Acronym: Str
The term striatum refers to the largest of five predominantly cellular components of the basal ganglia ( Nomina-1983 ). In the human ( Carpenter-1983 ) and the macaque ( Martin-1997 ) it has two parts, the caudate nucleus and the putamen. The caudate nucleus encircles the putamen, separated from it by the internal capsule.
     The caudate nucleus and the putamen are not distinguishable in the rat and mouse. There the myelinated fibers that penetrate the striatum to connect the cerebral cortex and subcortical structures do not form an internal capsule but are distributed throughout the striatum. Thus, in the rodent the striatum is commonly called 'caudoputamen' ( Swanson-2004 ).
     In the striatopallidal system, the classical striatum, or caudoputamen, is the largest part of the dorsal striatum ( Heimer-1995 ). See also: extended striatum. Functionally it is part of the cerebral nuclei ( Swanson-2004 ).

Also known as: caudate putamen, caudate-putamen, caudoputamen, dorsal striatum, neostriatum, striate nucleusNeuroNames ID : 225

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