Bed Nucleus Of The Stria Terminalis
abbreviation: BST
Abbreviation
BST
Species
Rat
Description of part
At the rostral end of the extended amygdala, the bed nucleus of the stria terminalis forms part of the floor of the lateral ventricle and is bounded dorsomedially by the ventral aspect of the lateral septal nucleus and laterally by the internal capsule, which separates it from the caudate putamen and globus pallidus (Figs. 15B-15D). Caudally, it is successively bounded by the stria terminalis, the stria medullaris, and in part the columns of the fornix. Rostrally, it merges with the caudomedial portions of the nucleus accumbens, whereas, ventromedially, it merges with the preoptic area. Ventrolaterally and caudolaterally, it merges with the sublenticular territories that stretch out laterally immediately below the globus pallidus (Figs. 15D-15F). Generally, the rostral border of the bed nucleus may be viewed as indistinct with the nucleus accumbens. It sometimes has been convenient to identify this border by the use of histochemistry for acetylcholinesterase, because acetylcholinesterase stains densely within the accumbens and generally more sparsely within the bed nucleus. However, almost every other histochemical stain or receptor that densely marks the bed nucleus also densely labels portions of the caudomedial accumbens (e.g., Fig. 9A), and to some extent neurons that project to areas typical of the extended amygdala are found in these zones (e.g., Fig. 13) (Nauta et at., 1978; Grove, 1988a, 1988b).
Part type
gray matter
Nomenclature
de Olmos - 1995
Endorsement
The approach used by the collator Mihail Bota is not endorsed by the author of the nomenclature.
