Definition: the inner and lighter gray portion of the lentiform nucleus; composed of a lateral segment (globus pallidus lateralis [TA]) and a medial segment (globus pallidus medialis [TA]) separated by a vertically oriented lamina of fibers, the lamina medullaris medialis [TA] (medial medullary lamina [TA]). The medial segment may also be incompletely divided into a lateral part [TA] (pars laterallis [TA]) and a medial part [TA] (pars medialis [TA]) by the accessory medullary lamina [TA] (lamina medullaris accessoria [TA]).
Synonym(s): pallidumTA, pale globe
See Also: paleostriatum
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