Rexed laminae are ten layers (I-X) into which the grey matter of the spinal cord is divided based on the appearance of its nerve cells. Laminae I-VI form the dorsal horn, VII the intermediate zone, VIII-IX the ventral horn and X surrounds the central canal.
| Location | Grey matter throughout the spinal cord |
|---|---|
| Parts |
|
| Connections |
|
| Blood Supply | Posterior spinal arteries; Anterior spinal artery |
Organise sensory processing, interneuron networks and motor output in a layered map.
The scheme helps describe where pain fibres end (laminae I, II and V) and where motor neurons lie (lamina IX), useful in understanding spinal cord injury and pain treatments.
Damage to grey matter laminae causing segmental loss of sensation and motor function.
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