Corpus striatum

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Brain: Corpus striatum
Diagrammatic coronal section of brain to show relations of neopallium. Cs. Corpus striatum. Th. Thalamus.
Two views of a model of the striatum: A, lateral aspect; B, mesal aspect.
Gray's subject #189 833
NeuroNames ancil-255
MeSH Corpus+Striatum

The corpus striatum (striated body) is a term used in a few different ways:

  • It is part of the extrapyramidal motor system.
  • According to BrainInfo (see link in infobox) it is a part of the basal ganglia comprising the globus pallidus and striatum.
  • From lateral to medial, the corpus striatum is composed of the external capsule (white matter), the lentiform nucleus (gray matter), the internal capsule (white matter), and the caudate nucleus (gray matter). The alternating white and gray matter give it a striated appearance.

Details from Gray's anatomy

The corpus striatum has received its name from the striped appearance which a section of its anterior part presents, in consequence of diverging white fibers being mixed with the gray substance which forms its chief mass.

A part of the corpus striatum is imbedded in the white substance of the hemisphere, and is therefore external to the ventricle; it is termed the extraventricular portion, or the lenticular nucleus.

The remainder, however, projects into the ventricle, and is named the intraventricular portion, or the caudate nucleus.

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

See also

External links