Abbreviation

BSTPS

Species

Rat

Description of part

The parastrial (PS) nucleus is a lens-shaped nucleus located beneath the anterior commissure between the BST and the cell-poor strial part of the preoptic area (Figs. 1B-D, 2A; Raisman and Field, 1973; Simerly et al., 1984). Neurons in PS are small, darkly staining, ovoid to fusiform, tightly packed, and are oriented diagonally from the anterior commissure to VL (Fig. 4G). The PS has been considered separate from the BST due to its lack of amygdalar input (Raisman and Field, 1973; Simerly et al., 1984). However, PS neurons are cytoarchitecturally similar to those in VL (compare Fig. 4G and 4H). Both VL and PS contain similar neuropeptideimmunoreactive cells and fibers (Standaert et al., 1986; Rao et al., 1987; unpublished observations). In addition, the ventral BST cell groups (i.e., VL, PS, and the preoptic BST) are extensively connected with the hypothalamus (Simerly and Swanson, 1988; unpublished observations). These findings suggest that PS is related to the other ventral BST subnuclei and have led us to include the PS in this description.

Part type

gray matter

Nomenclature

Moga-Fulwiler-Saper

Endorsement

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

Reference