part of part of telencephalic nucleus posterior division of bed nuclei of stria terminalis principal nucleus of stria terminalis A component of the nuclei of stria terminalis defined on the basis of topology, connectivity and multiple stains in the rat. It is one of seven components of the posterior nuclei of stria terminalis in the Functional CNS Model - Rat ( Swanson-2004 ). bed nucleus of the stria terminalis principal (encapsulated) nucleus bed nuclei of the stria terminalis principal nucleus bed nuclei of the stria terminalis, posterior division, principal nucleus EMAPA:37726 bed nuclei of the stria terminalis posterior division principal nucleus MBA:578 MA:0000931 UBERON:0011178 principal nucleus neuronames:3221 BAMS:BSTpr