Anatomical distribution of flexor carpi radialis and flexor carpi ulnaris motor nuclei in the cat spinal cord

G. A. Iwamoto; L. H. Haber; J. A. Dixon; W. J. Gonyea

doi:10.1016/0304-3940(80)90228-1

Anatomical distribution of flexor carpi radialis and flexor carpi ulnaris motor nuclei in the cat spinal cord

G. A. Iwamoto, L. H. Haber, J. A. Dixon, W. J. Gonyea

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

The distribution of motoneurons innervating the flexor carpi radialis (FCR) and flexor carpi ulnaris (FCU) muscles was studied utilizing retrograde labeling with horseradish peroxidase (HRP). The motor nuclei showed considerable differences in their longitudinal extents. The FCR nucleus occupied spinal segments C6–T1 while FCU ranged from the C7–C8 junction to T1. Results with localized i.m. injection of HRP suggested a somatotopic distribution of these motoneurons.

Original language	English (US)
Pages (from-to)	25-30
Number of pages	6
Journal	Neuroscience Letters
Volume	20
Issue number	1
DOIs	https://doi.org/10.1016/0304-3940(80)90228-1
State	Published - Jan 1 1980

ASJC Scopus subject areas

Neuroscience(all)

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abstract = "The distribution of motoneurons innervating the flexor carpi radialis (FCR) and flexor carpi ulnaris (FCU) muscles was studied utilizing retrograde labeling with horseradish peroxidase (HRP). The motor nuclei showed considerable differences in their longitudinal extents. The FCR nucleus occupied spinal segments C6–T1 while FCU ranged from the C7–C8 junction to T1. Results with localized i.m. injection of HRP suggested a somatotopic distribution of these motoneurons.",

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AU - Iwamoto, G. A.

AU - Haber, L. H.

AU - Dixon, J. A.

AU - Gonyea, W. J.

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N2 - The distribution of motoneurons innervating the flexor carpi radialis (FCR) and flexor carpi ulnaris (FCU) muscles was studied utilizing retrograde labeling with horseradish peroxidase (HRP). The motor nuclei showed considerable differences in their longitudinal extents. The FCR nucleus occupied spinal segments C6–T1 while FCU ranged from the C7–C8 junction to T1. Results with localized i.m. injection of HRP suggested a somatotopic distribution of these motoneurons.

AB - The distribution of motoneurons innervating the flexor carpi radialis (FCR) and flexor carpi ulnaris (FCU) muscles was studied utilizing retrograde labeling with horseradish peroxidase (HRP). The motor nuclei showed considerable differences in their longitudinal extents. The FCR nucleus occupied spinal segments C6–T1 while FCU ranged from the C7–C8 junction to T1. Results with localized i.m. injection of HRP suggested a somatotopic distribution of these motoneurons.

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