principal olivary nucleus
the largest part of the inferior olivary complex, consisting of an undulating layer of cells formed by a posterior (dorsal) lamella [TA] (lamella posterior [TA]) and an anterior (ventral) lamella [TA] (lamella anterior [TA]) connected with each other laterally by a lateral lamella [TA] (lamella lateralis [TA]). The medially directed opening of this continuous cell layer is the hilum.
Synonym(s): nucleus olivaris principalisTA
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