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lateral raphespinal tract

 

Definition: a group of axons that arise in the nucleus raphe magnus, descend in the posterior portion of the lateral funiculus, and terminate primarily in the posterior (dorsal) horn. These serotoninergic fibers are involved in the inhibition of transmission of nociceptive information through the dorsal horn.

Synonym(s): tractus raphespinalis lateralisTA

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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