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Corpus Striatum
Nervous System

Corpus Striatum

Quick Facts

The basal ganglia comprise a group of deep nuclei in the brain, which cooperate together to control motor functions, to set and learn routines and which are involved in associative learning and emotional regulation. These nuclei impose strong inhibitory signals on motor outputs of the brain, and adjust responses accordingly by processing information from higher centers of the cerebral cortex.

The primary nuclei comprising the basal ganglia are the striatum, which is made up of the caudate nucleus, the putamen, the globus pallidus, the substantia nigra and the subthalamic nucleus. The putamen and the globus pallidus collectively make up the lentiform nucleus, which, together with the caudate nucleus makes up the corpus striatum.

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Corpus Striatum

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The corpus striatum is the major input site of the basal ganglia, which modulates somatotopically organized cortical (glutaminergic) transmission from the skeletomotor, oculomotor, associative, and limbic regions (differentiation of the input into both caudate nucleus and putamen is discussed later).

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