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Cells of origin and terminal distrubution of corticostriatal fibers arising in the sensory‐motor cortex of monkeys

Cells of origin and terminal distrubution of corticostriatal fibers arising in the sensory‐motor... The cells of origin of the corticostriatal projection have been identified in squirrel monkeys by the use of the retrograde horseradish peroxidase method. In the subfields of the somatic sensory, motor, parietal and frontal areas of the cortex, cells projecting to the ipsilateral striatum are relatively sparsely distributed and form a group of small‐ to medium‐sized pyramidal cells with an average somal diameter from area to area of 14‐16 μm. Such cells are found only in layer V of the cortex (mainly in the more superficial parts of the layer). Since they are consistently smaller than the pyramidal cells of layer V that project to the brainstem and spinal cord and since they lie outside layer VI which gives rise to corticothalamic axons, the corticostriatal axons are unlikely to be collaterals of axons projecting to other sites. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Journal of Comparative Neurology Wiley

Cells of origin and terminal distrubution of corticostriatal fibers arising in the sensory‐motor cortex of monkeys

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References (68)

Publisher
Wiley
Copyright
"Copyright © 1977 Wiley Subscription Services, Inc., A Wiley Company"
ISSN
0021-9967
eISSN
1096-9861
DOI
10.1002/cne.901730105
pmid
403206
Publisher site
See Article on Publisher Site

Abstract

The cells of origin of the corticostriatal projection have been identified in squirrel monkeys by the use of the retrograde horseradish peroxidase method. In the subfields of the somatic sensory, motor, parietal and frontal areas of the cortex, cells projecting to the ipsilateral striatum are relatively sparsely distributed and form a group of small‐ to medium‐sized pyramidal cells with an average somal diameter from area to area of 14‐16 μm. Such cells are found only in layer V of the cortex (mainly in the more superficial parts of the layer). Since they are consistently smaller than the pyramidal cells of layer V that project to the brainstem and spinal cord and since they lie outside layer VI which gives rise to corticothalamic axons, the corticostriatal axons are unlikely to be collaterals of axons projecting to other sites.

Journal

The Journal of Comparative NeurologyWiley

Published: Jan 1, 1977

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