Abbreviation

POR

Species

Rat

Description of part

There is general agreement that the medial and the lateral parts of the superior olive are surrounded by a ring of periolivary gray matter, with a superior (e.g., Harrison and Feldman 1970) or dorsomedial (e.g., Morest 1973) periolivary "nucleus" that is particularly obvious. There is, however, little agreement about parcellationg this ring of gray matter (some parts have been referred to as components of the nuceus of the trapezoid body). Because we could not distinguish clearly separate cell groups in this region, it has beeen referred to simply as the periolivary region (see Osen et al. 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

Superior olivary complex periolivary region - Rat - Swanson-1998
Superior olivary complex periolivary region - Rat - Swanson-2004