Abbreviation

SI

Species

Rat

Description of part

Jones et al. 1976. This region has been renamed the ventral pallidum (see Alheid and Heimer 1988), and contains a characteristic subpopulation of scattered, cortically projecting neurons (Rye et al. 1984) that in some animals (especially primates) form distinct cell clusters within the substantia innominata, known as the basal nuclei of Meynert (see Gory 1963). These cholinergic cells extend into the medial septal complex, magnocellular preoptic nucleus, and perhaps lateral preoptic area. The term magnocellular basal "nucleus" has been introduced to refer to the basal cholinergic neurons that project to the cerebral cortex (Saper 1984).

Part type

gray matter

Nomenclature

Swanson-1992

Endorsement

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

Collator argument

The hierarchy was constructed and adapted according to the information found in the Rat Brain Atlas, Swanson 1992. We have considered three types of brain structures: grisea (neural masses), fiber tracts, and ventricles. The hierarchical tree was constructed by taking into account two criteria: the set of classes and subclasses of the basic cell groups and fiber systems of the rat CNS and the topological positions of structures relative to superstructures.

Reference

Substantia innominata - Rat - Swanson-1998
Substantia innominata - Rat - Swanson-2004
Substantia innominata - Mouse - Dong-2007
Substantia innominata - Rat - Krettek & Price