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Rexed lamina VII

Name: Rexed lamina VII
Description: Lamina corresponding to the intermediate zone of the spinal cord and to parts of the ventral horn not occupied by lamina VIII and IX (Paxinos, The rat nervous system, 2nd ed, page 44. Lies adjacent to lamina VI, when VI is present; otherwise borders V.
Super-category: Rexed spinal cord parcellation scheme region
*Id: nlx_143981
Defining criteria: cyto-architecture
Link to OWL / RDF: Download this content as OWL/RDF
Defining Criteria: cyto-architecture
Cyto-architecture defining Criteria: Lamina VII has a lighter and more homogeneous appearance in Nissl stained sections compared to the adjacent lamina (Paxinos, The rat nervous system, 2nd ed, pg 44).

From Rexed:

"The medial boundary towards the region around the central canal is difficult to fix. In the sections its nerve cells are evenly distributed and rather uniform in size and general appearance. Ventrally the boundary of the 7th layer varies in different regions of the cord. In the intumescences the strong development of the lateral motor nuclei, forming layer IX, seems to have made these nuclei move more laterally and dorsally, and regions of nerve cells exactly like those of layer VII are seen to penetrate medial to these nuclei, even down to the ventral contour of the ventral horn."

Brain regions that receive axons from this region: cerebellum
Overlaps : intermediolateral nucleus, Clarke's Nucleus, central cervical nucleus
Parcellation Scheme: Rexed spinal cord parcellation scheme


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Facts about Rexed lamina VIIRDF feed
CurationStatusuncurated  +
CytoDefiningCriteriaLamina VII has a lighter and more homogene Lamina VII has a lighter and more homogeneous appearance in Nissl stained sections compared to the adjacent lamina (Paxinos, The rat nervous system, 2nd ed, pg 44).

From Rexed:

"The medial boundary towards the region around the central canal is difficult to fix. In the sections its nerve cells are evenly distributed and rather uniform in size and general appearance. Ventrally the boundary of the 7th layer varies in different regions of the cord. In the intumescences the strong development of the lateral motor nuclei, forming layer IX, seems

to have made these nuclei move more laterally and dorsally, and regions of nerve cells exactly like those of layer VII are seen to penetrate medial to these nuclei, even down to the ventral contour of the ventral horn."
the ventral contour of the ventral horn."
DefiningCriteriacyto-architecture  +
DefinitionLamina corresponding to the intermediate zone of the spinal cord and to parts of the ventral horn not occupied by lamina VIII and IX (Paxinos, The rat nervous system, 2nd ed, page 44. Lies adjacent to lamina VI, when VI is present; otherwise borders V.
EfferentProjectionsCerebellum  +
Idnlx_143981  +
LabelRexed lamina VII  +
ModifiedDate22 January 2012  +
ParcellationSchemeRexed spinal cord parcellation scheme  +
PartiallyOverlapsWithIntermediolateral nucleus  +, Clarke's Nucleus  +, and Central cervical nucleus  +
SuperCategoryRexed spinal cord parcellation scheme region  +