Abbreviation

BSTL

Species

Rat

Description of part

The lateral subdivision of BST, located at the level of the anterior commissure (Fig. 1) consists of a fairly homogeneous population of spiny neurons (Fig. 2, cell B). These ceils have ovoid perikarya that average 17x 14 micrometers in diameter, and 4-5 primary dendrites that radiate in all dircctionr Dendrites branch several times and extend 150-200 micrometers from the cell body. Perikarya and primary dendrites exhibit few spines but secondary and more distal dendrites have a dense covering of spines (Fig. 2, cell B). Most spines consist of a short stalk capped by a small terminal swelling. Axons usually originate from the cell body and may exhibit spines on their axon hillock and initial segment. Axons, which can only be followed for 50-100 micrometers until they pass out of the section or abruptly cease to impregnate, often give off one or more thin, beaded collaterals that appear to be confined to the vicinity of the cell. No preferred axonal trajectory was observed. A few smaller spine sparse neurons were observed in the dorsal portion of the lateral subdivision and dorsomedial to this subdivision (Fig. 2, cell A). Axons of these neurons usually branch several times in the vicinity of the cell.

Part type

gray matter

Nomenclature

McDonald

Endorsement

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

Reference