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The striatum (pl.: striata) or corpus striatum [5] is a cluster of interconnected nuclei that make up the largest structure of the subcortical basal ganglia. [6] The striatum is a critical component of the motor and reward systems; receives glutamatergic and dopaminergic inputs from different sources; and serves as the primary input to the rest of the basal ganglia.
Caudate nucleus within the skull. Along with the putamen, the caudate forms the dorsal striatum, which is considered a single functional structure; anatomically, it is separated by a large white-matter tract, the internal capsule, so it is sometimes also described as two structures—the medial dorsal striatum (the caudate) and the lateral dorsal striatum (the putamen).
The striatum is a subcortical structure generally divided into the dorsal striatum and ventral striatum. The dorsal striatum is further divided into a dorsomedial and dorsolateral striatum. [16] [17] [18] The striatum is composed mostly of medium spiny neurons.
The globus pallidus (GP), also known as paleostriatum or dorsal pallidum, [1] is a major component of the subcortical basal ganglia in the brain.It consists of two adjacent segments, one external (or lateral), known in rodents simply as the globus pallidus, and one internal (or medial).
Dorsomedial hypothalamic nucleus; ... Lateral tuberal nuclei; Posterior Medial area Mammillary nuclei (part of mammillary bodies ... Striatum. Dorsal striatum (a.k.a ...
The striatum is organized on a rostro-caudal axis, with the rostral putamen and caudate serving associative and cognitive functions and the caudal areas serving sensorimotor function. [6] Sometimes when the striatum is the expressed target the loop is referred to as the cortico-striatal-thalamic-cortical loop .
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The output neurons of the nucleus accumbens send axonal projections to the basal ganglia and the ventral analog of the globus pallidus, known as the ventral pallidum (VP). ). The VP, in turn, projects to the medial dorsal nucleus of the dorsal thalamus, which projects to the prefrontal cortex as well as back to the ventral and to dorsal stri