in the spinal cord 2. : the part of a lateral ventricle of the brain that extends inward and backward …   Useful english dictionary

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