Either of two gray and white, striated bodies of nerve fibers located in the lower lateral wall of each cerebral hemisphere.
[New Latin corpus striātum : Latin corpus, body + Latin striātum, neuter of striātus, striated.]
corpus striatum
Dictionary:
corpus stri·a·tum (strī-ā'təm)  |
n., pl., corpora stri·a·ta (strī-ā'tə).
Either of two gray and white, striated bodies of nerve fibers located in the lower lateral wall of each cerebral hemisphere.
Either of two gray and white, striated bodies of nerve fibers located in the lower lateral wall of each cerebral hemisphere.
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| WordNet: corpus striatum |
Note: click on a word meaning below to see its connections and related words.
The noun has one meaning:
Meaning #1:
a striped mass of white and grey matter located in front of the thalamus in each cerebral hemisphere
Synonym: striate body
| Wikipedia: Corpus striatum |
| Brain: Corpus striatum | ||
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| Diagrammatic coronal section of brain to show relations of neopallium. Cs. Corpus striatum. Th. Thalamus. | ||
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| 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 compound structure consisting of the caudate nucleus and the lentiform nucleus, which consists of the putamen and the globus pallidus.[1]
Contents |
Definitions
The term has been used in a few different ways:
- It is a pair of nuclear masses which form the basal ganglia, along with the subthalamic nucleus and the substantia nigra.
- It may also refer to both the basal ganglia and internal capsule collectively.[2]
- According to the 1917 version of Gray's Anatomy, it is the combination of the lentiform nucleus (also known as the lenticular nucleus) and the caudate nucleus
- According to BrainInfo it is a part of the basal ganglia comprising the globus pallidus and striatum.[3]
Appearance
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.
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.
References
- ^ "Basal Ganglia and Cerebellum". http://thalamus.wustl.edu/course/cerebell.html.
- ^ "General Description of the Central Nervous System". http://www.csuchico.edu/~pmccaffrey/syllabi/CMSD%20320/362unit2.html.
- ^ "BrainInfo". http://braininfo.rprc.washington.edu/Scripts/ancilcentraldirectory.aspx?ID=255.
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.
See also
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 | striocerebellar |
| lenticulostriate |
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Corpus striatum". Read more |
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