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Definition of Descending pathway

Descending pathway: A nerve pathway that goes down the spinal cord and allows the brain to control movement of the body below the head.

In contrast, ascending pathways are nerve pathways that go upward from the spinal cord toward the brain carrying sensory information from the body to the brain.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=11290
Last Editorial Review: 6/14/2012

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