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posterior grey column
The posterior grey column (posterior cornu, dorsal horn, spinal dorsal horn posterior horn) of the spinal cord is one of the three grey columns of the spinal cord. It receives several types of sensory information from the body, including fine 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 column is subdivided into laminae I-VI
*Marginal nucleus of spinal cord (lamina I)
*Substantia gelatinosa of Rolando (lamina II)
*Nucleus proprius (laminae III,IV)
*Spinal lamina V, the neck of the posterior horn
*Spinal lamina VI, the base of the posterior horn.
The other laminae are located in other regions of grey matter in the spinal cord.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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