Grey column
The grey column refers to a somewhat ridge-shaped mass of grey matter in the spinal cord. This presents as three columns: the anterior grey column, the posterior grey column, and the lateral grey column, all of which are visible in cross-section of the spinal cord.
| Grey column of spinal cord | |
|---|---|
Cross section of the spinal cord. The three grey columns make up the butterfly-shaped shaded region | |
| Details | |
| Identifiers | |
| Latin | columnae griseae |
| TA98 | A14.1.02.101 |
| TA2 | 6063 |
| FMA | 77867 |
| Anatomical terminology | |
The anterior grey column is made up of alpha motor neurons, gamma motor neurons, and small neurons thought to be interneurons. The posterior grey column is divided into several of the Rexed laminae. The lateral grey column is only present in the thoracic region and upper lumbar segments (T1-L2). The lateral grey column contains preganglionic cell bodies of the autonomic nervous system and sensory relay neurons.
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