Abbreviation

CTXpm

Species

Rat

Description of part

The structures listed here develop dorsal to the cerebral nuclei, and apparently deep to the cortical plate (although this remains controversial). Their projection neurons appear to use excitatory amino acids rather than GABA (which is used by most cortical nuclear projection neurons). Many suggestions in the older and more recent literature indicate that the deep amygdalar nuclei listed here are related to the claustrum, and the endopiriform nucleus was often included in the claustrum in the older literature. Fiber tracts perhaps analogous to the extreme capsule lie superficial to layer 6b (Vandevelde et al. 1996) and the endopiriform nucleus. The embryological origin of isocortical layer 6b in the rat is unclear (subplate or deep cortical plate; see next note). For convenience, traditional cortex refers to layers 1-6a, although layer 1 (which contains scattered neurons) is derived embryologically from the preplate, which is quickly divided into layer 1 and the subplate by the cortical plate (see Alvarez-Bolado and Swanson 1996).

Part type

gray matter

Nomenclature

Swanson-2004

Endorsement

The approach used by the collator Mihail Bota is not endorsed by the author of the nomenclature.

Reference